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44 results on '"MONTE-CARLO GENERATOR"'

1. Inclusive dijet cross sections in neutral current deep inelastic scattering at HERA

Author: H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWAL, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A. N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, D. BARTSCH, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, T. BOLD, E. G. BOOS, M. BORODIN, K. BORRAS, D. BOSCHERINI, D. BOT, S. K. BOUTLE, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P. J. BUSSEY, J. M. BUTTERWORTH, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C. D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, F. CINDOLO, A. M. COOPER SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DE FAVEREAU, J. DEL PESO, R. K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R. C. E. DEVENISH, D. DOBUR, B. A. DOLGOSHEIN, A. T. DOYLE, V. DRUGAKOV, L. S. DURKIN, S. DUSINI, Y. EISENBERG, P. F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M. I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L. K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, Y.U. A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J. C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, U. HOLM, R. HORI, K. HORTON, A. HÜTTMANN, G. IACOBUCCI, Z. A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H. P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T. W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I. I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L. A. KHEIN, J. Y. KIM, D. KISIELEWSKA, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, D. KOLLAR, P. KOOIJMAN, I.E. KOROL, I. A. KORZHAVINA, A. KOTA´NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, V. A. KUZMIN, A. LEE, B. B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T. Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, J. H. LOIZIDES, K. R. LONG, A. LONGHIN, D. LONTKOVSKYI, O. Y.U. LUKINA, P. LUZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J. F. MARTIN, A. MASTROBERARDINO, T. MATSUMOTO, M. C. K. MATTINGLY, I. A. MELZER PELLMANN, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J. D. MORRIS, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, U. NOOR, D. NOTZ, R. J. NOWAK, A. E. NUNCIO QUIROZ, B. Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, Y.U. ONISHCHUK, O. OTA, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J. M. PAWLAK, B. PAWLIK, P. G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N. S. POKROVSKIY, A. POLINI, A. S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D. D. REEDER, B. REISERT, Z. REN, J. REPOND, Y. D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, A. A. SAVIN, D. H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W. B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER SADENIUS, J. SCHWARTZ, F. SCIULLI, L. M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I. O. SKILLICORN, W. SLOMI´NSKI, W. H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T. P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK, D. SZUBA, J. SZUBA, A. D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, V. VIAZLO, N. N. VLASOV, O. VOLYNETS, R. WALCZAK, W. A. T. WAN ABDULLAH, J. J. WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K. WRONA, A. G. YAGÜES MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A. F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B. O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, M. ZOLKO, D. S. ZOTKIN, Z. ZULKAPLI, BASILE, MAURIZIO, CIFARELLI, LUISA, CONTIN, ANDREA, SARTORELLI, GABRIELLA, Precision Frontier, H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWAL, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, T. BOLD, E.G. BOOS, M. BORODIN, K. BORRAS, D. BOSCHERINI, D. BOT, S.K. BOUTLE, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, J.M. BUTTERWORTH, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DE FAVEREAU, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, U. HOLM, R. HORI, K. HORTON, A. HÜTTMANN, G. IACOBUCCI, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, D. KOLLAR, P. KOOIJMAN, IE.KOROL, I.A. KORZHAVINA, A. KOTA´NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, V.A. KUZMIN, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, J.H. LOIZIDES, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LUZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, T. MATSUMOTO, M.C.K. MATTINGLY, I.-A. MELZER-PELLMANN, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, O. OTA, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, V. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J. WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H.WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, M. ZOLKO, D.S. ZOTKIN, Z. ZULKAPLI, and Zeus (IHEF, IoP, FNWI)
Subjects: Particle physics, Photon, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), HERA, FOS: Physical sciences, COLOR DIPOLE MODEL, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, LEPTON-NUCLEON SCATTERING, 0103 physical sciences, ddc:530, Invariant mass, QCD ANALYSIS, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Quantum chromodynamics, Physics, Neutral current, 010308 nuclear & particles physics, Scattering, ZEUS BARREL CALORIMETER, Deep inelastic scattering, PHYSICS EVENT GENERATION, CENTRAL TRACKING DETECTOR, JET-PRODUCTION, PARTON DISTRIBUTIONS, High Energy Physics::Experiment, HADRON-COLLISIONS, Reference frame
Abstract: Single- and double-differential inclusive dijet cross sections in neutral current deep inelastic ep scattering have been measured with the ZEUS detector using an integrated luminosity of 374 pb^-1. The measurement was performed at large values of the photon virtuality, Q^2, between 125 and 20000 GeV^2. The jets were reconstructed with the k_T cluster algorithm in the Breit reference frame and selected by requiring their transverse energies in the Breit frame, E_T,B^jet, to be larger than 8 GeV. In addition, the invariant mass of the dijet system, M_jj, was required to be greater than 20 GeV. The cross sections are described by the predictions of next-to-leading-order QCD., 33 pages, 14 figures, 8 tables
Published: 2010

2. Search for stop production in R-parity-violating supersymmetry at HERA

Author: S. CHEKANOV, M. DERRICK, S. MAGILL, S. MIGLIORANZI, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M. C. K. MATTINGLY, N. PAVEL, A. G. YAGÜES MOLINA, S. ANTONELLI, P. ANTONIOLI, G. BARI, L. BELLAGAMBA, D. BOSCHERINI, A. BRUNI, G. BRUNI, F. CINDOLO, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, A. ZICHICHI, G. AGHUZUMTSYAN, D. BARTSCH, I. BROCK, S. GOERS, H. HARTMANN, E. HILGER, H. P. JAKOB, M. JÜNGST, O. M. KIND, E. PAUL, J. RAUTENBERG, R. RENNER, U. SAMSON, V. SCHÖNBERG, M. WANG, M. WLASENKO, N. H. BROOK, G. P. HEATH, J. D. MORRIS, T. NAMSOO, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J. Y. KIM, K. J. MA, Z. A. IBRAHIM, B. KAMALUDDIN, W. A. T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, V. ADLER, U. BEHRENS, I. BLOCH, A. BONATO, K. BORRAS, N. COPPOLA, J. FOURLETOVA, A. GEISER, D. GLADKOV, P. GÖTTLICHER, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, C. HORN, B. KAHLE, U. KÖTZ, H. KOWALSKI, H. LIM, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I. A. MELZER PELLMANN, A. MONTANARI, C. N. NGUYEN, D. NOTZ, A. E. NUNCIO QUIROZ, R. SANTAMARTA, U. SCHNEEKLOTH, H. STADIE, U. STÖSSLEIN, D. SZUBA, J. SZUBA, T. THEEDT, G. WATT, G. WOLF, K. WRONA, C. YOUNGMAN, W. ZEUNER, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N. N. VLASOV, P. J. BUSSEY, A. T. DOYLE, W. DUNNE, J. FERRANDO, S. HANLON, D. H. SAXON, I. O. SKILLICORN, I. GIALAS, T. GOSAU, U. HOLM, R. KLANNER, E. LOHRMANN, H. SALEHI, P. SCHLEPER, T. SCHÖRNER SADENIUS, J. SZTUK, K. WICHMANN, K. WICK, C. FOUDAS, C. FRY, K. R. LONG, A. D. TAPPER, M. KATAOKA, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A. N. BARAKBAEV, E. G. BOOS, A. DOSSANOV, N. S. POKROVSKIY, B. O. ZHAUTYKOV, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, J. TERRÓN, M. ZAMBRANA, F. CORRIVEAU, C. LIU, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B. A. DOLGOSHEIN, I. RUBINSKY, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R. K. DEMENTIEV, P. F. ERMOLOV, L. K. GLADILIN, I. I. KATKOV, L. A. KHEIN, I. A. KORZHAVINA, V. A. KUZMIN, B. B. LEVCHENKO, O. Y.U. LUKINA, A. S. PROSKURYAKOV, L. M. SHCHEGLOVA, D. S. ZOTKIN, S. A. ZOTKIN, I. ABT, C. BÜTTNER, A. CALDWELL, D. KOLLAR, X. LIU, W. B. SCHMIDKE, J. SUTIAK, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L. S. DURKIN, A. LEE, T. Y. LING, P. D. ALLFREY, M. A. BELL, A. M. COOPER SARKAR, A. COTTRELL, R. C. E. DEVENISH, B. FOSTER, C. GWENLAN, K. KORCSAK GORZO, S. PATEL, V. ROBERFROID, A. ROBERTSON, P. B. STRAUB, C. URIBE ESTRADA, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, R. CIESIELSKI, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, M. TURCATO, B. Y. OH, A. RAVAL, J. J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J. E. COLE, J. C. HART, H. ABRAMOWICZ, A. GABAREEN, R. INGBIR, S. KANANOV, A. LEVY, M. KUZE, R. HORI, S. KAGAWA, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y. D. RI, M. I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J. F. MARTIN, J. M. BUTTERWORTH, R. HALL WILTON, T. W. JONES, J. H. LOIZIDES, M. R. SUTTON, C. TARGETT ADAMS, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R. J. NOWAK, J. M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, J. UKLEJA, A. F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, I. GILLER, D. HOCHMAN, U. KARSHON, E. BROWNSON, T. DANIELSON, A. EVERETT, D. KÇIRA, D. D. REEDER, M. ROSIN, P. RYAN, A. A. SAVIN, W. H. SMITH, H. WOLFE, S. BHADRA, C. D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, M. SOARES, J. STANDAGE, J. WHYTE, BASILE, MAURIZIO, BINDI, MARCELLO, CIFARELLI, LUISA, CONTIN, ANDREA, RINALDI, LORENZO, SARTORELLI, GABRIELLA, S. CHEKANOV, M. DERRICK, S. MAGILL, S. MIGLIORANZI, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, N. PAVEL, A.G. YAGÜES MOLINA, S. ANTONELLI, P. ANTONIOLI, G. BARI, M. BASILE, L. BELLAGAMBA, M. BINDI, D. BOSCHERINI, A. BRUNI, G. BRUNI, L. CIFARELLI, F. CINDOLO, A. CONTIN, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, L. RINALDI, G. SARTORELLI, A. ZICHICHI, G. AGHUZUMTSYAN, D. BARTSCH, I. BROCK, S. GOERS, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JÜNGST, O.M. KIND, E. PAUL, J. RAUTENBERG, R. RENNER, U. SAMSON, V. SCHÖNBERG, M. WANG, M. WLASENKO, N.H. BROOK, G.P. HEATH, J.D. MORRIS, T. NAMSOO, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, K.J. MA, Z.A. IBRAHIM, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, V. ADLER, U. BEHRENS, I. BLOCH, A. BONATO, K. BORRAS, N. COPPOLA, J. FOURLETOVA, A. GEISER, D. GLADKOV, P. GÖTTLICHER, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, C. HORN, B. KAHLE, U. KÖTZ, H. KOWALSKI, H. LIM, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I.-A. MELZER-PELLMANN, A. MONTANARI, C.N. NGUYEN, D. NOTZ, A.E. NUNCIO-QUIROZ, R. SANTAMARTA, U. SCHNEEKLOTH, H. STADIE, U. STÖSSLEIN, D. SZUBA, J. SZUBA, T. THEEDT, G. WATT, G. WOLF, K. WRONA, C. YOUNGMAN, W. ZEUNER, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P.G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, W. DUNNE, J. FERRANDO, S. HANLON, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, T. GOSAU, U. HOLM, R. KLANNER, E. LOHRMANN, H. SALEHI, P. SCHLEPER, T. SCHÖRNER-SADENIUS, J. SZTUK, K. WICHMANN, K. WICK, C. FOUDAS, C. FRY, K.R. LONG, A.D. TAPPER, M. KATAOKA, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, A. DOSSANOV, N.S. POKROVSKIY, B.O. ZHAUTYKOV, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, J. TERRÓN, M. ZAMBRANA, F. CORRIVEAU, C. LIU, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, I. RUBINSKY, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F. ERMOLOV, L.K. GLADILIN, I.I. KATKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A. KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, S.A. ZOTKIN, I. ABT, C. BÜTTNER, A. CALDWELL, D. KOLLAR, X. LIU, W.B. SCHMIDKE, J. SUTIAK, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, P.D. ALLFREY, M.A. BELL, A.M. COOPER-SARKAR, A. COTTRELL, R.C.E. DEVENISH, B. FOSTER, C. GWENLAN, K. KORCSAK-GORZO, S. PATEL, V. ROBERFROID, A. ROBERTSON, P.B. STRAUB, C. URIBE-ESTRADA, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, R. CIESIELSKI, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, M. TURCATO, B.Y. OH, A. RAVAL, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.E. COLE, J.C. HART, H. ABRAMOWICZ, A. GABAREEN, R. INGBIR, S. KANANOV, A. LEVY, M. KUZE, R. HORI, S. KAGAWA, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, J.M. BUTTERWORTH, R. HALL-WILTON, T.W. JONES, J.H. LOIZIDES, M.R. SUTTON, C. TARGETT-ADAMS, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J. NOWAK, J.M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, J. UKLEJA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, I. GILLER, D. HOCHMAN, U. KARSHON, E. BROWNSON, T. DANIELSON, A. EVERETT, D. KÇIRA, D.D. REEDER, M. ROSIN, P. RYAN, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, M. SOARES, J. STANDAGE, and J. WHYTE
Subjects: Particle physics, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), STANDARD MODEL, HERA, FOS: Physical sciences, Lambda, 01 natural sciences, JET FRAGMENTATION, DECAYS, High Energy Physics - Experiment, E(+)E(-) COLLISIONS, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, R-parity, 0103 physical sciences, SCATTERING, ddc:530, 010306 general physics, Engineering (miscellaneous), Physics, E+E-PHYSICS, 010308 nuclear & particles physics, Supergravity, High Energy Physics::Phenomenology, ZEUS BARREL CALORIMETER, Supersymmetry, PHYSICS EVENT GENERATION, Coupling (probability), PARTON DISTRIBUTIONS, Production (computer science), High Energy Physics::Experiment, Minimal Supersymmetric Standard Model
Abstract: A search for stop production in R-parity-violating supersymmetry has been performed in $e^{+}p$ interactions with the ZEUS detector at HERA, using an integrated luminosity of 65 pb$^{-1}$. At HERA, the R-parity-violating coupling $\lambda'$ allows resonant squark production, $e^+d\to\tilde{q}$. Since the lowest-mass squark state in most supersymmetry models is the light stop, $\tilde{t}$, this search concentrated on production of $\tilde{t}$, followed either by a direct R-parity-violating decay, or by the gauge decay to $b\tilde{\chi}^+_{1}$. No evidence for stop production was found and limits were set on $\lambda'_{131}$ as a function of the stop mass in the framework of the Minimal Supersymmetric Standard Model. The results have also been interpreted in terms of constraints on the parameters of the minimal Supergravity model., Comment: 24 pages, 11 figures, 1 table, Accepted by European Physical Journal C
Published: 2007

3. Measurement of event shapes in deep inelastic scattering at HERA

Author: Chekanov, S, Krakauer, D, Loizides, JH, Magill, S, Musgrave, B, Repond, J, Yoshida, R, Mattingly, MCK, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, GC, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Margotti, A, Nania, R, Palmonari, F, Pesci, A, Sartorelli, G, Zichichi, A, Aghuzumtsyan, G, Bartsch, D, Brock, I, Goers, S, Hartmann, H, Hilger, E, Irrgang, P, Jakob, HP, Kappes, A, Katz, UF, Kind, O, Paul, E, Rautenberg, J, Renner, R, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, KC, Wang, M, Weber, A, Bailey, DS, Brook, NH, Cole, JE, Foster, B, Heath, GP, Heath, HF, Robins, S, Rodrigues, E, Scott, J, Tapper, RJ, Wing, M, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Kim, JY, Kim, YK, Lee, JH, Lim, IT, Pac, MY, Caldwell, A, Helbich, M, Liu, X, Mellado, B, Ning, Y, Paganis, S, Ren, Z, Schmidke, WB, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Olkiewicz, K, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, Grabowska-Bold, I, Kisielewska, D, Kowal, AM, Kowal, M, Kowalski, T, Przybycien, M, Suszycki, L, Szuba, D, Szuba, J, Kotanski, A, Slominski, W, Bauerdick, LAT, Behrens, U, Bloch, I, Borras, K, Chiochia, V, Dannheim, D, Derrick, M, Drews, G, Fourletova, J, Fox-Murphy, A, Fricke, U, Geiser, A, Goebel, F, Gottlicher, P, Gutsche, O, Haas, T, Hain, W, Hartner, GF, Hillert, S, Kotz, U, Kowalski, H, Kramberger, G, Labes, H, Lelas, D, Lohr, B, Mankel, R, Melzer-Pellmann, IA, Moritz, M, Notz, D, Petrucci, MC, Polini, A, Raval, A, Schneekloth, U, Selonke, F, Wessoleck, H, Wichmann, R, Wolf, G, Youngman, C, Zeuner, W, Viani, ALD, Meyer, A, Schlenstedt, S, Barbagli, G, Gallo, E, Genta, C, Pelfer, PG, Bamberger, A, Benen, A, Coppola, N, Bell, M, Bussey, PJ, Doyle, AT, Glasman, C, Hamilton, J, Hanlon, S, Lee, SW, Lupi, A, McCance, GJ, Saxon, DH, Skillicorn, IO, Gialas, I, Bodmann, B, Carli, T, Holm, U, Klimek, K, Krumnack, N, Lohrmann, E, Milite, M, Salehi, H, Stonjek, S, Wick, K, Ziegler, A, Collins-Tooth, C, Foudas, C, Goncalo, R, Long, KR, Metlica, F, Tapper, AD, Cloth, P, Filges, D, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, AN, Boos, EG, Pokrovskiy, NS, Zhautykov, BO, Lim, H, Son, D, Barreiro, F, Gonzalez, O, Labarga, L, del Peso, J, Redondo, I, Tassi, E, Terron, J, Vazquez, M, Barbi, M, Bertolin, A, Corriveau, F, Ochs, A, Padhi, S, Stairs, DG, St-Laurent, M, Tsurugai, T, Antonov, A, Danilov, P, Dolgoshein, BA, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, RK, Ermolov, PF, Golubkov, YA, Katkov, II, Khein, LA, Korzhavina, IA, Kuzmin, VA, Levchenko, BB, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Vlasov, NN, Zotkin, SA, Bokel, C, Engelen, J, Grijpink, S, Koffeman, E, Kooijman, P, Maddox, E, Pellegrino, A, Schagen, S, Tiecke, H, Tuning, N, Velthuis, JJ, Wiggers, L, de Wolf, E, Brummer, N, Bylsma, B, Durkin, LS, Ling, TY, Boogert, S, Cooper-Sarkar, AM, Devenish, RCE, Ferrando, J, Grzelak, G, Matsushita, T, Rigby, M, Ruske, O, Sutton, MR, Walczak, R, Brugnera, R, Carlin, R, Dal Corso, F, Dusini, S, Garfagnini, A, Limentani, S, Longhin, A, Parenti, A, Posocco, M, Stanco, L, Turcato, M, Heaphy, EA, Oh, BY, Saull, PRB, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, JC, McCubbin, NA, Heusch, C, Park, IH, Pavel, N, Abramowicz, H, Gabareen, A, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Kagawa, S, Kohno, T, Tawara, T, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Ferrero, MI, Monaco, V, Ruspa, M, Sacchi, R, Solano, A, Galea, R, Koop, T, Levman, GM, Martin, JF, Mirea, A, Sabetfakhri, A, Butterworth, JM, Gwenlan, C, Hall-Wilton, R, Jones, TW, Lightwood, MS, West, BJ, Ciborowski, J, Ciesielski, R, Nowak, RJ, Pawlak, JM, Smalska, B, Sztuk, J, Tymieniecka, T, Ukleja, A, Ukleja, J, Zarnecki, AF, Adamus, M, Plucinski, P, Eisenberg, Y, Gladilin, LK, Hochman, D, Karshon, U, Kcira, D, Lammers, S, Li, L, Reeder, DD, Savin, AA, Smith, WH, Deshpande, A, Dhawan, S, Hughes, VW, Straub, PB, Bhadra, S, Catterall, CD, Fourletov, S, Menary, S, Soares, M, Standage, J, Collaboration, ZEUS, and Zeus (IHEF, IoP, FNWI)
Subjects: Particle physics, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), FOS: Physical sciences, PROTON SCATTERING, 01 natural sciences, CROSS-SECTIONS, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), POWER CORRECTIONS, ZEUS, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, PARTON DISTRIBUTIONS, MOMENTUM SPECTRA, BREIT FRAME, QCD, 0103 physical sciences, 010303 astronomy & astrophysics, Engineering (miscellaneous), QC, Boson, Physics, Quantum chromodynamics, ZEUS (particle detector), Luminosity (scattering theory), Neutral current, 010308 nuclear & particles physics, Scattering, HERA, Deep inelastic scattering, High Energy Physics::Experiment
Abstract: Inclusive event-shape variables have been measured in the current region of the Breit frame for neutral current deep inelastic ep scattering using an integrated luminosity of 45.0 pb^-1 collected with the ZEUS detector at HERA. The variables studied included thrust, jet broadening and invariant jet mass. The kinematic range covered was 10 < Q^2 < 20,480 GeV^2 and 6.10^-4 < x < 0.6, where Q^2 is the virtuality of the exchanged boson and x is the Bjorken variable. The Q dependence of the shape variables has been used in conjunction with NLO perturbative calculations and the Dokshitzer-Webber non-perturbative corrections (`power corrections') to investigate the validity of this approach., 7+25 pages, 6 figures
Published: 2003

4. Leading proton production in $e^+p$ collisions at HERA

Author: Chekanov, S, Krakauer, D, Loizides, JH, Magill, S, Musgrave, B, Repond, J, Yoshida, R, Mattingly, MCK, Antonioli, P, Anzivino, G, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, GC, Chiarini, M, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Levi, G, Margotti, A, Massam, T, Nania, R, Nemoz, C, Palmonari, F, Pesci, A, Sartorelli, G, Garcia, YZ, Zichichi, A, Aghuzumtsyan, G, Bartsch, D, Brock, I, Crittenden, J, Goers, S, Hartmann, H, Hilger, E, Irrgang, P, Jakob, HP, Kappes, A, Katz, UF, Kind, O, Paul, E, Rautenberg, J, Renner, R, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, KC, Wang, M, Weber, A, Bailey, DS, Brook, NH, Cole, JE, Foster, B, Heath, GP, Heath, HF, Namsoo, T, Robins, S, Rodrigues, E, Wing, M, Ayad, R, Capua, M, Iannotti, L, Mastroberardino, A, Schioppa, M, Susinno, G, Kim, JY, Kim, YK, Lee, JH, Lim, IT, Pac, MY, Caldwell, A, Helbich, M, Liu, X, Mellado, B, Ning, Y, Paganis, S, Ren, Z, Schmidke, WB, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Olkiewicz, K, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, Grabowska-Bold, I, Kisielewska, D, Kowal, AM, Kowal, M, Kowalski, T, Przybycien, M, Suszycki, L, Szuba, D, Szuba, J, Kotanski, A, Slominski, W, Bauerdick, LAT, Behrens, U, Bloch, I, Borras, K, Chiochia, V, Dannheim, D, Derrick, M, Drews, G, Fourletova, J, Fox-Murphy, A, Fricke, U, Geiser, A, Goebel, F, Gottlicher, P, Gutsche, O, Haas, T, Hain, W, Hartner, GF, Hillert, S, Kotz, U, Kowalski, H, Kramberger, G, Labes, H, Lelas, D, Lohr, B, Mankel, R, Melzer-Pellmann, IA, Moritz, M, Notz, D, Petrucci, MC, Polini, A, Raval, A, Schneekloth, U, Selonke, F, Wessoleck, H, Wichmann, R, Wolf, G, Youngman, C, Zeuner, W, Viani, ALP, Meyer, A, Schlenstedt, S, Barbagli, G, Gallo, E, Genta, C, Pelfer, PG, Bamberger, A, Benen, A, Coppola, N, Raach, H, Bell, M, Bussey, PJ, Doyle, AT, Glasman, C, Hamilton, J, Hanlon, S, Lupi, A, Saxon, DH, Skillicorn, IO, Gialas, I, Bodmann, B, Carli, T, Holm, U, Klimek, K, Krumnack, N, Lohrmann, E, Milite, M, Salehi, S, Stonjek, S, Wick, K, Ziegler, A, Collins-Tooth, C, Foudas, C, Goncalo, R, Long, KR, Metlica, F, Miller, DB, Tapper, AD, Walker, R, Cloth, P, Filges, D, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, AN, Boos, EG, Pokrovskiy, NS, Zhautykov, BO, Lim, H, Son, D, Barreiro, F, Gonzalez, O, Labarga, L, del Peso, J, Redondo, I, Terron, J, Vazquez, M, Barbi, M, Bertolin, A, Corriveau, F, Gliga, S, Lainesse, S, Padhi, S, Stairs, DG, Tsurugai, T, Antonov, A, Danilov, P, Dolgoshein, BA, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, RK, Ermolov, PF, Golubkov, YA, Katkov, II, Khein, LA, Korzhavina, IA, Kuzmin, VA, Levchenko, BB, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Vlasov, NN, Zotkin, SA, Bokel, C, Engelen, J, Grijpink, S, Koffeman, E, Kooijman, P, Maddox, E, Pellegrino, A, Schagen, S, Tassi, E, Tiecke, H, Tuning, N, Velthuis, JJ, Wiggers, L, de Wolf, E, Brummer, N, Bylsma, B, Durkin, LS, Gilmore, J, Ginsburg, CM, Kim, CL, Ling, TY, Boogert, S, Cooper-Sarkar, AM, Devenish, RCE, Ferrando, J, Grzelak, G, Patel, S, Rigby, M, Sutton, MR, Walczak, R, Brugnera, R, Carlin, R, Dal Corso, F, Dusini, S, Garfagnini, A, Limentani, S, Longhin, A, Parenti, A, Posocco, M, Stanco, L, Turcato, M, Heaphy, EA, Oh, BY, Saull, PRB, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, JC, Barberis, E, Heusch, C, Lockman, W, Rahn, JT, Sadrozinski, HFW, Seiden, A, Williams, DC, Park, IH, Pavel, N, Abramowicz, H, Gabareen, A, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Kagawa, S, Kohno, T, Tawara, T, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kaji, H, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Cartiglia, N, Cirio, R, Costa, M, Ferrero, MI, Lamberti, L, Maselli, S, Monaco, V, Peroni, CR, Sacchi, R, Solano, A, Staiano, A, Galea, R, Koop, T, Levman, GM, Martin, JF, Mirea, A, Sabetfakhri, A, Butterworth, JM, Gwenlan, C, Hall-Wilton, R, Jones, TW, Lightwood, MS, Ciborowski, J, Ciesielski, R, Nowak, RJ, Pawlak, JM, Smalska, B, Sztuk, J, Tymieniecka, T, Ukleja, A, Ukleja, J, Zarnecki, AF, Adamus, M, Plucinski, P, Eisenberg, Y, Gladilin, LK, Hochman, D, Karshon, U, Kcira, D, Lammers, S, Li, L, Reeder, DD, Savin, AA, Smith, WH, Deshpande, A, Dhawan, S, Hughes, VW, Straub, PB, Bhadra, S, Catterall, CD, Fourletov, S, Menary, S, Soares, M, Standage, J, Collaboration, ZEUS, and Zeus (IHEF, IoP, FNWI)
Subjects: ZEUS, DEEP-INELASTIC SCATTERING, LEPTON-NUCLEON SCATTERING, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, STRUCTURE-FUNCTION F-2, MONTE-CARLO GENERATOR, DIFFRACTIVE PHOTOPRODUCTION, NEUTRON-PRODUCTION, FRACTURE FUNCTIONS, CROSS-SECTIONS, Nuclear and High Energy Physics, Particle physics, Proton, Hadron, FOS: Physical sciences, Elementary particle, Inelastic scattering, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, Branching fraction, HERA, Deep inelastic scattering, High Energy Physics::Experiment, Nucleon
Abstract: Events with a final-state proton carrying a large fraction of the proton-beam momentum, x_L>0.6, and the square of the transverse momentum p_T^2, Comment: 53 pages, 19 figures; Fig. 19 replaced; some changes to the text. Version accepted by Nuclear Physics B
Published: 2003

5. Measurement of dijet production in neutral current deep inelastic scattering at high Q**2 and determination of alpha_s

Author: Breitweg, J, Chekanov, S, Derrick, M, Krakauer, D, Magill, S, Musgrave, B, Pellegrino, A, Repond, J, Stanek, R, Yoshida, R, Mattingly, MCK, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, GC, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Sartorelli, G, Zichichi, A, Aghuzumtsyan, G, Amelung, C, Brock, I, Coboken, K, Goers, S, Hartmann, H, Heinloth, K, Hilger, E, Irrgang, P, Jakob, HP, Kappes, A, Katz, UF, Kerger, R, Kind, O, Paul, E, Rautenberg, J, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, KC, Weber, A, Wieber, H, Bailey, DS, Barret, O, Brook, NH, Cole, JE, Foster, B, Heath, GP, Heath, HF, Robins, S, Rodrigues, E, Scott, J, Tapper, RJ, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Jeoung, HY, Kim, JY, Lee, JH, Lim, IT, Ma, KJ, Pac, MY, Caldwell, A, Liu, W, Liu, X, Mellado, B, Paganis, S, Sampson, S, Schmidke, WB, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Olkiewicz, K, Przybycien, MB, Stopa, P, Zawiejski, L, Bednarek, B, Jelen, K, Kisielewska, D, Kowal, AM, Kowalski, T, Przybycien, M, Rulikowska-Zarebska, E, Suszycki, L, Szuba, D, Kotanski, A, Bauerdick, LAT, Behrens, U, Bienlein, JK, Borras, K, Chiochia, V, Crittenden, J, Dannheim, D, Desler, K, Drews, G, Fox-Murphy, A, Fricke, U, Goebel, F, Gottlicher, P, Graciani, R, Haas, T, Hain, W, Hartner, GF, Hebbel, K, Hillert, S, Koch, W, Kotz, U, Kowalski, H, Labes, H, Lohr, B, Mankel, R, Martens, J, Martinez, M, Milite, M, Moritz, M, Notz, D, Petrucci, MC, Polini, A, Rohde, M, Savin, AA, Schneekloth, U, Selonke, F, Stonjek, S, Wolf, G, Wollmer, U, Youngman, C, Zeuner, W, Coldewey, C, Viani, ALD, Meyer, A, Schlenstedt, S, Straub, PB, Barbagli, G, Gallo, E, Parenti, A, Pelfer, PG, Bamberger, A, Benen, A, Coppola, N, Eisenhardt, S, Markun, P, Raach, H, Wolfle, S, Bell, M, Bussey, PJ, Doyle, AT, Glasman, C, Lee, SW, Lupi, A, Macdonald, N, McCance, GJ, Saxon, DH, Sinclair, LE, Skillicorn, IO, Waugh, R, Bodmann, B, Gendner, N, Holm, U, Salehi, H, Wick, K, Yildirim, A, Ziegler, A, Carli, T, Garfagnini, A, Geiser, A, Gialas, I, Kcira, D, Lohrmann, E, Goncalo, R, Long, KR, Miller, DB, Tapper, AD, Walker, R, Cloth, P, Filges, D, Ishii, T, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, AN, Boos, EG, Pokrovskiy, NS, Zhautykov, BO, Ahn, SH, Lee, SB, Park, SK, Lim, H, Son, D, Barreiro, F, Garcia, G, Gonzalez, O, Labarga, L, del Peso, J, Redondo, I, Terron, J, Vazquez, M, Barbi, M, Corriveau, F, Padhi, S, Stairs, DG, Wing, M, Tsurugai, T, Antonov, A, Bashkirov, V, Danilov, P, Dolgoshein, BA, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, RK, Ermolov, PF, Golubkov, YA, Katkov, II, Khein, LA, Korotkova, NA, Korzhavina, IA, Kuzmin, VA, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Solomin, AN, Vlasov, NN, Zotkin, SA, Bokel, C, Botje, M, Engelen, J, Grijpink, S, Koffeman, E, Kooijman, P, Schagen, S, van Sighem, A, Tassi, E, Tiecke, H, Tuning, N, Velthuis, JJ, Vossebeld, J, Wiggers, L, de Wolf, E, Brummer, N, Bylsma, B, Durkin, LS, Gilmore, J, Ginsburg, CM, Kim, CL, Ling, TY, Boogert, S, Cooper-Sarkar, AM, Devenish, RCE, Grosse-Knetter, J, Matsushita, T, Ruske, O, Sutton, MR, Walczak, R, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, F, Dusini, S, Limentani, S, Longhin, A, Posocco, M, Stanco, L, Turcato, M, Adamczyk, L, Iannotti, L, Oh, BY, Okrasinski, JR, Saull, PRB, Toothacker, WS, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, JC, McCubbin, NA, Shah, TP, Epperson, D, Heusch, C, Sadrozinski, HFW, Seiden, A, Wichmann, R, Williams, DC, Park, IH, Pavel, N, Abramowicz, H, Dagan, S, Gabareen, A, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Kohno, T, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Cartiglia, N, Cirio, R, Costa, M, Ferrero, MI, Maselli, S, Monaco, V, Peroni, C, Ruspa, M, Sacchi, R, Solano, A, Staiano, A, Bailey, DC, Fagerstroem, CP, Galea, R, Koop, T, Levman, GM, Martin, JF, Mirea, A, Sabetfakhri, A, Butterworth, JM, Gwenlan, C, Hayes, ME, Heaphy, EA, Jones, TW, Lane, JB, West, BJ, Ciborowski, J, Ciesielski, R, Grzelak, G, Nowak, RJ, Pawlak, JM, Pawlak, R, Smalska, B, Tymieniecka, T, Wroblewski, AK, Zakrzewski, JA, Zarnecki, AF, Adamus, M, Gadaj, T, Deppe, O, Eisenberg, Y, Gladilin, LK, Hochman, D, Karshon, U, Badgett, WF, Chapin, D, Cross, R, Foudas, C, Mattingly, S, Reeder, DD, Smith, WH, Vaiciulis, A, Wildschek, T, Wodarczyk, M, Deshpande, A, Dhawan, S, Hughes, VW, Bhadra, S, Catterall, CD, Frisken, WR, Hall-Wilton, R, Khakzad, M, Menary, S, Collaboration, ZEUS, and Zeus (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, Proton, FOS: Physical sciences, Parton, Inelastic scattering, COLOR DIPOLE MODEL, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), LEPTON-NUCLEON SCATTERING, 0103 physical sciences, 010306 general physics, QC, Quantum chromodynamics, Physics, Neutral current, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, ZEUS, ZEUS BARREL CALORIMETER, HERA, Deep inelastic scattering, CENTRAL TRACKING DETECTOR, Pair production, PARTON DISTRIBUTIONS, PERTURBATION-THEORY, JET CROSS-SECTIONS, High Energy Physics::Experiment, HADRON-COLLISIONS, TO-LEADING ORDER
Abstract: Dijet production has been studied in neutral current deep inelastic e+p scattering for 470 < Q**2 < 20000 GeV**2 with the ZEUS detector at HERA using an integrated luminosity of 38.4 pb**{-1}. Dijet differential cross sections are presented in a kinematic region where both theoretical and experimental uncertainties are small. Next-to-leading-order (NLO) QCD calculations describe the measured differential cross sections well. A QCD analysis of the measured dijet fraction as a function of Q**2 allows both a precise determination of alpha_s(M_Z) and a test of the energy-scale dependence of the strong coupling constant. A detailed analysis provides an improved estimate of the uncertainties of the NLO QCD cross sections arising from the parton distribution functions of the proton. The value of alpha_s(M_Z), as determined from the QCD fit, is alpha_s(M_Z) = 0.1166 +- 0.0019 (stat.) {+ 0.0024}_{-0.0033} (exp.)} {+ 0.0057}_{- 0.0044} (th.)., 32 pages including 5 figures and 23 tables. Final version to appear in PLB
Published: 2001

6. Measurement of azimuthal asymmetries in deep inelastic scattering

Author: Breitweg, J, Chekanov, S, Derrick, M, Krakauer, D, Magill, S, Musgrave, B, Pellegrino, A, Repond, J, Stanek, R, Yoshida, R, Mattingly, M C K, Abbiendi, G, Anselmo, F, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, G C, Castellini, G, Cifarelli, L, Cindolo, F, Contin, A, Coppola, N, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Laurenti, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Polini, A, Sartorelli, G, Garcia, Y Z, Zichichi, A, Amelung, C, Bornheim, A, Brock, I, Coboken, K, Crittenden, J, Deffner, R, Hartmann, H, Heinloth, K, Hilger, E, Irrgang, P, Jakob, H P, Kappes, A, Katz, U F, Kerger, R, Paul, E, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, K C, Weber, A, Wieber, H, Bailey, D S, Barret, O, Brook, N H, Foster, B, Heath, G P, Heath, H F, McFall, J D, Piccioni, D, Rodrigues, E, Scott, J, Tapper, R J, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Jeoung, H Y, Kim, J Y, Lee, J H, Lim, I T, Ma, K J, Pac, M Y, Caldwell, A, Liu, W, Liu, X, Mellado, B, Paganis, S, Sampson, S, Schmidke, W B, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Olkiewicz, K, Piotrzkowski, K, Przybycien, M B, Stopa, P, Zawiejski, L, Bednarek, B, Jelen, K, Kisielewska, D, Kowal, A M, Kowalski, T, Przybycien, M, Rulikowska-Zarebska, E, Suszycki, L, Szuba, D, Kotanski, A, Bauerdick, L A T, Behrens, U, Bienlein, J K, Burgard, C, Dannheim, D, Desler, K, Drews, G, Fox-Murphy, A, Fricke, U, Goebel, F, Gottlicher, P, Graciani, R, Haas, T, Hain, W, Hartner, G F, Hasell, D, Hebbel, K, Johnson, K F, Kasemann, M, Koch, W, Kotz, U, Kowalski, H, Lindemann, L, Lohr, B, Martinez, M, Milite, M, Monteiro, T, Moritz, M, Notz, D, Pelucchi, F, Petrucci, M C, Rohde, M, Saull, P R B, Savin, A A, Schneekloth, U, Selonke, F, Sievers, M, Stonjek, S, Tassi, E, Wolf, G, Wollmer, U, Youngman, C, Zeuner, W, Coldewey, C, Viani, A L D, Meyer, A, Schlenstedt, S, Straub, P B, Barbagli, G, Gallo, E, Pelfer, P, Maccarrone, G, Votano, L, Bamberger, A, Benen, A, Eisenhardt, S, Markun, P, Raach, H, Wolfle, S, Bussey, P J, Doyle, A T, Lee, S W, Macdonald, N, McCance, G J, Saxon, D H, Sinclair, L E, Skillicorn, I O, Waugh, R, Bohnet, I, Gendner, N, Holm, U, Meyer-Larsen, A, Salehi, H, Wick, K, Garfagnini, A, Gialas, I, Gladilin, L K, Kcira, D, Klanner, R, Lohrmann, E, Poelz, G, Zetsche, F, Goncalo, R, Long, K R, Miller, D B, Tapper, A D, Walker, R, Mallik, U, Cloth, P, Filges, D, Ishii, T, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Ahn, S H, Lee, S B, Park, S K, Lim, H, Park, I H, Son, D, Barreiro, F, Garcia, G, Glasman, C, Gonzalez, O, Labarga, L, del Peso, J, Redondo, I, Terron, J, Barbi, M, Corriveau, F, Hanna, D S, Ochs, A, Padhi, S, Riveline, M, Stairs, D G, Wing, M, Tsurugai, T, Bashkirov, V, Dolgoshein, B A, Dementiev, R K, Ermolov, P F, Golubkov, Y A, Katkov, I I, Khein, L A, Korotkova, N A, Korzhavina, I A, Kuzmin, V A, Lukina, O Y, Proskuryakov, A S, Shcheglova, L M, Solomin, A N, Vlasov, N N, Zotkin, S A, Bokel, C, Botje, M, Brummer, N, Engelen, J, Grijpink, S, Koffeman, E, Kooijman, P, Schagen, S, van Sighem, A, Tiecke, H, Tuning, N, Velthuis, J J, Vossebeld, J, Wiggers, L, de Wolf, E, Acosta, D, Bylsma, B, Durkin, L S, Gilmore, J, Ginsburg, C M, Kim, C L, Ling, T Y, Boogert, S, Cooper-Sarkar, A M, Devenish, R C E, Grobe-Knetter, J, Matsushita, T, Ruske, O, Sutton, M R, Walczak, R, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, F, Dosselli, U, Dusini, S, Limentani, S, Morandin, M, Posocco, P, Stanco, L, Stroili, R, Voci, C, Adamczyk, L, Iannotti, L, Oh, B Y, Okrasinski, J R, Toothacker, W S, Whitmore, J J, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, J C, McCubbin, N A, Shah, T P, Epperson, D, Heusch, C, Sadrozinski, H F W, Seiden, A, Wichmann, R, Williams, D C, Pavel, N, Abramowicz, H, Dagan, S, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kitamura, S, Nishimura, T, Arneodo, M, Cartiglia, N, Cirio, R, Costa, M, Ferrero, M I, Maselli, S, Monaco, V, Peroni, C, Ruspa, M, Sacchi, R, Solano, A, Staiano, A, Dardo, M, Bailey, D C, Fagerstroem, C P, Galea, R, Koop, T, Levman, G M, Martin, J F, Orr, R S, Polenz, S, Sabetfakhri, A, Simmons, D, Butterworth, J M, Catterall, C D, Hayes, M E, Heaphy, E A, Jones, T W, Lane, J B, West, B J, Ciborowski, J, Ciesielski, R, Grzelak, G, Nowak, R J, Pawlak, J M, Pawlak, R, Smalska, B, Tymieniecka, T, Wroblewski, A K, Zakrzewski, J A, Zarnecki, A F, Adamus, M, Gadaj, T, Deppe, O, Eisenberg, Y, Hochman, D, Karshon, U, Badgett, W F, Chapin, D, Cross, R, Foudas, C, Mattingly, S, Reeder, D D, Smith, W H, Vaiciulis, A, Wildschek, T, Wodarczyk, M, Deshpande, A, Dhawan, S, Hughes, V W, Bhadra, S, Catterall, C, Cole, J E, Frisken, W R, Hall-Wilton, R, Khakzad, M, Menary, S, and ZEUS Collaboration
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, ENERGIES, HERA, Nuclear Theory, FOS: Physical sciences, Inelastic scattering, 01 natural sciences, High Energy Physics - Experiment, CROSS-SECTIONS, Nuclear physics, High Energy Physics - Experiment (hep-ex), LEPTOPRODUCTION, 0103 physical sciences, DISTRIBUTIONS, Nuclear Experiment, 010306 general physics, QC, Physics, Quantum chromodynamics, Research Groups and Centres\Physics\Low Temperature Physics, ZEUS (particle detector), Neutral current, Faculty of Science\Physics, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, Perturbative QCD, ZEUS, LEPTON-PROTON SCATTERING, Deep inelastic scattering, QCD, High Energy Physics::Experiment
Abstract: The distribution of the azimuthal angle for the charged hadrons has been studied in the hadronic centre-of-mass system for neutral current deep inelastic positron-proton scattering with the ZEUS detector at HERA. Measurements of the dependence of the moments of this distribution on the transverse momenta of the charged hadrons are presented. Asymmetries that can be unambiguously attributed to perturbative QCD processes have been observed for the first time., Comment: 19 pages - 4 figures. Included referee's comments
Published: 2000

7. Measurement of high-$Q^2$ charged-current $e^+p$ deep inelastic scattering cross sections at HERA

Author: Breitweg, J., Chekanov, S., Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Pellegrino, A., Repond, J., Stanek, R., Yoshida, R., Mattingly, M. C. K., Abbiendi, G., Anselmo, F., Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Cara Romeo, G., Guido Castellini, Cifarelli, L., Cindolo, F., Contin, A., Coppola, N., Corradi, M., Pasquale, S., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Palmonari, F., Pesci, A., Polini, A., Sartorelli, G., Zamora Garcia, Y., Zichichi, A., Amelung, C., Bornheim, A., Brock, I., Coböken, K., Crittenden, J., Deffner, R., Eckert, M., Hartmann, H., Heinloth, K., Hilger, E., Jakob, H. -P, Kappes, A., Katz, U. F., Kerger, R., Paul, E., Rautenberg, J., Schnurbusch, H., Stifutkin, A., Tandler, J., Weber, A., Wieber, H., Bailey, D. S., Barret, O., Cottingham, W. N., Foster, B., Heath, G. P., Heath, H. F., Mcfall, J. D., Piccioni, D., Scott, J., Tapper, R. J., Capua, M., Mastroberardino, A., Schioppa, M., Susinno, G., Jeoung, H. Y., Kim, J. Y., Lee, J. H., Lim, I. T., Ma, K. J., Pac, M. Y., Caldwell, A., Cartiglia, N., Jing, Z., Liu, W., Mellado, B., Parsons, J. A., Ritz, S., Sacchi, R., Sampson, S., Sciulli, F., Zhu, Q., Chwastowski, J., Eskreys, A., Figiel, J., Klimek, K., Olkiewicz, K., Przybycień, M. B., Stopa, P., Zawiejski, L., Adamczyk, L., Bednarek, B., Jeleń, K., Kisielewska, D., Kowal, A. M., Kowalski, T., Przybycień, M., Rulikowska-Zarebska, E., Suszycki, L., Zajac, J., Dulinński, Z., Kotanński, A., Bauerdick, L. A. T., Behrens, U., Bienlein, J. K., Burgard, C., Desler, K., Drews, G., Fox-Murphy, A., Fricke, U., Goebel, F., Göttlicher, P., Graciani, R., Haas, T., Hain, W., Hartner, G. F., Hasell, D., Hebbel, K., Johnson, K. F., Kasemann, M., Koch, W., Kötz, U., Kowalski, H., Lindemann, L., Löhr, B., Martinez, M., Milewski, J., Milite, M., Monteiro, T., Moritz, M., Notz, D., Pelucchi, F., Piotrzkowski, K., Rohde, M., Saull, P. R. B., Savin, A. A., Schneekloth, U., Schwarzer, O., Selonke, F., Sievers, M., Stonjek, S., Tassi, E., Wolf, G., Wollmer, U., Youngman, C., Zeuner, W., Burow, B. D., Coldewey, C., Grabosch, H. J., Lopez-Duran Viani, A., Meyer, A., Mönig, K., Schlenstedt, S., Straub, P. B., Barbagli, G., Gallo, E., Pelfer, P., Maccarrone, G., Votano, L., Bamberger, A., Eisenhardt, S., Markun, P., Raach, H., Wölfle, S., Brook, N. H., Bussey, P. J., Doyle, A. T., Lee, S. W., Macdonald, N., Mccance, G. J., Saxon, D. H., Sinclair, L. E., Skillicorn, I. O., Strickland, E., Waugh, R., Bohnet, I., Gendner, N., Holm, U., Meyer-Larsen, A., Salehi, H., Wick, K., Garfagnini, A., Gialas, I., Gladilin, L. K., Kçira, D., Klanner, R., Lohrmann, E., Poelz, G., Zetsche, F., Bacon, T. C., Cole, J. E., Howell, G., Lamberti, L., Long, K. R., Miller, D. B., Prinias, A., Sedgbeer, J. K., Sideris, D., Tapper, A. D., Walker, R., Mallik, U., Wang, S. M., Cloth, P., Filges, D., Ishii, T., Kuze, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamauchi, K., Yamazaki, Y., Ahn, S. H., An, S. H., Hong, S. J., Lee, S. B., Nam, S. W., Park, S. K., Lim, H., Park, I. H., Son, D., Barreiro, F., Fernandez, J. P., Garcia, G., Glasman, C., Hernández, J. M., Labarga, L., Del Peso, J., Puga, J., Redondo, I., Terrón, J., Corriveau, F., Hanna, D. S., Hartmann, J., Murray, W. N., Ochs, A., Padhi, S., Riveline, M., Stairs, D. G., St-Laurent, M., Wing, M., Tsurugai, T., Bashkirov, V., Dolgoshein, B. A., Bashindzhagyan, G. L., Ermolov, P. F., Golubkov, Y. A., Khein, L. A., Korotkova, N. A., Korzhavina, I. A., Kuzmin, V. A., Lukina, O. Y., Proskuryakov, A. S., Shcheglova, L. M., Solomin, A. N., Zotkin, S. A., Bokel, C., Botje, M., Brümmer, N., Engelen, J., Koffeman, E., Kooijman, P., Sighem, A., Tiecke, H., Tuning, N., Velthuis, J. J., Verkerke, W., Vossebeld, J., Wiggers, L., Wolf, E., Acosta, D., Bylsma, B., Durkin, L. S., Gilmore, J., Ginsburg, C. M., Kim, C. L., Ling, T. Y., Nylander, P., Blaikley, H. E., Boogert, S., Cashmore, R. J., Cooper-Sarkar, A. M., Devenish, R. C. E., Edmonds, J. K., Große-Knetter, J., Harnew, N., Matsushita, T., Noyes, V. A., Quadt, A., Ruske, O., Sutton, M. R., Walczak, R., Waters, D. S., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., Dondana, S., Dosselli, U., Dusini, S., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Iannotti, L., Oh, B. Y., Okrasiński, J. R., Toothacker, W. S., Whitmore, J. J., Iga, Y., D Agostini, G., Marini, G., Nigro, A., Raso, M., Cormack, C., Hart, J. C., Mccubbin, N. A., Shah, T. P., Epperson, D., Heusch, C., Sadrozinski, H. F. -W, Seiden, A., Wichmann, R., Williams, D. C., Pavel, N., Abramowicz, H., Dagan, S., Kananov, S., Kreisel, A., Levy, A., Abe, T., Fusayasu, T., Inuzuka, M., Nagano, K., Umemori, K., Yamashita, T., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nishimura, T., Arneodo, M., Cirio, R., Costa, M., Ferrero, M. I., Maselli, S., Monaco, V., Peroni, C., Petrucci, M. C., Ruspa, M., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Fagerstroem, C. -P, Galea, R., Koop, T., Levman, G. M., Martin, J. F., Orr, R. S., Polenz, S., Sabetfakhri, A., Simmons, D., Butterworth, J. M., Catterall, C. D., Hayes, M. E., Heaphy, E. A., Jones, T. W., Lane, J. B., West, B. J., Ciborowski, J., Ciesielski, R., Grzelak, G., Nowak, R. J., Pawlak, J. M., Pawlak, R., Smalska, B., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Zarnecki, A. F., Adamus, M., Gadaj, T., Deppe, O., Eisenberg, Y., Hochman, D., Karshon, U., Badgett, W. F., Chapin, D., Cross, R., Foudas, C., Mattingly, S., Reeder, D. D., Smith, W. H., Vaiciulis, A., Wildschek, T., Wodarczyk, M., Deshpande, A., Dhawan, S., Hughes, V. W., Bhadra, S., Frisken, W. R., Hall-Wilton, R., Khakzad, M., Menary, S., Schmidke, W. B., and Zeus (IHEF, IoP, FNWI)
Subjects: Particle physics, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), FOS: Physical sciences, Weak interaction, Inelastic scattering, PROTON SCATTERING, 01 natural sciences, 7. Clean energy, JET FRAGMENTATION, High Energy Physics - Experiment, Standard Model, Nuclear physics, High Energy Physics - Experiment (hep-ex), ZEUS, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, RADIATIVE-CORRECTIONS, PARTON DISTRIBUTIONS, NUCLEON SCATTERING, BOSON PRODUCTION, EVENT GENERATOR, 0103 physical sciences, 010306 general physics, Engineering (miscellaneous), Event generator, Physics, Research Groups and Centres\Physics\Low Temperature Physics, Neutral current, 010308 nuclear & particles physics, Faculty of Science\Physics, HERA, Deep inelastic scattering, Energy (signal processing)
Abstract: The e^+p charged-current deep inelastic scattering cross sections, $d\sigma/dQ^2$ for Q^2 between 200 and 60000 GeV^2, and $d\sigma/dx$ and $d\sigma/dy$ for Q^2 > 200 GeV^2, have been measured with the ZEUS detector at HERA. A data sample of 47.7 pb^-1, collected at a center-of-mass energy of 300 GeV, has been used. The cross section $d\sigma/dQ^2$ falls by a factor of about 50000 as Q^2 increases from 280 to 30000 GeV^2. The double differential cross section $d^2\sigma/dxdQ^2$ has also been measured. A comparison between the data and Standard Model (SM) predictions shows that contributions from antiquarks ($\bar{u}$ and $\bar{c}$) and quarks (d and s) are both required by the data. The predictions of the SM give a good description of the full body of the data presented here. A comparison of the charged-current cross section $d\sigma/dQ^2$ with the recent ZEUS results for neutral-current scattering shows that the weak and electromagnetic forces have similar strengths for Q^2 above $M^2_W, M^2_Z$. A fit to the data for $d\sigma/dQ^2$ with the Fermi constant $G_F$ and $M_W$ as free parameters yields $G_F = (1.171 \pm 0.034 (stat.) ^{+0.026}_{-0.032} (syst.) ^{+0.016}_{-0.015} (PDF)) \times 10^{-5} GeV^{-2}$ and $M_W = 80.8 ^{+4.9}_{-4.5} (stat.) ^{+5.0}_{-4.3} (syst.) ^{+1.4}_{-1.3} (PDF) GeV$. Results for $M_W$, where the propagator effect alone or the SM constraint between $G_F$ and $M_W$ have been considered, are also presented., Comment: 34 pages including 10 figures and 6 tables; added tables for correlated and uncorrelated systematic uncertainties and fixed the total systematic uncertainty for dsigma/dxdQ2 (Table 4 and Figs.7-8); erratum submitted to Eur. Phys. J
Published: 2000

8. W production and the search for events with an isolated high-energy lepton and missing transverse momentum at HERA

Author: Breitweg, J, Chekanov, S, Derrick, M, Krakauer, D, Magill, S, Musgrave, B, Pellegrino, A, Repond, J, Stanek, R, Yoshida, R, Mattingly, Mck, Abbiendi, G, Anselmo, F, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, Gc, Castellini, G, Cifarelli, L, Cindolo, F, Contin, A, Coppola, N, Corradi, M, DE PASQUALE, S, Giusti, P, Iacobucci, G, Laurenti, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Polini, A, Sartorelli, G, Garcia, Yz, Zichichi, A, Amelung, C, Bornheim, A, Brock, I, Coboken, K, Crittenden, J, Deffner, R, Eckert, M, Hartmann, H, Heinloth, K, Hilger, E, Jakob, Hp, Kappes, A, Katz, Uf, Kerger, R, Paul, E, Rautenberg, J, Schnurbusch, H, Stifutkin, A, Tandler, J, Weber, A, Wieber, H, Bailey, Ds, Barret, O, Cottingham, Wn, Foster, B, Heath, Gp, Heath, Hf, Mcfall, Jd, Piccioni, D, Scott, J, Tapper, Rj, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Jeoung, Hy, Kim, Jy, Lee, Jh, Lim, It, Ma, Kj, Pac, My, Caldwell, A, Cartiglia, N, Jing, Z, Liu, W, Mellado, B, Parsons, Ja, Ritz, S, Sacchi, R, Sampson, S, Sciulli, F, Zhu, Q, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Olkiewicz, K, Przybycien, Mb, Stopa, P, Zawiejski, L, Adamczyk, L, Bednarek, B, Jelen, K, Kisielewska, D, Kowal, Am, Kowalski, T, Przybycien, M, RULIKOWSKA ZAREBSKA, E, Suszycki, L, Zajac, J, Dulinski, Z, Kotanski, A, Bauerdick, Lat, Behrens, U, Bienlein, Jk, Burgard, C, Desler, K, Drews, G, FOX MURPHY, A, Fricke, U, Goebel, F, Gottlicher, P, Graciani, R, Haas, T, Hain, W, Hartner, Gf, Hasell, D, Hebbel, K, Johnson, Kf, Kasemann, M, Koch, W, Kotz, U, Kowalski, H, Lindemann, L, Lohr, B, Martinez, M, Milewski, J, Milite, M, Monteiro, T, Moritz, M, Notz, D, Pelucchi, F, Piotrzkowski, K, Rohde, M, Saull, Prb, Savin, Aa, Schneekloth, U, Schwarzer, O, Selonke, F, Sievers, M, Stonjek, S, Tassi, E, Wolf, G, Wollmer, U, Youngman, C, Zeuner, W, Burow, Bd, Coldewey, C, Grabosch, Hj, Viani, Ald, Meyer, A, Monig, K, Schlenstedt, S, Straub, Pb, Barbagli, G, Gallo, E, Pelfer, P, Maccarrone, G, Votano, L, Bamberger, A, Eisenhardt, S, Markun, P, Raach, H, Wolfle, S, Brook, Nh, Bussey, Pj, Doyle, At, Lee, Sw, Macdonald, N, Mccance, Gj, Saxon, Dh, Sinclair, Le, Skillicorn, Io, Strickland, E, Waugh, R, Bohnet, I, Gendner, N, Holm, U, MEYER LARSEN, A, Salehi, H, Wick, K, Garfagnini, Alberto, Gialas, I, Gladilin, Lk, Kcira, D, Klanner, R, Lohrmann, E, Poelz, G, Zetsche, F, Bacon, Tc, Cole, Je, Howell, G, Lamberti, L, Long, Kr, Miller, Db, Prinias, A, Sedgbeer, Jk, Sideris, D, Tapper, Ad, Walker, R, Mallik, U, Wang, Sm, Cloth, P, Filges, D, Ishii, T, Kuze, M, Suzuki, I, Tokushuku, K, Yamada, S, Yamauchi, K, Yamazaki, Y, Ahn, Sh, An, Sh, Hong, Sj, Lee, Sb, Nam, Sw, Park, Sk, Lim, H, Park, Ih, Son, D, Barreiro, F, Fernandez, Jp, Garcia, G, Glasman, C, Hernandez, Jm, Labarga, L, DEL PESO, J, Puga, J, Redondo, I, Terron, J, Corriveau, F, Hanna, Ds, Hartmann, J, Murray, Wn, Ochs, A, Padhi, S, Riveline, M, Stairs, Dg, ST LAURENT, M, Wing, M, Tsurugai, T, Bashkirov, V, Dolgoshein, Ba, Bashindzhagyan, Gl, Ermolov, Pf, Golubkov, Ya, Khein, La, Korotkova, Na, Korzhavina, Ia, Kuzmin, Va, Lukina, Oy, Proskuryakov, As, Shcheglova, Lm, Solomin, An, Zotkin, Sa, Bokel, C, Botje, M, Brummer, N, Engelen, J, Koffeman, E, Kooijman, P, VAN SIGHEM, A, Tiecke, H, Tuning, N, Velthuis, Jj, Verkerke, W, Vossebeld, J, Wiggers, L, DE WOLF, E, Acosta, D, Bylsma, B, Durkin, Ls, Gilmore, J, Ginsburg, Cm, Kim, Cl, Ling, Ty, Nylander, P, Blaikley, He, Boogert, S, Cashmore, Rj, COOPER SARKAR AM, Devenish, Rce, Edmonds, Jk, GROSSE KNETTER, J, Harnew, N, Matsushita, T, Noyes, Va, Quadt, A, Ruske, O, Sutton, Mr, Walczak, R, Waters, Ds, Bertolin, A, Brugnera, Riccardo, Carlin, Roberto, DAL CORSO, F, Dondana, S, Dosselli, U, Dusini, S, Limentani, S, Morandin, M, Posocco, M, Stanco, L, Stroili, Roberto, Voci, C, Iannotti, L, Oh, By, Okrasinski, Jr, Toothacker, Ws, Whitmore, Jj, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Raso, M, Cormack, C, Hart, Jc, Mccubbin, Na, Shah, Tp, Epperson, D, Heusch, C, Sadrozinski, Hfw, Seiden, A, Wichmann, R, Williams, Dc, Pavel, N, Abramowicz, H, Dagan, S, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Inuzuka, M, Nagano, K, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Homma, K, Kitamura, S, Nishimura, T, Arneodo, M, Cirio, R, Costa, M, Ferrero, Mi, Maselli, S, Monaco, V, Peroni, C, Petrucci, Mc, Ruspa, M, Solano, A, Staiano, A, Dardo, M, Bailey, Dc, Fagerstroem, Cp, Galea, R, Koop, T, Levman, Gm, Martin, Jf, Orr, Rs, Polenz, S, Sabetfakhri, A, Simmons, D, Butterworth, Jm, Catterall, Cd, Hayes, Me, Heaphy, Ea, Jones, Tw, Lane, Jb, West, Bj, Ciborowski, J, Ciesielski, R, Grzelak, G, Nowak, Rj, Pawlak, Jm, Pawlak, R, Smalska, B, Tymieniecka, T, Wroblewski, Ak, Zakrzewski, Ja, Zarnecki, Af, Adamus, M, Gadaj, T, Deppe, O, Eisenberg, Y, Hochman, D, Karshon, U, Badgett, Wf, Chapin, D, Cross, R, Foudas, C, Mattingly, S, Reeder, Dd, Smith, Wh, Vaiciulis, A, Wildschek, T, Wodarczyk, M, Deshpande, A, Dhawan, S, Hughes, Vw, Bhadra, S, Frisken, Wr, HALL WILTON, R, Khakzad, M, Menary, S, Schmidke, Wb, CA ZEUS COLLABORATION, and Zeus (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, Proton, Hadron, FOS: Physical sciences, ZEUS, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, JET FRAGMENTATION, BOSON PRODUCTION, GAMMA COUPLINGS, E+E-PHYSICS, CONSTRUCTION, DESIGN, PROTON, 7. Clean energy, 01 natural sciences, Zeus (malware), High Energy Physics - Experiment, Standard Model, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, 010306 general physics, QC, Boson, Physics, Research Groups and Centres\Physics\Low Temperature Physics, Luminosity (scattering theory), Faculty of Science\Physics, 010308 nuclear & particles physics, HERA, High Energy Physics::Experiment, Lepton
Abstract: A search for the leptonic decays of W bosons produced in the reaction e^+ p\to e^+ W^\pm X at a centre-of-mass energy of 300 GeV has been performed with the ZEUS detector at HERA using an integrated luminosity of 47.7 pb^-1 . Three events consistent with W\to e\nu decay are found, giving a cross section of 0.9 +1.0 -0.7 \pm 0.2 pb, in good agreement with the Standard Model prediction. The corresponding 95% C.L. upper limit on the cross section is 3.3 pb. A search for the decay W\to \mu\nu has a smaller selection efficiency and yields no candidate events. Limits on the cross section for W production with large hadronic transverse momentum have been obtained. A search for high-transverse-momentum isolated tracks in events with large missing transverse momentum yields results in good agreement with Standard Model expectations, in contrast to a recent report by the H1 collaboration of the observation of an excess of such events., Comment: 17 pages including 7 figures and 2 tables, final version for Phys.Lett
Published: 2000

9. Angular correlations in three-jet events inepcollisions at HERA

Author: A. Raval, Ie. Korol, I. A. Korzhavina, P. Roloff, U. Karshon, Danuta Kisielewska, G. Susinno, T. P. Stewart, P.F. Ermolov, M. Arneodo, Robert Ciesielski, L. M. Shcheglova, B. B. Levchenko, C. Youngman, A. Longhin, Alessandro Polini, P. Stopa, I. Gialas, A. E. Nuncio-Quiroz, J. Grebenyuk, A. Nigro, N. Brümmer, R. Ingbir, R. Yoshida, James Ferrando, P. Göttlicher, O. Behnke, Allen Caldwell, J. Schwartz, G. Grzelak, M. Ruspa, L. Wiggers, E. Gallo, Massimo Corradi, Zainol Abidin Ibrahim, A.S. Proskuryakov, V. Sosnovtsev, J. F. Martin, Ada Solano, T. Namsoo, V. Bokhonov, A. Keramidas, Marcello Bindi, B. Pawlik, Edouard Boos, M. Derrick, T. Tymieniecka, A.G. Yagües-Molina, Masahiro Kuze, Iwona Grabowska-Bold, Tobias M. Haas, D. Gladkov, Antonio Pellegrino, A. N. Barakbaev, V. Schönberg, A. Zichichi, Claire Gwenlan, A.G. Robertson, Mariusz Przybycien, O. Viazlo, F. Januschek, D. Notz, J. M. Pawlak, Z. L. Ren, D.D. Reeder, Kenneth Long, Marco Schioppa, S. Magill, Uta Klein, W. H. Smith, P. G. Pelfer, S. Limentani, J. Del Peso, Y. Ning, J. Repond, D.S. Zotkin, J. Maeda, Yuji Yamazaki, Igor Katkov, C. Zhou, Ramoona Shehzadi, B. Löhr, Denys Lontkovskyi, Marcin Pawel Guzik, A. Stern, Takuya Nobe, A. Parenti, Guenter Wolf, A. Garfagnini, C. D. Catterall, R. J. Nowak, R. Aggarwal, I. Singh, T. Tsurugai, B.O. Zhautykov, Marco Costa, Y. Iga, F. Mohamad Idris, Mykhailo Lisovyi, H.-P. Jakob, K. Oliver, Claudia Glasman, V. Drugakov, Achim Geiser, E. Brownson, W. Perlanski, R.C.E. Devenish, U. Samson, John Hart, B. Brzozowska, Fernando Barreiro, R. Brugnera, O. Yu. Lukina, B. Reisert, Kerstin Borras, T. W. Jones, M.C.K. Mattingly, Juan Terron, Lorenzo Bellagamba, Luca Stanco, Lev Khein, Enrico Tassi, J. J. Whitmore, Dong-Chul Son, J. Tomaszewska, Wojciech Slominski, L. S. Durkin, T. Schörner-Sadenius, Katsuo Tokushuku, S.I. Suchkov, R. Mankel, Wolfgang Lohmann, Graziano Bruni, Oleg Kuprash, J. Szuba, K. Wrona, D. H. Saxon, Orel Gueta, Andrii Verbytskyi, I. Rubinsky, H. Tiecke, S. Antonelli, R. Hamatsu, O. Bachynska, M. Jüngst, Ben Bylsma, D. Szuba, Janusz Chwastowski, Els Koffeman, E. Lohrmann, C. Blohm, Jan Figiel, S. Kananov, S. Fazio, Peter Schleper, G. Hartner, H. Hartmann, S. De Pasquale, V. Aushev, Francois Corriveau, Vladyslav Libov, B. Foster, I. Kadenko, S. Dusini, Grzegorz Gach, M. Adamus, Leszek Adamczyk, Didar Dobur, D. Bot, G. Marini, E. Paul, Shima Shimizu, Wolfram Dietrich Zeuner, A. Bamberger, Alessia Bruni, M.I. Ferrero, Alexander Spiridonov, Ulf Behrens, I. A. Melzer-Pellmann, N. Okazaki, A. Kotański, F. Karstens, E. Hilger, H. Kowalski, Tomasz Bold, Matthew Forrest, Ian Brock, G. Bari, F. J. Sciulli, Y. Aushev, Halina Abramowicz, Alessandro Montanari, F. Cindolo, John Morris, W. A. T. Wan Abdullah, B.Y. Oh, Alexander Tapper, J. Y. Kim, Pietro Antonioli, S. Bhadra, A. Hüttmann, N. Zhmak, Luisa Cifarelli, R. K. Dementiev, K. Mujkic, A. Contin, Alexander Savin, S. Fang, N.S. Pokrovskiy, B. Musgrave, Ewelina Lobodzinska, O. Zenaiev, I. Makarenko, Hartmut Stadie, Valentina Sola, A. Margotti, Zukhaimira Zolkapli, N. Coppola, K. Olkiewicz, H. Wolfe, L. Suszycki, Sebastian Mergelmeyer, Roberto Sacchi, Ingrid-Maria Gregor, Peter Bussey, U. Schneekloth, Anna Mastroberardino, A. Antonov, Masaki Ishitsuka, R. Hori, M. Jimenez, I. O. Skillicorn, Aharon Levy, Amanda Cooper-Sarkar, K. Piotrzkowski, S. Kitamura, M. Zolko, W. B. Schmidke, R. Nania, T. Kanno, Hanno Perrey, G. Dolinska, T. Theedt, Yu. A. Golubkov, K. Papageorgiu, J. Malka, F. Dal Corso, Yu. Onishchuk, U. Noor, Marcella Capua, P. Kooijman, N.N. Vlasov, M. Wlasenko, Silvia Miglioranzi, S. Yamada, Alessandro Bertolin, G. Grigorescu, I. Abt, Boris Dolgoshein, V. Monaco, W. Hain, A. Eskreys, Pawel Plucinski, Janna Katharina Behr, A. F. Żarnecki, Y.D. Ri, A. Galas, A. Salii, D. Hochman, O. Volynets, S. Schlenstedt, L. Zawiejski, M. Turcato, Kunihiro Nagano, G. D'Agostini, M. Vázquez, P. Kaur, Kyrylo Bondarenko, T. Y. Ling, M. Basile, O. Gogota, O. Tomalak, U. Kötz, Robert Klanner, A. Stifutkin, Y. Eisenberg, K. Horton, J. Ciborowski, Giuseppe Barbagli, A. T. Doyle, Manjit Kaur, Matthew Wing, G. Sartorelli, Leonid Gladilin, Roman Walczak, Davide Boscherini, N. Bartosik, J. Sztuk-Dambietz, Sergei Chekanov, Dirk-Uwe Bartsch, B. Kahle, Roberto Carlin, A. Lee, Zeus (IHEF, IoP, FNWI), Precision Frontier, UAM. Departamento de Física Teórica, H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, and D.S. ZOTKIN
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, ZEUS, DEEP-INELASTIC-SCATTERING, TRIPLE-GLUON VERTEX, QCD COLOR FACTORS, CENTRAL TRACKING DETECTOR, 4-JET FINAL-STATES, LEPTON-NUCLEON SCATTERING, ZEUS BARREL CALORIMETER, C-A/C-F, PARTON DISTRIBUTIONS, FOS: Physical sciences, ep collisions, Symmetry group, Jet (particle physics), 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, ddc:530, 010306 general physics, Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Scattering, Física, Perturbative QCD, HERA, Deep inelastic scattering, Symmetry (physics), Three-jet production, High Energy Physics::Experiment, ZEUS experiment
Abstract: Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM, Three-jet production in deep inelastic ep scattering and photoproduction was investigated with the ZEUS detector at HERA using an integrated luminosity of up to 127pb-1. Measurements of differential cross sections are presented as functions of angular correlations between the three jets in the final state and the proton-beam direction. These correlations provide a stringent test of perturbative QCD and show sensitivity to the contributions from different color configurations. Fixed-order perturbative calculations assuming the values of the color factors CF, CA, and TF as derived from a variety of gauge groups were compared to the measurements to study the underlying gauge group symmetry. The measured angular correlations in the deep inelastic ep scattering and photoproduction regimes are consistent with the admixture of color configurations as predicted by SU(3) and disfavour other symmetry groups, such as SU(N) in the limit of large N, This work was supported by the U.S. Department of Energy, the Italian National Institute for Nuclear Physics (INFN), the German Federal Ministry for Education and Research (BMBF) under Contract No. H09PDF, No. 05h09GUF, and the SFB 676 of the Deutsche Forschungsgemeinschaft (DFG); DESY, Germany; the Science and Technology Facilities Council, United Kingdom; an FRGS grant from the Malaysian government; Presidential grant N-4142.2010.2 for Leading Scientific Schools, by the Russian Ministry of Education and Science through its grant for Scientific Research on High Energy Physics and under Contract No. 02.740.11.0244; the Netherlands Foundation for Research on Matter (FOM); the Israel Science Foundation; the Max Planck Institute for Physics, Munich, Germany; MEIN research grant No. 1 P03B 04529 (2005–2008), Poland; Warsaw University, Poland; the Russian Foundation for Basic Research, Grant 11-02- 91345-DFG_a; the Polish Ministry of Science and Higher Education as a scientific project No. DPN/N188/DESY/ 2009 and its grants for Scientific Research; the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and its grants for Scientific Research; the Korean Ministry of Education and Korea Science and Engineering Foundation; FNRS and its associated funds (IISN and FRIA) and by an Inter-University Attraction Poles Programme subsidized by the Belgian Federal Science Policy Office; the Spanish Ministry of Education and Science through funds provided by CICYT; the Natural Sciences and Engineering Research Council of Canada (NSERC); and the U.S. National Science Foundation
Published: 2012

10. Scaled Momentum Spectra in deep inelastic Scattering at HERA

Author: Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Antonelli, S., Antonioli, P., Antonov, A., Arneodo, M., Aushev, V., Aushev, Y., Bachynska, O., Bamberger, A., Barakbaev, A. N., Barbagli, G., Bari, G., Barreiro, F., Bartsch, D., Basile, M., Behnke, O., Behr, J., Behrens, U., Bellagamba, L., Bertolin, A., Bhadra, S., Bindi, M., Blohm, C., Bold, T., Boos, E. G., Borodin, M., Borras, K., Boscherini, D., Bot, D., Boutle, S. K., Brock, I., Brownson, E., Brugnera, R., Brummer, N., Bruni, A., Bruni, G., Brzozowska, B., Bussey, P. J., Butterworth, J. M., Bylsma, B., Caldwell, A., Capua, M., Carlin, R., Catterall, C. D., Chekanov, S., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cifarelli, L., Cindolo, F., Contin, A., Cooper Sarkar, A. M., Coppola, N., Corradi, M., Corriveau, F., Costa, Marco, D'Agostini, G., Corso, F. D., Favereau, J. d., Peso, J. d., Dementiev, R. K., Pasquale, S. D., Derrick, M., Devenish, R. C. E., Dobur, D., Dolgoshein, B. A., Doyle, A. T., Drugakov, V., Durkin, L. S., Dusini, S., Eisenberg, Y., Ermolov, P. F., Eskreys, A., Fang, S., Fazio, S., Ferrando, J., Ferrero, Maria Italia, Figiel, J., Forrest, M., Foster, B., Fourletov, S., Galas, A., Gallo, E., Garfagnini, A., Geiser, A., Gialas, I., Gladilin, L. K., Gladkov, D., Glasman, C., Gogota, O., Golubkov, Y. A., Gottlicher, P., Grabowska Bold, I., Grebenyuk, J., Gregor, I., Grigorescu, G., Grzelak, G., Gwenlan, C., Haas, T., Hain, W., Hamatsu, R., Hart, J. C., Hartmann, H., Hartner, G., Hilger, E., Hochman, D., Holm, U., Hori, R., Horton, K., Huttmann, A., Iacobucci, G., Ibrahim, Z. A., Iga, Y., Ingbir, R., Ishitsuka, M., Jakob, H. P., Januschek, F., Jimenez, M., Jones, T. W., Jungst, M., Kadenko, I., Kahle, B., Kamaluddin, B., Kananov, S., Kanno, T., Karshon, U., Karstens, F., Katkov, I. I., Kaur, M., Kaur, P., Keramidas, A., Khein, L. A., Kim, J. Y., Kisielewska, D., Kitamura, S., Klanner, R., Klein, U., Koffeman, E., Kollar, D., Kooijman, P., Korol, I., Korzhavina, I. A., Kotanski, A., Kotz, U., Kowalski, H., Kulinski, P., Kuprash, O., Kuze, M., Kuzmin, V. A., Lee, A., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Ling, T. Y., Lisovyi, M., Lobodzinska, E., Lohmann, W., Lohr, B., Lohrmann, E., Loizides, J. H., Long, K. R., Longhin, A., Lontkovskyi, D., Lukasik, J., Lukina, O. Y., Luzniak, P., Maeda, J., Magill, S., Makarenko, I., Malka, J., Mankel, R., Margotti, A., Marini, G., Martin, J. F., Mastroberardino, A., Matsumoto, T., Mattingly, M. C. K., Melzer Pellmann, I. A., Miglioranzi, S., Idris, F. M., Monaco, Vincenzo, Montanari, A., Morris, J. D., Musgrave, B., Nagano, K., Namsoo, T., Nania, R., Nicholass, D., Nigro, A., Ning, Y., Noor, U., Notz, D., Nowak, R. J., Nuncio Quiroz, A. E., B. Y., Oh, Okazaki, N., Oliver, K., Olkiewicz, K., Onishchuk, Y., Ota, O., Papageorgiu, K., Parenti, A., Paul, E., Pawlak, J. M., Pawlik, B., Pelfer, P. G., Pellegrino, A., Perlanski, W., Perrey, H., Piotrzkowski, K., Plucinski, P., Pokrovskiy, N. S., Polini, A., Proskuryakov, A. S., Przybycien, M., Raval, A., Reeder, D. D., Reisert, B., Ren, Z., Repond, J., Y. D., Ri, Robertson, A., Roloff, P., Ron, E., Rubinsky, I., Ruspa, M., Sacchi, Roberto, Salii, A., Samson, U., Sartorelli, G., Savin, A. A., Saxon, D. H., Schioppa, M., Schlenstedt, S., Schleper, P., Schmidke, W. B., Schneekloth, U., Schonberg, V., Schorner Sadenius, T., Schwartz, J., Sciulli, F., Shcheglova, L. M., Shehzadi, R., Shimizu, S., Singh, I., Skillicorn, I. O., Slominski, W., Smith, W. H., Sola, Valentina, Solano, Ada Maria, Solomin, A., Son, D., Sosnovtsev, V., Spiridonov, A., Stadie, H., Stanco, L., Stern, A., Stewart, T. P., Stifutkin, A., Stopa, P., Suchkov, S., Susinno, G., Suszycki, L., Sztuk, J., Szuba, D., Szuba, J., Tapper, A. D., Tassi, E., Terron, J., Theedt, T., Tiecke, H., Tokushuku, K., Tomalak, O., Tomaszewska, J., Tsurugai, T., Turcato, M., Tymieniecka, T., Uribe Estrada, C., Vazquez, M., Verbytskyi, A., Viazlo, V., Vlasov, N. N., Volynets, O., Walczak, R., Abdullah, W. A. T. W., Whitmore, J. J., Whyte, J., Wiggers, L., Wing, M., Wlasenko, M., Wolf, G., Wolfe, H., Wrona, K., Yagues Molina, A. G., Yamada, S., Yamazaki, Y., Yoshida, R., Youngman, C., Zarnecki, A. F., Zawiejski, L., Zenaiev, O., Zeuner, W., Zhautykov, B. O., Zhmak, N., Zhou, C., Zichichi, A., Zolko, M., Zotkin, D. S., Collaboration, Z., Precision Frontier, H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWAL, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, T. BOLD, E.G. BOOS, M. BORODIN, K. BORRAS, D. BOSCHERINI, D. BOT, S.K. BOUTLE, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, J.M. BUTTERWORTH, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DE FAVEREAU, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, U. HOLM, R. HORI, K. HORTON, A. HÜTTMANN, G. IACOBUCCI, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, D. KOLLAR, P. KOOIJMAN, IE.KOROL, I.A. KORZHAVINA, A. KOTA´NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, V.A. KUZMIN, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, J.H. LOIZIDES, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LUZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, T. MATSUMOTO, M.C.K. MATTINGLY, I.-A. MELZER-PELLMANN, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, O. OTA, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, V. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J. WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H.WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, M. ZOLKO, D.S. ZOTKIN, Z. ZULKAPLI, and Zeus (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, FRAGMENTATION FUNCTIONS, Electron–positron annihilation, HERA, Lepton-Nucleon Scattering, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, 0103 physical sciences, ddc:530, PARTICLE-PRODUCTION, 010306 general physics, Physics, Annihilation, Neutral current, 010308 nuclear & particles physics, Scattering, BREIT FRAME, ZEUS BARREL CALORIMETER, E+E-ANNIHILATION, Deep inelastic scattering, CENTRAL TRACKING DETECTOR, Charged particle, SCALING VIOLATIONS, QCD CASCADES, REAR CALORIMETER, Pseudorapidity, High Energy Physics::Experiment
Abstract: Charged particle production has been studied in neutral current deep inelastic ep scattering with the ZEUS detector at HERA using an integrated luminosity of 0.44 fb^-1. Distributions of scaled momenta in the Breit frame are presented for particles in the current fragmentation region. The evolution of these spectra with the photon virtuality, Q^2, is described in the kinematic region 10, Comment: 44 pages, 11 figures, 21 tables
Published: 2010

11. Measurement of high-Q(2) neutral current deep inelastic e(-) p scattering cross sections with a longitudinally polarised electron beam at HERA

Author: Chekanov, S, Derrick, M, Magill, S, Musgrave, B, Nicholass, D, Repond, J, Yoshida, R, Mattingly, MCK, Antonioli, P, Bari, G, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Cindolo, F, Corradi, M, Iacobucci, G, Margotti, A, Nania, R, Polini, A, Antonelli, S, Basile, M, Bindi, M, Cifarelli, L, Contin, A, De Pasquale, S, Sartorelli, G, Zichichi, A, Bartsch, D, Brock, I, Hartmann, H, Hilger, E, Jakob, HP, Juengst, M, Nuncio-Quiroz, AE, Paul, E, Samson, U, Schoenberg, V, Shehzadi, R, Wlasenko, M, Brook, NH, Heath, GP, Morris, JD, Kaur, M, Kaur, P, Singh, I, Capua, M, Fazio, S, Mastroberardino, A, Schioppa, M, Susinno, G, Tassi, E, Kim, JY, Ibrahim, ZA, Mohamad Idris, F, Kamaluddin, B, Wan Abdullah, WAT, Ning, Y, Ren, Z, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Galas, A, Olkiewicz, K, Pawlik, B, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, Grabowska-Bold, I, Kisielewska, D, Lukasik, J, Przybycien, M, Suszycki, L, Kotanski, A, Slominski, W, Behnke, O, Behrens, U, Blohm, C, Bonato, A, Borras, K, Bot, D, Ciesielski, R, Coppola, N, Fang, S, Fourletova, J, Geiser, A, Goettlicher, P, Grebenyuk, J, Gregor, I, Haas, T, Hain, W, Huettmann, A, Januschek, F, Kahle, B, Katkov, II, Klein, U, Koetz, U, Kowalski, H, Lisovyi, M, Lobodzinska, E, Loehr, B, Mankel, R, Melzer-Pellmann, I-A, Miglioranzi, S, Montanari, A, Namsoo, T, Notz, D, Parenti, A, Rinaldi, L, Roloff, P, Rubinsky, I, Schneekloth, U, Spiridonov, A, Szuba, D, Szuba, J, Theedt, T, Ukleja, J, Wolf, G, Wrona, K, Molina, AGY, Youngman, C, Zeuner, W, Drugakov, V, Lohmann, W, Schlenstedt, S, Barbagli, G, Gallo, E, Pelfer, PG, Bamberger, A, Dobur, D, Karstens, F, Vlasov, NN, Bussey, PJ, Doyle, AT, Dunne, W, Forrest, M, Rosin, M, Saxon, DH, Skillicorn, IO, Gialas, I, Papageorgiu, K, Holm, U, Klanner, R, Lohrmann, E, Perrey, H, Schleper, P, Schoerner-Sadenius, T, Sztuk, J, Stadie, H, Turcato, M, Foudas, C, Fry, C, Long, KR, Tapper, AD, Matsumoto, T, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, AN, Boos, EG, Pokrovskiy, NS, Zhautykov, BO, Aushev, V, Bachynska, O, Borodin, M, Kadenko, I, Kozulia, A, Libov, V, Lontkovskyi, D, Makarenko, I, Sorokin, I, Verbytskyi, A, Volynets, O, Son, D, de Favereau, J, Piotrzkowski, K, Barreiro, F, Glasman, C, Jimenez, M, Labarga, L, del Peso, J, Ron, E, Soares, M, Terron, J, Uribe-Estrada, C, Zambrana, M, Corriveau, F, Liu, C, Schwartz, J, Walsh, R, Zhou, C, Tsurugai, T, Antonov, A, Dolgoshein, BA, Gladkov, D, Sosnovtsev, V, Stifutkin, A, Suchkov, S, Dementiev, RK, Ermolov, PF, Gladilin, LK, Golubkov, YA, Khein, LA, Korzhavina, IA, Kuzmin, VA, Levchenko, BB, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Zotkin, DS, Abt, I, Caldwell, A, Kollar, D, Reisert, B, Schmidke, WB, Grigorescu, G, Keramidas, A, Koffeman, E, Kooijman, P, Pellegrino, A, Tiecke, H, Vazquez, M, Wiggers, L, Bruemmer, N, Bylsma, B, Durkin, LS, Lee, A, Ling, TY, Allfrey, PD, Bell, MA, Cooper-Sarkar, AM, Devenish, RCE, Ferrando, J, Foster, B, Gwenlan, C, Horton, K, Oliver, K, Robertson, A, Walczak, R, Bertolin, A, Dal Corso, F, Dusini, S, Longhin, A, Stanco, L, Bellan, P, Brugnera, R, Carlin, R, Garfagnini, A, Limentani, S, Oh, BY, Raval, A, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cole, JE, Hart, JC, Abramowicz, H, Ingbir, R, Kananov, S, Levy, A, Stern, A, Kuze, M, Maeda, J, Hori, R, Kagawa, S, Okazaki, N, Shimizu, S, Tawara, T, Hamatsu, R, Kaji, H, Kitamura, S, Ota, O, Ri, YD, Costa, M, Ferrero, MI, Monaco, V, Sacchi, R, Sola, V, Solano, A, Arneodo, M, Ruspa, M, Fourletov, S, Martin, JF, Stewart, TP, Boutle, SK, Butterworth, JM, Jones, TW, Loizides, JH, Wing, M, Brzozowska, B, Ciborowski, J, Grzelak, G, Kulinski, P, Luzniak, P, Malka, J, Nowak, RJ, Pawlak, JM, Perlanski, W, Tymieniecka, T, Zarnecki, AF, Adamus, M, Plucinski, P, Ukleja, A, Eisenberg, Y, Hochman, D, Karshon, U, Brownson, E, Reeder, DD, Savin, AA, Smith, WH, Wolfe, H, Bhadra, S, Catterall, CD, Cui, Y, Hartner, G, Menary, S, Noor, U, Standage, J, Whyte, J, Collaboration, ZEUS, S. CHEKANOV, M. DERRICK, S. MAGILL, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, P. ANTONIOLI, G. BARI, L. BELLAGAMBA, D. BOSCHERINI, A. BRUNI, G. BRUNI, F. CINDOLO, M. CORRADI, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, S. ANTONELLI, M. BASILE, M. BINDI, L. CIFARELLI, A. CONTIN, S. DE PASQUALE, G. SARTORELLI, A. ZICHICHI, D. BARTSCH, I. BROCK, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JÜNGST, A.E. NUNCIO-QUIROZ, E. PAUL, U. SAMSON, V. SCHÖNBERG, R. SHEHZADI, M. WLASENKO, J.D. MORRIS, M. KAUR, P. KAUR, I. SINGH, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, Z.A. IBRAHIM, F. MOHAMAD IDRIS, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, K. OLKIEWICZ, B. PAWLIK, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, O. BEHNKE, J. BEHR, U. BEHRENS, C. BLOHM, K. BORRAS, D. BOT, R. CIESIELSKI, N. COPPOLA, S. FANG, A. GEISER, P. GÖTTLICHER, J. GREBENYUK, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, A. HÜTTMANN, J. JANUSCHEK, B. KAHLE, I.I. KATKOV, U. KLEIN, U. KÖTZ, H. KOWALSKI, M. LISOVYI, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I.-A. MELZER-PELLMANN, S. MIGLIORANZI, A. MONTANARI, T. NAMSOO, D. NOTZ, A. PARENTI, P. ROLOFF, I. RUBINSKY, U. SCHNEEKLOTH, A. SPIRIDONOV, D. SZUBA, J. SZUBA, T. THEEDT, G. WOLF, K. WRONA, A.G. YAGUES MOLINA, C. YOUNGMAN, W. ZEUNER, V. DRUGAKOV, W. LOHMANN, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, M. FORREST, M. ROSIN, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, K. PAPAGEORGIU, U. HOLM, R. KLANNER, E. LOHRMANN, H. PERREY, P. SCHLEPER, T. SCHORNER-SADENIUS, J. SZTUK, H.STADIE, M. TURCATO, K.R. LONG, A.D. TAPPER, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, N.S. POKROVSKIY, B.O. ZHAUTYKOV, V. AUSHEV, O. BACHYNSKA, M. BORODIN, I. KADENKO, A. KOZULIA, V. LIBOV, D. LONTKOVSKYI, I. MAKARENKO, IU. SOROKIN, A. VERBYTSKYI, O. VOLYNETS, M. ZOLKO, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, J. DEL PESO, E. RON, J. TERRON, C. URIBE-ESTRADA, F. CORRIVEAU, J. SCHWARTZ, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, D. GLADKOV, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F.ERMOLOV, L.K. GLADILIN, YU.A. GOLUBKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A.KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, I. ABT, A. CALDWELL, D. KOLLAR, B. REISERT, W.B. SCHMIDKE, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, A.M. COOPER-SARKAR, R.C.E. DEVENISH, J. FERRANDO, B.FOSTER, C. GWENLAN, K. HORTON, K. OLIVER, A. ROBERTSON, R. WALCZAK, A. BERTOLIN, R. BRUGNERA, R. CARLIN, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, B.Y. OH, A. RAVAL, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.C. HART, H. ABRAMOWICZ, R. INGBIR, S. KANANOV, A. LEVY, A. STERN, M. ISHITSUKA, T. KANNO, M. KUZE, J. MAEDA, R. HORI, S. KAGAWA, N. OKAZAKI, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.COSTA, M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, V. SOLA, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, T.P. STEWART, S.K. BOUTLE, J.M. BUTTERWORTH, T.W. JONES, J.H. LOIZIDES, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J.NOWAK, J.M. PAWLAK, W. PERLANSKI, T. TYMIENIECKA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, D. HOCHMAN, U. KARSHON, E. BROWNSON, D.D. REEDER, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, G. HARTNER, U. NOOR, J. WHYTE., and Zeus (IHEF, IoP, FNWI)
Subjects: LOW X, MONTE-CARLO GENERATOR, Photon, Physics and Astronomy (miscellaneous), media_common.quotation_subject, HERA, FOS: Physical sciences, Electron, 01 natural sciences, Asymmetry, JET FRAGMENTATION, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, NUCLEON SCATTERING, EVENT GENERATOR, 0103 physical sciences, ddc:530, QCD ANALYSIS, PROTON COLLISIONS, 010306 general physics, Engineering (miscellaneous), media_common, Event generator, Physics, E+E-PHYSICS, Neutral current, 010308 nuclear & particles physics, Scattering, ZEUS BARREL CALORIMETER, Deep inelastic scattering, CENTRAL TRACKING DETECTOR, High Energy Physics::Experiment, Atomic physics
Abstract: Measurements of the neutral current cross sections for deep inelastic scattering in e^- p collisions at HERA with a longitudinally polarised electron beam are presented. The single-differential cross-sections dsigma/dQ^2, dsigma/dx and dsigma/dy and the double-differential cross sections in Q^2 and x are measured in the kinematic region y < 0.9 and Q^2 > 185 GeV^2 for both positively and negatively polarised electron beams and for each polarisation state separately. The measurements are based on an integrated luminosity of 169.9 pb^-1 taken with the ZEUS detector in 2005 and 2006 at a centre-of-mass energy of 318 GeV. The structure functions xF_3 and xF_3^{��Z} are determined by combining the e^- p results presented in this paper with previously measured e^+ p neutral current data. The asymmetry parameter A^- is used to demonstrate the parity violating effects of electroweak interactions at large spacelike photon virtuality. The measurements agree well with the predictions of the Standard Model., 55 pages, 9 figures, 19 tables
Published: 2009

12. Measurement of charm and beauty production in deep inelastic ep scattering from decays into muons at HERA

Author: Chekanov, S., Derrick, M., Magill, S., Musgrave, B., Nicholass, D., Repond, J., Yoshida, R., Mattingly, M. C. K., Antonioli, P., Bari, G., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Cindolo, F., Corradi, M., Iacobucci, G., Margotti, A., Nania, R., Polini, A., Antonelli, S., Basile, M., Bindi, M., Cifarelli, L., Contin, A., Pasquale, S. D., Sartorelli, G., Zichichi, A., Bartsch, D., Brock, I., Hartmann, H., Hilger, E., Jakob, H. P., Jungst, M., Nuncio Quiroz, A. E., Paul, E., Samson, U., Schonberg, V., Shehzadi, R., Wlasenko, M., Brook, N. H., Heath, G. P., Morris, J. D., Kaur, M., Kaur, P., Singh, I., Capua, M., Fazio, S., Mastroberardino, A., Schioppa, M., Susinno, G., Tassi, E., Kim, J. Y., Ibrahim, Z. A., Idris, F. M., Kamaluddin, B., Abdullah, W. A. T. W., Ning, Y., Ren, Z., Sciulli, F., Chwastowski, J., Eskreys, A., Figiel, J., Galas, A., Olkiewicz, K., Pawlik, B., Stopa, P., Zawiejski, L., Adamczyk, L., Bold, T., Grabowska Bold, I., Kisielewska, D., Lukasik, J., Przybycien, M., Suszycki, L., Kotanski, A., Slominski, W., Behnke, O., Behr, J., Behrens, U., Blohm, C., Borras, K., Bot, D., Ciesielski, R., Coppola, N., Fang, S., Geiser, A., Gottlicher, P., Grebenyuk, J., Gregor, I., Haas, T., Hain, W., Huttmann, A., Januschek, F., Kahle, B., Katkov, I. I., Klein, U., Kotz, U., Kowalski, H., Lisovyi, M., Lobodzinska, E., Lohr, B., Mankel, R., Melzer Pellmann, I. A., Miglioranzi, S., Montanari, A., Namsoo, T., Notz, D., Parenti, A., Roloff, P., Rubinsky, I., Schneekloth, U., Spiridonov, A., Szuba, D., Szuba, J., Theedt, T., Tomaszewska, J., Wolf, G., Wrona, K., Yagues Molina, A. G., Youngman, C., Zeuner, W., Drugakov, V., Lohmann, W., Schlenstedt, S., Barbagli, G., Gallo, E., Pelfer, P. G., Bamberger, A., Dobur, D., Karstens, F., Vlasov, N. N., Bussey, P. J., Doyle, A. T., Forrest, M., Saxon, D. H., Skillicorn, I. O., Gialas, I., Papageorgiu, K., Holm, U., Klanner, R., Lohrmann, E., Perrey, H., Schleper, P., Schorner Sadenius, T., Sztuk, J., Stadie, H., Turcato, M., Foudas, C., Fry, C., Long, K. R., Tapper, A. D., Matsumoto, T., Nagano, K., Tokushuku, K., Yamada, S., Yamazaki, Y., Barakbaev, A. N., Boos, E. G., Pokrovskiy, N. S., Zhautykov, B. O., Aushev, V., Bachynska, O., Borodin, M., Kadenko, I., Kuprash, O., Libov, V., Lontkovskyi, D., Makarenko, I., Sorokin, I., Verbytskyi, A., Volynets, O., Zolko, M., Son, D., Favereau, J. d., Piotrzkowski, K., Barreiro, F., Glasman, C., Jimenez, M., Peso, J. d., Ron, E., Terron, J., Uribe Estrada, C., Corriveau, F., Schwartz, J., Zhou, C., Tsurugai, T., Antonov, A., Dolgoshein, B. A., Gladkov, D., Sosnovtsev, V., Stifutkin, A., Suchkov, S., Dementiev, R. K., Ermolov, P. F., Gladilin, L. K., Golubkov, Y. A., Khein, L. A., Korzhavina, I. A., Kuzmin, V. A., Levchenko, B. B., Lukina, O. Y., Proskuryakov, A. S., Shcheglova, L. M., Zotkin, D. S., Abt, I., Caldwell, A., Kollar, D., Reisert, B., Schmidke, W. B., Grigorescu, G., Keramidas, A., Koffeman, E., Kooijman, P., Pellegrino, A., Tiecke, H., Vazquez, M., Wiggers, L., Brummer, N., Bylsma, B., Durkin, L. S., Lee, A., Ling, T. Y., Allfrey, P. D., Bell, M. A., Cooper Sarkar, A. M., Devenish, R. C. E., Ferrando, J., Foster, B., Gwenlan, C., Horton, K., Oliver, K., Robertson, A., Walczak, R., Bertolin, A., Corso, F. D., Dusini, S., Longhin, A., Stanco, L., Brugnera, R., Carlin, R., Garfagnini, A., Limentani, S., B. Y., Oh, Raval, A., Whitmore, J. J., Iga, Y., D'Agostini, G., Marini, G., Nigro, A., Cole, J. E., Hart, J. C., Abramowicz, H., Ingbir, R., Kananov, S., Levy, A., Stern, A., Kuze, M., Maeda, J., Hori, R., Kagawa, S., Okazaki, N., Shimizu, S., Tawara, T., Hamatsu, R., Kaji, H., Kitamura, S., Ota, O., Y. D., Ri, Costa, Marco, Ferrero, Maria Italia, Monaco, Vincenzo, Sacchi, Roberto, Sola, Valentina, Solano, Ada Maria, Arneodo, M., Ruspa, M., Fourletov, S., Martin, J. F., Stewart, T. P., Boutle, S. K., Butterworth, J. M., Jones, T. W., Loizides, J. H., Wing, M., Brzozowska, B., Ciborowski, J., Grzelak, G., Kulinski, P., Luzniak, P., Malka, J., Nowak, R. J., Pawlak, J. M., Perlanski, W., Zarnecki, A. F., Adamus, M., Plucinski, P., Eisenberg, Y., Hochman, D., Karshon, U., Brownson, E., Reeder, D. D., Savin, A. A., Smith, W. H., Wolfe, H., Bhadra, S., Catterall, C. D., Cui, Y., Hartner, G., Menary, S., Noor, U., Standage, J., Whyte, J., Collaboration, Z., S. CHEKANOV, M. DERRICK, S. MAGILL, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, P. ANTONIOLI, G. BARI, L. BELLAGAMBA, D. BOSCHERINI, A. BRUNI, G. BRUNI, F. CINDOLO, M. CORRADI, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, S. ANTONELLI, M. BASILE, M. BINDI, L. CIFARELLI, A. CONTIN, S. DE PASQUALE, G. SARTORELLI, A. ZICHICHI, D. BARTSCH, I. BROCK, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JÜNGST, A.E. NUNCIO-QUIROZ, E. PAUL, U. SAMSON, V. SCHÖNBERG, R. SHEHZADI, M. WLASENKO, J.D. MORRIS, M. KAUR, P. KAUR, I. SINGH, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, Z.A. IBRAHIM, F. MOHAMAD IDRIS, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, K. OLKIEWICZ, B. PAWLIK, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, O. BEHNKE, J. BEHR, U. BEHRENS, C. BLOHM, K. BORRAS, D. BOT, R. CIESIELSKI, N. COPPOLA, S. FANG, A. GEISER, P. GÖTTLICHER, J. GREBENYUK, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, A. HÜTTMANN, J. JANUSCHEK, B. KAHLE, I.I. KATKOV, U. KLEIN, U. KÖTZ, H. KOWALSKI, M. LISOVYI, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I.-A. MELZER-PELLMANN, S. MIGLIORANZI, A. MONTANARI, T. NAMSOO, D. NOTZ, A. PARENTI, P. ROLOFF, I. RUBINSKY, U. SCHNEEKLOTH, A. SPIRIDONOV, D. SZUBA, J. SZUBA, T. THEEDT, G. WOLF, K. WRONA, A.G. YAGUES MOLINA, C. YOUNGMAN, W. ZEUNER, V. DRUGAKOV, W. LOHMANN, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, M. FORREST, M. ROSIN, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, K. PAPAGEORGIU, U. HOLM, R. KLANNER, E. LOHRMANN, H. PERREY, P. SCHLEPER, T. SCHORNER-SADENIUS, J. SZTUK, H.STADIE, M. TURCATO, K.R. LONG, A.D. TAPPER, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, N.S. POKROVSKIY, B.O. ZHAUTYKOV, V. AUSHEV, O. BACHYNSKA, M. BORODIN, I. KADENKO, A. KOZULIA, V. LIBOV, D. LONTKOVSKYI, I. MAKARENKO, IU. SOROKIN, A. VERBYTSKYI, O. VOLYNETS, M. ZOLKO, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, J. DEL PESO, E. RON, J. TERRON, C. URIBE-ESTRADA, F. CORRIVEAU, J. SCHWARTZ, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, D. GLADKOV, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F.ERMOLOV, L.K. GLADILIN, YU.A. GOLUBKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A.KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, I. ABT, A. CALDWELL, D. KOLLAR, B. REISERT, W.B. SCHMIDKE, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, A.M. COOPER-SARKAR, R.C.E. DEVENISH, J. FERRANDO, B.FOSTER, C. GWENLAN, K. HORTON, K. OLIVER, A. ROBERTSON, R. WALCZAK, A. BERTOLIN, R. BRUGNERA, R. CARLIN, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, B.Y. OH, A. RAVAL, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.C. HART, H. ABRAMOWICZ, R. INGBIR, S. KANANOV, A. LEVY, A. STERN, M. ISHITSUKA, T. KANNO, M. KUZE, J. MAEDA, R. HORI, S. KAGAWA, N. OKAZAKI, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.COSTA, M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, V. SOLA, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, T.P. STEWART, S.K. BOUTLE, J.M. BUTTERWORTH, T.W. JONES, J.H. LOIZIDES, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J.NOWAK, J.M. PAWLAK, W. PERLANSKI, T. TYMIENIECKA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, D. HOCHMAN, U. KARSHON, E. BROWNSON, D.D. REEDER, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, G. HARTNER, U. NOOR, J. WHYTE., Precision Frontier, Zeus (IHEF, IoP, FNWI), and UCL - SC/PHYS - Département de physique
Subjects: Quark, Particle physics, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), Proton, D-ASTERISK, HERA, H1 VERTEX DETECTOR, FOS: Physical sciences, 01 natural sciences, 7. Clean energy, CROSS-SECTIONS, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, DESIGN, 0103 physical sciences, ddc:530, Charm (quantum number), 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Physics, Quantum chromodynamics, Muon, ZEUS (particle detector), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, ZEUS BARREL CALORIMETER, PHYSICS EVENT GENERATION, CENTRAL TRACKING DETECTOR, REAR CALORIMETER, Production (computer science), High Energy Physics::Experiment, HADRON-COLLISIONS
Abstract: The production of charm and beauty quarks in ep interactions has been measured with the ZEUS detector at HERA for squared four-momentum exchange Q^2>20 GeV^2, using an integrated luminosity of 126 pb^{-1}. Charm and beauty quarks were identified through their decays into muons. Differential cross sections were measured for muon transverse momenta p_T^{\mu}>1.5 GeV and pseudorapidities -1.6, Comment: 14 pages, 6 tables, 7 figures, accepted by EPJC
Published: 2009

13. Multijet cross sections in charged current e(+/-)p scattering at HERA

Author: Chekanov, S, Derrick, M, Magill, S, Musgrave, B, Nicholass, D, Repond, J, Yoshida, R, Mattingly, MCK, Jechow, M, Pavel, N, Antonioli, P, Bari, G, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Cindolo, F, Corradi, M, Iacobucci, G, Margotti, A, Nania, R, Polini, A, Antonelli, S, Basile, M, Bindi, M, Cifarelli, L, Contin, A, De Pasquale, S, Sartorelli, G, Zichichi, A, Bartsch, D, Brock, I, Hartmann, H, Hilger, E, Jakob, H-P, Juengst, M, Nuncio-Quiroz, AE, Paul, E, Renner, R, Samson, U, Schoenberg, V, Shehzadi, R, Wlasenko, M, Brook, NH, Heath, GP, Morris, JD, Capua, M, Fazio, S, Mastroberardino, A, Schioppa, M, Susinno, G, Tassi, E, Kim, JY, Ibrahim, ZA, Kamaluddin, B, Wan Abdullah, WAT, Ning, Y, Ren, Z, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Galas, A, Gil, M, Olkiewicz, K, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, Grabowska-Bold, I, Kisielewska, D, Lukasik, J, Przybycien, M, Suszycki, L, Kotanski, A, Slominski, W, Behrens, U, Blohm, C, Bonato, A, Borras, K, Ciesielski, R, Coppola, N, Drugakov, V, Fang, S, Fourletova, J, Geiser, A, Ttlicher, PG, Grebenyuk, J, Gregor, I, Haas, T, Hain, W, Huttmann, A, Januschek, F, Kahle, B, Katkov, II, Klein, U, Koetz, U, Kowalski, H, Lobodzinska, E, Loehr, B, R, M, Melzer-Pellmann, I-A, Miglioranzi, S, Montanari, A, Namsoo, T, Notz, D, Parenti, A, Rinaldi, L, Roloff, P, Rubinsky, I, Santamarta, R, Schneekloth, U, Spiridonov, A, Szuba, D, Szuba, J, Theedt, T, Wolf, G, Wrona, K, Molina, AGY, Youngman, C, Zeuner, W, Lohmann, W, Schlenstedt, S, Barbagli, G, Gallo, E, Pelfer, PG, Bamberger, A, Dobur, D, Karstens, F, Vlasov, NN, Bussey, PJ, Doyle, AT, Dunne, W, Forrest, M, Rosin, M, Saxon, DH, Skillicorn, IO, Gialas, I, Papageorgiu, K, Holm, U, Klanner, R, Lohrmann, E, Schleper, P, Schoerner-Sadenius, T, Sztuk, J, Stadie, H, Turcato, M, Foudas, C, Fry, C, Long, KR, Tapper, AD, Matsumoto, T, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, AN, Boos, EG, Pokrovskiy, NS, Zhautykov, BO, Aushev, V, Borodin, M, Kozulia, A, Lisovyi, M, Son, D, de Favereau, J, Piotrzkowski, K, Barreiro, F, Glasman, C, Jimenez, M, Labarga, L, del Peso, J, Ron, E, Soares, M, Terron, J, Zambrana, M, Corriveau, F, Liu, C, Schwartz, J, Walsh, R, Zhou, C, Tsurugai, T, Antonov, A, Dolgoshein, BA, Gladkov, D, Sosnovtsev, V, Stifutkin, A, Suchkov, S, Dementiev, RK, Ermolov, PF, Gladilin, LK, Golubkov, YA, Khein, LA, Korzhavina, IA, Kuzmin, VA, Levchenko, BB, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Zotkin, DS, Abt, I, Ttner, CB, Caldwell, A, Kollar, D, Reisert, B, Schmidke, WB, Sutiak, J, Grigorescu, G, Keramidas, A, Koffeman, E, Kooijman, P, Pellegrino, A, Tiecke, H, Vazquez, M, Wiggers, L, Brummer, N, Bylsma, B, Durkin, LS, Lee, A, Ling, TY, Allfrey, PD, Bell, MA, Cooper-Sarkar, AM, Devenish, RCE, Ferrando, J, Foster, B, Korcsak-Gorzo, K, Oliver, K, Patel, S, Roberfroid, V, Robertson, A, Straub, PB, Uribe-Estrada, C, Walczak, R, Bertolin, A, Corso, FD, Dusini, S, Longhin, A, Stanco, L, Bellan, P, Brugnera, R, Carlin, R, Garfagnini, A, Limentani, S, Oh, BY, Raval, A, Ukleja, J, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cole, JE, Hart, JC, Abramowicz, H, Gabareen, A, Ingbir, R, Kananov, S, Levy, A, Smith, O, Stern, A, Kuze, M, Maeda, J, Hori, R, Kagawa, S, Okazaki, N, Shimizu, S, Tawara, T, Hamatsu, R, Kaji, H, Kitamura, S, Ota, O, Ri, YD, Costa, M, Ferrero, MI, Monaco, V, Sacchi, R, Solano, A, Arneodo, M, Ruspa, M, Fourletov, S, Martin, JF, Stewart, TP, Boutle, SK, Butterworth, JM, Gwenlan, C, Jones, TW, Loizides, JH, Wing, M, Brzozowska, B, Ciborowski, J, Grzelak, G, Kulinski, P, Luzniak, P, Malka, J, Nowak, RJ, Pawlak, JM, Tymieniecka, T, Ukleja, A, Arnecki, AFZ, Adamus, M, Plucinski, P, Eisenberg, Y, Hochman, D, Karshon, U, Brownson, E, Danielson, T, Everett, A, Kcira, D, Reeder, DD, Ryan, P, Savin, AA, Smith, WH, Wolfe, H, Bhadra, S, Catterall, CD, Cui, Y, Hartner, G, Menary, S, Noor, U, Standage, J, Whyte, J, Collaboration, ZEUS, Zeus (IHEF, IoP, FNWI), S. CHEKANOV, M. DERRICK, S. MAGILL, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, M. JECHOW, N. PAVEL, S. ANTONELLI, P. ANTONIOLI, G. BARI, M. BASILE, L. BELLAGAMBA, M. BINDI, D. BOSCHERINI, A. BRUNI, G. BRUNI, L. CIFARELLI, F. CINDOLO, A. CONTIN, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, G. SARTORELLI, A. ZICHICHI, D. BARTSCH, I. BROCK, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JÜNGST, A.E. NUNCIO-QUIROZ, E. PAUL, R. RENNER, U. SAMSON, V. SCHÖNBERG, R. SHEHZADI, M. WLASENKO, N.H. BROOK, G.P. HEATH, J.D. MORRIS, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, Z.A. IBRAHIM, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, U. BEHRENS, C. BLOHM, A. BONATO, K. BORRAS, R. CIESIELSKI, N. COPPOLA, V. DRUGAKOV, S. FANG, J. FOURLETOVA, A. GEISER, P. GÖTTLICHER, J. GREBENYUK, I. GREGOR, T. HAAS, W. HAIN, A. HÜTTMANN, F. JANUSCHEK, B. KAHLE, I.I. KATKOV, U. KLEIN, U. KÖTZ, H. KOWALSKI, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I.-A. MELZER-PELLMANN, S. MIGLIORANZI, A. MONTANARI, T. NAMSOO, D. NOTZ, A. PARENTI, L. RINALDI, P. ROLOFF, I. RUBINSKY, R. SANTAMARTA, U. SCHNEEKLOTH, A. SPIRIDONOV, D. SZUBA, J. SZUBA, T. THEEDT, G. WOLF, K. WRONA, A.G. YAGUES MOLINA, C. YOUNGMAN, W. ZEUNER, W. LOHMANN, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, W. DUNNE, M. FORREST, M. ROSIN, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, K. PAPAGEORGIU, U. HOLM, R. KLANNER, E. LOHRMANN, P. SCHLEPER, T. SCHÖRNER-SADENIUS, J. SZTUK, H.STADIE, M. TURCATO, C. FOUDAS, C. FRY, K.R. LONG, A.D. TAPPER, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, N.S. POKROVSKIY, B.O. ZHAUTYKOV, V. AUSHEV, M. BORODIN, A. KOZULIA, M. LISOVYI, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, M. SOARES, J. TERRÓN, M. ZAMBRANA, F. CORRIVEAU, C. LIU, J. SCHWARTZ, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, D. GLADKOV, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F.ERMOLOV, L.K. GLADILIN, YU.A. GOLUBKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A.KUZMIN, B.B. LEVCHENKO, O.YU.LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, I. ABT, C. BÜTTNER, A. CALDWELL, D. KOLLAR, B. REISERT, W.B. SCHMIDKE, J. SUTIAK, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, P.D. ALLFREY, M.A. BELL, A.M. COOPER-SARKAR, R.C.E. DEVENISH, J. FERRANDO, B.FOSTER, K. KORCSAK-GORZO, K. OLIVER, S. PATEL, V. ROBERFROID, A. ROBERTSON, P.B. STRAUB, C. URIBE-ESTRADA, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, B.Y. OH, A. RAVAL, J. UKLEJA, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.E. COLE, J.C. HART, H. ABRAMOWICZ, A. GABAREEN, R. INGBIR, S. KANANOV, A. LEVY, O. SMITH, A. STERN, M. KUZE, J. MAEDA, R. HORI, S. KAGAWA, N. OKAZAKI, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.COSTA, M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, T.P. STEWART, S.K. BOUTLE, J.M. BUTTERWORTH, C. GWENLAN, T.W. JONES, J.H. LOIZIDES, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J.NOWAK, J.M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, D. HOCHMAN, U. KARSHON, E. BROWNSON, T. DANIELSON, A. EVERETT, D. KÇIRA, D.D. REEDER, P. RYAN, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, J. STANDAGE, and J. WHYTE.
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, Proton, High Energy Physics, HERA, ZEUS Collaboration, Deep Inelastic Scattering, Color dipole model, PARTON DISTRIBUTIONS, HADRON-COLLISIONS, JET FRAGMENTATION, DIJET PRODUCTION, FOS: Physical sciences, 01 natural sciences, 7. Clean energy, Particle identification, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, ddc:530, Invariant mass, 010306 general physics, DEEP-INELASTIC-SCATTERING, Physics, Quantum chromodynamics, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, ZEUS BARREL CALORIMETER, PHYSICS EVENT GENERATION, Deep inelastic scattering, CENTRAL TRACKING DETECTOR, COLOR DIPOLE MODEL, Pseudorapidity, High Energy Physics::Experiment
Abstract: Jet cross sections were measured in charged current deep inelastic e+-p scattering at high boson virtualities Q^2 with the ZEUS detector at HERA II using an integrated luminosity of 0.36 fb^-1. Differential cross sections are presented for inclusive-jet production as functions of Q^2, Bjorken x and the jet transverse energy and pseudorapidity. The dijet invariant mass cross section is also presented. Observation of three- and four-jet events in charged-current e+-p processes is reported for the first time. The predictions of next-to-leading-order (NLO) QCD calculations are compared to the measurements. The measured inclusive-jet cross sections are well described in shape and normalization by the NLO predictions. The data have the potential to constrain the u and d valence quark distributions in the proton if included as input to global fits., Comment: 55 pages, 15 figures, 16 tables
Published: 2008

14. Forward-jet production in deep inelastic ep scattering at HERA

Author: S. CHEKANOV, M. DERRICK, S. MAGILL, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M. C. K. MATTINGLY, M. JECHOW, N. PAVEL, A. G. YAGUES MOLINA, P. ANTONIOLI, G. BARI, L. BELLAGAMBA, D. BOSCHERINI, A. BRUNI, G. BRUNI, F. CINDOLO, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, A. ZICHICHI, D. BARTSCH, I. BROCK, H. HARTMANN, E. HILGER, H. P. JAKOB, M. JUNGST, O. M. KIND, A. E. NUNCIO QUIROZ, E. PAUL, R. RENNER, U. SAMSON, V. SCHOENBERG, R. SHEHZADI, M. WLASENKO, N. H. BROOK, G. P. HEATH, J. D. MORRIS, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J. Y. KIM, K. J. MA, Z. A. IBRAHIM, B. KAMALUDDIN, W. A. T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, V. ADLER, U. BEHRENS, I. BLOCH, C. BLOHM, A. BONATO, K. BORRAS, R. CIESIELSKI, N. COPPOLA, A. DOSSANOV, V. DRUGAKOV, J. FOURLETOVA, A. GEISER, D. GLADKOV, P. GOETTLICHER, J. GREBENYUK, I. GREGOR, T. HAAS, W. HAIN, C. HORN, A. HUTTMANN, B. KAHLE, I. I. KATKOV, U. KLEIN, U. KOETZ, H. KOWALSKI, E. LOBODZINSKA, B. LOEHR, R. MANKEL, I. A. MELZER PELLMANN, S. MIGLIORANZI, A. MONTANARI, T. NAMSOO, D. NOTZ, P. ROLOFF, I. RUBINSKY, R. SANTAMARTA, U. SCHNEEKLOTH, A. SPIRIDONOV, H. STADIE, D. SZUBA, J. SZUBA, T. THEEDT, G. WOLF, K. WRONA, C. YOUNGMAN, W. ZEUNER, W. LOHMANN, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N. N. VLASOV, P. J. BUSSEY, A. T. DOYLE, W. DUNNE, M. FORREST, D. H. SAXON, I. O. SKILLICORN, I. GIALAS, K. PAPAGEORGIU, T. GOSAU, U. HOLM, R. KLANNER, E. LOHRMANN, H. SALEHI, P. SCHLEPER, T. SCHOERNER SADENIUS, J. SZTUK, K. WICHMANN, K. WICK, C. FOUDAS, C. FRY, K. R. LONG, A. D. TAPPER, M. KATAOKA, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A. N. BARAKBAEV, E. G. BOOS, N. S. POKROVSKIY, B. O. ZHAUTYKOV, V. AUSHEV, M. BORODIN, A. KOZULIA, M. LISOVYI, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, M. SOARES, J. TERRON, M. ZAMBRANA, F. CORRIVEAU, C. LIU, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B. A. DOLGOSHEIN, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R. K. DEMENTIEV, P. F. ERMOLOV, L. K. GLADILIN, L. A. KHEIN, I. A. KORZHAVINA, V. A. KUZMIN, B. B. LEVCHENKO, O. Y.U. LUKINA, A. S. PROSKURYAKOV, L. M. SHCHEGLOVA, D. S. ZOTKIN, S. A. ZOTKIN, I. ABT, C. BUTTNER, A. CALDWELL, D. KOLLAR, W. B. SCHMIDKE, J. SUTIAK, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VAZQUEZ, L. WIGGERS, N. BRUMMER, B. BYLSMA, L. S. DURKIN, A. LEE, T. Y. LING, P. D. ALLFREY, M. A. BELL, A. M. COOPER SARKAR, R. C. E. DEVENISH, J. FERRANDO, B. FOSTER, K. KORCSAK GORZO, K. OLIVER, S. PATEL, V. ROBERFROID, A. ROBERTSON, P. B. STRAUB, C. URIBE ESTRADA, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, M. TURCATO, B. Y. OH, A. RAVAL, J. UKLEJA, J. J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J. E. COLE, J. C. HART, H. ABRAMOWICZ, A. GABAREEN, R. INGBIR, S. KANANOV, A. KREISEL, A. LEVY, O. SMITH, A. STERN, M. KUZE, J. MAEDA, R. HORI, S. KAGAWA, N. OKAZAKI, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y. D. RI, M. I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J. F. MARTIN, S. K. BOUTLE, J. M. BUTTERWORTH, C. GWENLAN, T. W. JONES, J. H. LOIZIDES, M. R. SUTTON, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R. J. NOWAK, J. M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, A. F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, I. GILLER, D. HOCHMAN, U. KARSHON, M. ROSIN, E. BROWNSON, T. DANIELSON, A. EVERETT, D. KCIRA, D. D. REEDER, P. RYAN, A. A. SAVIN, W. H. SMITH, H. WOLFE, S. BHADRA, C. D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, J. STANDAGE, J. WHYTE, ANTONELLI, STEFANO, BASILE, MAURIZIO, BINDI, MARCELLO, CIFARELLI, LUISA, CONTIN, ANDREA, SARTORELLI, GABRIELLA, RINALDI, LORENZO, S. CHEKANOV, M. DERRICK, S. MAGILL, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, M. JECHOW, N. PAVEL, A.G. YAGUES MOLINA, S. ANTONELLI, P. ANTONIOLI, G. BARI, M. BASILE, L. BELLAGAMBA, M. BINDI, D. BOSCHERINI, A. BRUNI, G. BRUNI, L. CIFARELLI, F. CINDOLO, A. CONTIN, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, G. SARTORELLI, A. ZICHICHI, D. BARTSCH, I. BROCK, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JUNGST, O.M. KIND, A.E. NUNCIO-QUIROZ, E. PAUL, R. RENNER, U. SAMSON, V. SCHOENBERG, R. SHEHZADI, M. WLASENKO, N.H. BROOK, G.P. HEATH, J.D. MORRIS, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, K.J. MA, Z.A. IBRAHIM, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T.BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, V. ADLER, U. BEHRENS, I. BLOCH, C. BLOHM, A. BONATO, K. BORRAS, R. CIESIELSKI, N. COPPOLA, A. DOSSANOV, V. DRUGAKOV, J. FOURLETOVA, A. GEISER, D. GLADKOV, P. GOETTLICHER, J. GREBENYUK, I. GREGOR, T. HAAS, W. HAIN, C. HORN, A. HUTTMANN, B. KAHLE, I.I. KATKOV, U. KLEIN, U. KOETZ, H. KOWALSKI, E. LOBODZINSKA, B. LOEHR, R. MANKEL, I.-A. MELZER-PELLMANN, S. MIGLIORANZI, A. MONTANARI, T. NAMSOO, D. NOTZ, L. RINALDI, P. ROLOFF, I. RUBINSKY, R. SANTAMARTA, U. SCHNEEKLOTH, A. SPIRIDONOV, H. STADIE, D. SZUBA, J. SZUBA, T. THEEDT, G. WOLF, K. WRONA, C. YOUNGMAN, W. ZEUNER, W. LOHMANN, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P.G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, W. DUNNE, M. FORREST, D.H. SAXON, I.O. SKILLICORN, I.GIALAS, K. PAPAGEORGIU, T. GOSAU, U. HOLM, R. KLANNER, E. LOHRMANN, H. SALEHI, P. SCHLEPER, T. SCHOERNER-SADENIUS, J. SZTUK, K. WICHMANN, K. WICK, C. FOUDAS, C. FRY, K.R. LONG, A.D. TAPPER, M. KATAOKA, T. MATSUMOTO, K. NAGANO, K.TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, N.S. POKROVSKIY, B.O. ZHAUTYKOV, V. AUSHEV, M. BORODIN, A. KOZULIA, M. LISOVYI, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, M. SOARES, J. TERRON, M. ZAMBRANA, F. CORRIVEAU, C. LIU, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F. ERMOLOV, L.K. GLADILIN, L.A. KHEIN, I.A. KORZHAVINA, V.A. KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, S.A. ZOTKIN, I. ABT, C. BUTTNER, A. CALDWELL, D. KOLLAR, W.B. SCHMIDKE, J. SUTIAK, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VAZQUEZ, L. WIGGERS, N. BRUMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, P.D. ALLFREY, M.A. BELL, A.M. COOPER-SARKAR, R.C.E. DEVENISH, J. FERRANDO, B. FOSTER, K. KORCSAK-GORZO, K. OLIVER, S. PATEL, V. ROBERFROID, A. ROBERTSON, P.B. STRAUB, C. URIBE-ESTRADA, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, M. TURCATO, B.Y. OH, A. RAVAL, J. UKLEJA, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.E. COLE, J.C. HART, H. ABRAMOWICZ, A. GABAREEN, R. INGBIR, S. KANANOV, A. KREISEL, A. LEVY, O. SMITH, A. STERN, M. KUZE, J. MAEDA, R. HORI, S. KAGAWA, N. OKAZAKI, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, S.K. BOUTLE, J.M. BUTTERWORTH, C. GWENLAN, T.W. JONES, J.H. LOIZIDES, M.R. SUTTON, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J. NOWAK, J.M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, I. GILLER, D. HOCHMAN, U. KARSHON, M. ROSIN, E. BROWNSON, T. DANIELSON, A. EVERETT, D.KCIRA, D.D. REEDER, P. RYAN, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, J. STANDAGE, and J. WHYTE
Subjects: Particle physics, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, HERA, FOS: Physical sciences, Parton, Jet (particle physics), 7. Clean energy, 01 natural sciences, CROSS-SECTIONS, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), LEPTON-NUCLEON SCATTERING, 0103 physical sciences, ddc:530, High Energy Physics, 010306 general physics, Engineering (miscellaneous), Physics, Quantum chromodynamics, Luminosity (scattering theory), ZEUS (particle detector), 010308 nuclear & particles physics, BREIT FRAME, High Energy Physics::Phenomenology, ZEUS BARREL CALORIMETER, Deep inelastic scattering, CENTRAL TRACKING DETECTOR, QCD CASCADES, ZEUS Collaboration, HADRON-COLLISIONS, Pseudorapidity, High Energy Physics::Experiment
Abstract: Forward jet cross sections have been measured in neutral current deep inelastic scattering at low Bjorken-x with the ZEUS detector at HERA using an integrated luminosity of ${81.8 \rm pb}^{-1}$. Measurements are presented for inclusive forward jets as well as for forward jets accompanied by a dijet system. The explored phase space, with jet pseudorapidity up to 4.3 is expected to be particularly sensitive to the dynamics of QCD parton evolution at low x. The measurements are compared to fixed-order QCD calculations and to leading-order parton-shower Monte Carlo models., 33 pages, 10 figures, 9 tables, accepted by The European Physical Journal C
Published: 2007

15. Leading neutron energy and p(T) distributions in deep inelastic scattering and photoproduction at HERA

Author: Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Adler, V., Allfrey, P. D., Antonelli, S., Antonioli, P., Antonov, A., Arneodo, M., Aushev, V., Bamberger, A., Barakbaev, A. N., Barbagli, G., Bari, G., Barreiro, F., Bartsch, D., Basile, M., Behrens, U., Bell, M. A., Bellagamba, L., Bellan, P., Bertolin, A., Bhadra, S., Bindi, M., Bloch, I., Blohm, C., Bołd, T., Bonato, A., Boos, E. G., Borras, K., Boscherini, D., Boutle, S. K., Brock, I., Brook, N. H., Brownson, E., Brugnera, R., Brümmer, N., Bruni, A., Bruni, G., Brzozowska, B., Bussey, P. J., Butterworth, J. M., Büttner, C., Bylsma, B., Caldwell, A., Capua, M., Carlin, R., Catterall, C. D., Chekanov, S., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cifarelli, L., Cindolo, F., Cole, J. E., Contin, A., Cooper-Sarkar, A. M., Coppola, N., Corradi, M., Corriveau, F., Cottrell, A., Cui, Y., D'Agostini, G., Dal Corso, F., Danielson, T., del Peso, J., Dementiev, R. K., Derrick, M., Devenish, R. C. E., de Favereau, J., De Pasquale, S., Dobur, D., Dolgoshein, B. A., Dossanov, A., Doyle, A. T., Drugakov, V., Dunne, W., Durkin, L. S., Dusini, S., Eisenberg, Y., Ermolov, P. F., Eskreys, A., Everett, A., Fazio, S., Ferrando, J., Ferrero, M. I., Figiel, J., Forrest, M., Foster, B., Foudas, C., Fourletov, S., Fourletova, J., Fry, C., Pelfer, P. G., Gabareen, A., Galas, A., Gallo, E., Garfagnini, A., Geiser, A., Gialas, I., Gil, M., Giller, I., Gladilin, L. K., Gladkov, D., Glasman, C., Goers, S., Gosau, T., Göttlicher, P., Grabowska-Bołd, I., Grebenyuk, J., Gregor, I., Grigorescu, G., Grzelak, G., Gwenlan, C., Haas, T., Hain, W., Hamatsu, R., Hart, J. C., Hartmann, H., Hartner, G., Heath, G. P., Hilger, E., Hochman, D., Holm, U., Hori, R., Horn, C., Hüttmann, A., Iacobucci, G., Ibrahim, Z. A., Iga, Y., Ingbir, R., Jakob, H.-P., Jechow, M., Jimenez, M., Jones, T. W., Jüngst, M., Kagawa, S., Kahle, B., Kaji, H., Kamaluddin, B., Kananov, S., Karshon, U., Karstens, F., Kataoka, M., Katkov, I. I., Kçira, D., Keramidas, A., Khein, L. A., Kim, J. Y., Kind, O. M., Kisielewska, D., Kitamura, S., Klanner, R., Klein, U., Koffeman, E., Kollar, D., Kooijman, P., Korcsak-Gorzo, K., Korzhavina, I. A., Kota\'nski, A., Kötz, U., Kowalski, H., Kulinski, P., Kuze, M., Kuzmin, V. A., Labarga, L., Lee, A., Levchenko, B. B., Levy, A., Limentani, S., Ling, T. Y., Liu, C., Lobodzinska, E., Lohmann, W., Löhr, B., Lohrmann, E., Loizides, J. H., Long, K. R., Longhin, A., Łukasik, J., Lukina, O. Yu., Łu\. zniak, P., Ma, K. J., Maeda, J., Magill, S., Malka, J., Mankel, R., Margotti, A., Marini, G., Martin, J. F., Mastroberardino, A., Matsumoto, T., Mattingly, M. C. K., Melzer-Pellmann, I.-A., Menary, S., Miglioranzi, S., Monaco, V., Montanari, A., Morris, J. D., Musgrave, B., Nagano, K., Namsoo, T., Nania, R., Nicholass, D., Nigro, A., Ning, Y., Noor, U., Notz, D., Nowak, R. J., Nuncio-Quiroz, A. E., Oh, B. Y., Okazaki, N., Olkiewicz, K., Ota, O., Papageorgiu, K., Patel, S., Paul, E., Pavel, N., Pawlak, J. M., Pellegrino, A., Piotrzkowski, K., Plucinski, P., Pokrovskiy, N. S., Polini, A., Proskuryakov, A. S., Przybycie\'n, M., Raval, A., Reeder, D. D., Ren, Z., Renner, R., Repond, J., Ri, Y. D., Rinaldi, L., Roberfroid, V., Robertson, A., Roloff, P., Ron, E., Rosin, M., Rubinsky, I., Ruspa, M., Ryan, P., Sacchi, R., Salehi, H., Samson, U., Santamarta, R., Sartorelli, G., Savin, A. A., Saxon, D. H., Schioppa, M., Schlenstedt, S., Schleper, P., Schmidke, W. B., Schneekloth, U., Schönberg, V., Schörner-Sadenius, T., Sciulli, F., Shcheglova, L. M., Shehzadi, R., Shimizu, S., Skillicorn, I. O., Słomi\'nski, W., Smith, W. H., Soares, M., Solano, A., Son, D., Sosnovtsev, V., Spiridonov, A., Stadie, H., Stanco, L., Standage, J., Stifutkin, A., Stopa, P., Straub, P. B., Suchkov, S., Susinno, G., Suszycki, L., Sutiak, J., Sutton, M. R., Sztuk, J., Szuba, D., Szuba, J., Tapper, A. D., Tassi, E., Tawara, T., Terrón, J., Theedt, T., Tiecke, H., Tokushuku, K., Tsurugai, T., Turcato, M., Tymieniecka, T., Ukleja, A., Ukleja, J., Uribe-Estrada, C., Vázquez, M., Vlasov, N. N., Walczak, R., Walsh, R., Wan Abdullah, W. A. T., Whitmore, J. J., Whyte, J., Wichmann, K., Wick, K., Wiggers, L., Wing, M., Wlasenko, M., Wolf, G., Wolfe, H., Wrona, K., Yagües Molina, A. G., Yamada, S., Yamazaki, Y., Yoshida, R., Youngman, C., Zambrana, M., Zarnecki, A. F., Zawiejski, L., Zeuner, W., Zhautykov, B. O., Zhou, C., Zichichi, A., Zotkin, D. S., Zotkin, S. A., L. CIFARELLI, S. CHEKANOV, M. DERRICK, S. MAGILL, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, M. JECHOW, N. PAVEL, A.G. YAGUES MOLINA, S. ANTONELLI, P. ANTONIOLI, G. BARI, M. BASILE, L. BELLAGAMBA, M. BINDI, D. BOSCHERINI, A. BRUNI, G. BRUNI, F. CINDOLO, A. CONTIN, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, G. SARTORELLI, A. ZICHICHI, D. BARTSCH, I. BROCK, S. GOERS, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JUNGST, O.M. KIND, E. PAUL, R. RENNER, U. SAMSON, V. SCHONBERG, R. SHEHZADI, M. WLASENKO, N.H. BROOK, G.P. HEATH, J.D. MORRIS, T. NAMSOO, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, K.J. MA, Z.A. IBRAHIM, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, V. ADLER, U. BEHRENS, I. BLOCH, C. BLOHM, A. BONATO, K. BORRAS, R. CIESIELSKI, N. COPPOLA, A. DOSSANOV, V. DRUGAKOV, J. FOURLETOVA, A. GEISER, D. GLADKOV, P. GOTTLICHER, I. GREGOR, T. HAAS, W. HAIN, C. HORN, B. KAHLE, I.I. KATKOV, U. KLEIN, U. KOTZ, H. KOWALSKI, E. LOBODZINSKA, B. LOHR, R. MANKEL, I.-A. MELZER-PELLMANN, S. MIGLIORANZI, A. MONTANARI, D. NOTZ, A.E. NUNCIO-QUIROZ, L. RINALDI, I. RUBINSKY, R. SANTAMARTA, U. SCHNEEKLOTH, A. SPIRIDONOV, H. STADIE, D. SZUBA, J. SZUBA, T. THEEDT, G. WOLF, K. WRONA, C. YOUNGMAN, W. ZEUNER, W. LOHMANN, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P.G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, W. DUNNE, J. FERRANDO, M. FORREST, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, K. PAPAGEORGIU, T. GOSAU, U. HOLM, R. KLANNER, E. LOHRMANN, H. SALEHI, P. SCHLEPER, T. SCHORNER-SADENIUS, J. SZTUK, K. WICHMANN, K. WICK, C. FOUDAS, C. FRY, K.R. LONG, A.D. TAPPER, M. KATAOKA, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, N.S. POKROVSKIY, B.O. ZHAUTYKOV, D. SON, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, E. RON, M. SOARES, J. TERRON, M. ZAMBRANA, F. CORRIVEAU, C. LIU, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F. ERMOLOV, L.K. GLADILIN, L.A. KHEIN, I.A. KORZHAVINA, V.A. KUZMIN, B.B. LEVCHENKO, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, S.A. ZOTKIN, I. ABT, C. BUTTNER, A. CALDWELL, D. KOLLAR, W.B. SCHMIDKE, J. SUTIAK, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VAZQUEZ, L. WIGGERS, N. BRUMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, P.D. ALLFREY, M.A. BELL, A.M. COOPER-SARKAR, A. COTTRELL, R.C.E. DEVENISH, B. FOSTER, K. KORCSAK-GORZO, S. PATEL, V. ROBERFROID, A. ROBERTSON, P.B. STRAUB, C. URIBE-ESTRADA, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, M. TURCATO, B.Y. OH, A. RAVAL, J. UKLEJA, J.J. WHITMORE, Y. IGA, G. MARINI, A. NIGRO, J.E. COLE, J.C. HART, H. ABRAMOWICZ, A. GABAREEN, R. INGBIR, S. KANANOV, A. LEVY, M. KUZE, J. MAEDA, R. HORI, S. KAGAWA, N. OKAZAKI, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, S.K. BOUTLE, J.M. BUTTERWORTH, C. GWENLAN, T.W. JONES, J.H. LOIZIDES, M.R. SUTTON, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, J. MALKA, R.J. NOWAK, J.M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, I. GILLER, D. HOCHMAN, U. KARSHON, M. ROSIN, E. BROWNSON, T. DANIELSON, A. EVERETT, D. KCIRA, D.D. REEDER, P. RYAN, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, J. STANDAGE, J. WHYTE, and UCL
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, Meson, Proton, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, FOS: Physical sciences, PROTON, DIJET CROSS-SECTIONS, PARTON DISTRIBUTIONS, EP COLLISIONS, DESY-HERA, FRAGMENTATION, EVENTS, DIS, SPECTRA, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Pion, ZEUS, 0103 physical sciences, ddc:530, Neutron, 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, HERA, Deep inelastic scattering, Neutron temperature, Quasielastic neutron scattering, High Energy Physics::Experiment
Abstract: The production of energetic neutrons in $ep$ collisions has been studied with the ZEUS detector at HERA. The neutron energy and $p_T^2$ distributions were measured with a forward neutron calorimeter and tracker in a $40 \pb^{-1}$ sample of inclusive deep inelastic scattering (DIS) data and a $6 \pb^{-1}$ sample of photoproduction data. The neutron yield in photoproduction is suppressed relative to DIS for the lower neutron energies and the neutrons have a steeper $p_T^2$ distribution, consistent with the expectation from absorption models. The distributions are compared to HERA measurements of leading protons. The neutron energy and transverse-momentum distributions in DIS are compared to Monte Carlo simulations and to the predictions of particle exchange models. Models of pion exchange incorporating absorption and additional secondary meson exchanges give a good description of the data., 48 pages, 6 tables, 23 figures, minor revisions, accepted by Nuclear Physics B
Published: 2007

16. Measurement of azimuthal asymmetries in neutral current deep inelastic scattering at HERA

Author: M. S. Soares, Pawel Plucinski, R. Walsh, Katsuo Tokushuku, S. Menary, Greg P Heath, V.V. Sosnovtsev, D. Gladkov, N. Brümmer, U. Karshon, J. Rautenberg, T. Tsurugai, Y. Cui, D. Boscherini, N. Coppola, Leszek Adamczyk, Oliver Gutsche, R. Santamarta, W. B. Schmidke, Janusz Chwastowski, Joanne Cole, Francois Corriveau, Y.D. Ri, A. Kotański, M.I. Ferrero, E. Brownson, A. T. Doyle, T. Danielson, V. Roberfroid, I. A. Korzhavina, W. Słomiński, Ulf Behrens, Federico Cindolo, P. Stopa, F. Karstens, C. Horn, B. A. Dolgoshein, Marta Ruspa, E. Ron, Marco Schioppa, A. Everett, P. G. Pelfer, B. Kahle, Roberto Carlin, Alexander Tapper, Fernando Barreiro, Anselmo Margotti, S.I. Suchkov, L.W. Wiggers, Y. Eisenberg, R. Walczak, G. Grzelak, U. Schneekloth, S. Fazio, Roberto Sacchi, A. Ukleja, J. Ciborowski, P.F. Ermolov, U. Stösslein, Shima Shimizu, Marcello Bindi, J. Sztuk, Kenneth Long, G. Bari, Didar Dobur, K. Korcsak-Gorzo, Giovanna Bruni, Claire Gwenlan, Aharon Levy, Tomasz Bold, L. M. Shcheglova, D. Kçira, A. N. Barakbaev, M. Kataoka, J. Standage, O.M. Kind, Giuseppe Iacobucci, B. B. Levchenko, Vincenzo Monaco, J. Łukasik, Richard Hall-Wilton, R.C.E. Devenish, James Ferrando, J. Sutiak, A. Polini, I. Gregor, Costas Foudas, P. Bellan, G. Sartorelli, S. De Pasquale, T. Theedt, J. Ukleja, Y. Iga, B. Löhr, M. Jimenez, Lorenzo Rinaldi, M. Rosin, R. Renner, M. Gil, R. Ingbir, H.G.J.M. Tiecke, F. J. Sciulli, S. Kitamura, N. Pavel, P. Kulinski, J. F. Martin, Zhongliang Ren, J.H. Loizides, A. Galas, Ian Brock, Iwona Grabowska-Bold, A. Pellegrino, T. Matsumoto, Anna Mastroberardino, Amanda Cooper-Sarkar, C. Fry, S. Magill, D. Nicholass, Mark Sutton, Aleksander Filip Żarnecki, A. Keramidas, A.G. Yagües Molina, Ada Solano, V. Adler, S. Limentani, Hartmut Stadie, J. de Favereau, C. Liu, M.C.K. Mattingly, L. S. Durkin, K.J. Ma, Robert Ciesielski, J. Del Peso, J. Fourletova, A. Antonov, G. D'Agostini, R. Hamatsu, Els Koffeman, D. H. Saxon, P. Göttlicher, M. Wang, S. K. Boutle, C.N. Nguyen, A.S. Proskuryakov, G. Watt, T. Y. Ling, C. Zhou, A. Raval, M.A. Bell, H. Salehi, D. Notz, D.S. Zotkin, N. H. Brook, C. D. Catterall, T. W. Jones, K. Wrona, B. Foster, S. Dusini, Gy. Wolf, Robert Klanner, Peter Schleper, A. Bruni, S. Miglioranzi, F. Dal Corso, I. Giller, J. Y. Kim, Yuji Yamazaki, Igor Katkov, S. Patel, Alexander Savin, C. Youngman, Pietro Antonioli, Luisa Cifarelli, L. K. Gladilin, S. Goers, V. Schönberg, P.M. Kooijman, Achim Geiser, Elisabetta Gallo, R. K. Dementiev, A. Bertolin, J. Whyte, L. Zawiejski, K. Wichmann, M. Adamus, M. Turcato, Kunihiro Nagano, Sergei Chekanov, B. Brzozowska, D.D. Reeder, C. Targett-Adams, G. Marini, U. Noor, Dirk-Uwe Bartsch, J. Malka, M. Jüngst, Ben Bylsma, Peter Bussey, M. Wlasenko, H.-P. Jakob, H. Kaji, D. Szuba, A. Longhin, Juan Terron, A.E. Nuncio-Quiroz, Wolfram Dietrich Zeuner, A. Bamberger, Andrea Contin, Jonathan Butterworth, M. Basile, A. Lee, L. Bellagamba, T. Haas, G. Hartner, Enrico Tassi, J. J. Whitmore, E. Hilger, T. Gosau, H. Hartmann, R. Brugnera, B. Musgrave, A. Nigro, S. Antonelli, Marcella Capua, P. Łużniak, W. Dunne, Kerstin Borras, V. A. Kuzmin, S. Yamada, A. Gabareen, Rainer Mankel, N.N. Vlasov, Dong-Chul Son, A. Stifutkin, A.G. Robertson, Mariusz Przybycien, R. Yoshida, M. Corradi, M. Kuze, A. Dossanov, B.Y. Oh, Halina Abramowicz, Danuta Kisielewska, Michele Arneodo, E. Lohrmann, D. Hochman, T. Tawara, B. Kamaluddin, S. Schlenstedt, H. Kowalski, J. Szuba, G. F. Susinno, I. Bloch, Edouard Boos, J. M. Pawlak, N.S. Pokrovskiy, I. Gialas, B.O. Zhautykov, A. Bonato, S. A. Zotkin, A. Garfagnini, E. Paul, Allen Caldwell, S. Fourletov, John Morris, Luis Labarga, G. Aghuzumtsyan, D. Kollar, Zainol Abidin Ibrahim, M. Derrick, T. Tymieniecka, Matthew Wing, U. Samson, K. Wick, John Hart, U. Kötz, Rosario Nania, Jose Repond, I. Rubinsky, Alexander Spiridonov, I. A. Melzer-Pellmann, A. Cottrell, R. J. Nowak, E. Lobodzinska, Giuseppe Barbagli, I. O. Skillicorn, L. Suszycki, W. H. Smith, Thomas Schörner-Sadenius, P. Ryan, Y. Ning, U. Holm, Krzysztof Piotrzkowski, H. Lim, P.B. Straub, S. Bhadra, O. Ota, P.D. Allfrey, S. Kagawa, Claudia Glasman, Luca Stanco, Lev Khein, S. Kananov, I. Abt, C. Büttner, W. Hain, A. Eskreys, Jan Figiel, T. Namsoo, G. Grigorescu, W. A. T. Wan Abdullah, A. Montanari, M. Vázquez, K. Olkiewicz, H. Wolfe, Antonino Zichichi, R. Hori, C. Uribe-Estrada, M. Zambrana, Olga Lukina, L. CIFARELLI S. CHEKANOV, M. DERRICK, S. MAGILL, S. MIGLIORANZI, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA M.C.K. MATTINGLY N. PAVEL, A.G. YAGUES MOLINA S. ANTONELLI, P. ANTONIOLI, G. BARI, M. BASILE, L. BELLAGAMBA, M. BINDI, D. BOSCHERINI, A. BRUNI, G. BRUNI, F. CINDOLO, A. CONTIN, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, L. RINALDI, G. SARTORELLI, A. ZICHICHI G. AGHUZUMTSYAN, D. BARTSCH, I. BROCK, S. GOERS, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JUNGST, O.M. KIND, E. PAUL, J. RAUTENBERG, R. RENNER, U. SAMSON, V. SCHONBERG, M. WANG, M. WLASENKO N.H. BROOK, G.P. HEATH, J.D. MORRIS, T. NAMSOO M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI J.Y. KIM, K.J. MA Z.A. IBRAHIM, B. KAMALUDDIN, W.A.T. WAN ABDULLAH Y. NING, Z. REN, F. SCIULLI J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, MARIUSZ PRZYBYCIEN, L. SUSZYCKI A. KOTANSKI, W. SLOMINSKI V. ADLER, U. BEHRENS, I. BLOCH, A. BONATO, K. BORRAS, N. COPPOLA, J. FOURLETOVA, A. GEISER, D. GLADKOV, P. GOTTLICHER, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, C. HORN, B. KAHLE, U. KOTZ, H. KOWALSKI, H. LIM, E. LOBODZINSKA, B. LOHR, R. MANKEL, I.-A. MELZER-PELLMANN, A. MONTANARI, C.N. NGUYEN, D. NOTZ, A.E. NUNCIO-QUIROZ, R. SANTAMARTA, U. SCHNEEKLOTH, A. SPIRIDONOV, H. STADIE, U. STOSSLEIN, D. SZUBA, J. SZUBA, T. THEEDT, G. WATT, G. WOLF, K. WRONA, C. YOUNGMAN, W. ZEUNER S. SCHLENSTEDT G. BARBAGLI, E. GALLO, P.G. PELFER A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV P.J. BUSSEY, A.T. DOYLE, W. DUNNE, J. FERRANDO, D.H. SAXON, I.O. SKILLICORN I. GIALAS T. GOSAU, U. HOLM, R. KLANNER, E. LOHRMANN, H. SALEHI, P. SCHLEPER, T. SCHORNER-SADENIUS, J. SZTUK, K. WICHMANN, K. WICK C. FOUDAS, C. FRY, K.R. LONG, A.D. TAPPER M. KATAOKA, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI A.N. BARAKBAEV, E.G. BOOS, A. DOSSANOV, N.S. POKROVSKIY, B.O. ZHAUTYKOV D. SON J. DE FAVEREAU, K. PIOTRZKOWSKI F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, J. TERRON, M. ZAMBRANA F. CORRIVEAU, C. LIU, R. WALSH, C. ZHOU T. TSURUGAI A. ANTONOV, B.A. DOLGOSHEIN, I. RUBINSKY, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV R.K. DEMENTIEV, P.F. ERMOLOV, L.K. GLADILIN, I.I. KATKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A. KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, S.A. ZOTKIN I. ABT, C. BUTTNER, A. CALDWELL, D. KOLLAR, W.B. SCHMIDKE, J. SUTIAK G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VAZQUEZ, L. WIGGERS N. BRUMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING P.D. ALLFREY, M.A. BELL, A.M. COOPER-SARKAR, A. COTTRELL, R.C.E. DEVENISH, B. FOSTER, C. GWENLAN, K. KORCSAK-GORZO, S. PATEL, V. ROBERFROID, A. ROBERTSON, P.B. STRAUB, C. URIBE-ESTRADA, R. WALCZAK P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, R. CIESIELSKI, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, M. TURCATO B.Y. OH, A. RAVAL, J. UKLEJA, J.J. WHITMORE Y. IGA G. D'AGOSTINI, G. MARINI, A. NIGRO J.E. COLE, J.C. HART H. ABRAMOWICZ, A. GABAREEN, R. INGBIR, S. KANANOV, A. LEVY M. KUZE R. HORI, S. KAGAWA, S. SHIMIZU, T. TAWARA R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO M. ARNEODO, M. RUSPA S. FOURLETOV, J.F. MARTIN S.K. BOUTLE, J.M. BUTTERWORTH, R. HALL-WILTON, T.W. JONES, J.H. LOIZIDES, M.R. SUTTON, C. TARGETT-ADAMS, M. WING B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J. NOWAK, J.M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, A.F. ZARNECKI M. ADAMUS, P. PLUCINSKI Y. EISENBERG, I. GILLER, D. HOCHMAN, U. KARSHON, M. ROSIN E. BROWNSON, T. DANIELSON, A. EVERETT, D. KCIRA, D.D. REEDER, P. RYAN, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, M. SOARES, J. STANDAGE, and J. WHYTE
Subjects: INCLUSIVE LEPTOPRODUCTION, Particle physics, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), HERA, ENERGY-FLOW, FOS: Physical sciences, Parton, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, DESIGN, 0103 physical sciences, ddc:530, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), CENTRAL TRACKING DETECTOR, LEPTON-PROTON-SCATTERING, ZEUS BARREL CALORIMETER, PARTON DISTRIBUTIONS, GLOBAL ANALYSIS, CONSTRUCTION, Quantum chromodynamics, Physics, Neutral current, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, Deep inelastic scattering, Pseudorapidity, High Energy Physics::Experiment, Lepton
Abstract: The distribution of the azimuthal angle of charged and neutral hadrons relative to the lepton plane has been studied for neutral current deep inelastic $ep$ scattering using an integrated luminosity of 45 pb-1 taken with the ZEUS detector at HERA. The measurements were made in the hadronic centre-of-mass system. The analysis exploits the energy-flow method, which allows the measurement to be made over a larger range of pseudorapidity compared to previous results. The dependence of the moments of the azimuthal distributions on the pseudorapidity and minimum transverse energy of the final-state hadrons are presented. Although the predictions from next-to-leading-order QCD describe the data better than do the Monte Carlo models incorporating leading-logarithm parton showers, they still fail to describe the magnitude of the asymmetries. This suggests that higher-order calculations may be necessary to describe these data., 10 pages, 4 figures, 4 tables
Published: 2007

17. Multijet production at low xbj in deep inelastic scattering at HERA

Author: Chekanov, S, Derrick, M, Magill, S, Musgrave, B, Nicholass, D, Repond, J, Yoshida, R, Mattingly, MCK, Jechow, M, Pavel, N, Molina, AGY, Antonelli, S, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Bindi, M, Boscherini, D, Bruni, A, Bruni, G, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, De Pasquale, S, Lacobucci, G, Margotti, A, Nania, R, Polini, A, Sartorelli, G, Zichichi, A, Bartsch, D, Brock, I, Goers, S, Hartmann, H, Hilger, E, Jakob, H-P, Juengst, M, Kind, OM, Nuncio-Quiroz, AE, Paul, E, Renner, R, Samson, U, Schoenberg, V, Shehzadi, R, Wlasenko, M, Brook, NH, Heath, GP, Morris, JD, Namsoo, T, Capua, M, Fazio, S, Mastroberardino, A, Schioppa, M, Susinno, G, Tassi, E, Kim, JY, Ma, KJ, Ibrahim, ZA, Kamaluddin, B, Abdullah, WATW, Ning, Y, Ren, Z, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Galas, A, Gil, M, Olkiewicz, K, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, Grabowska-Bold, I, Kisielewska, D, Lukasik, J, Przybycien, M, Suszycki, L, Kotanski, A, Slominski, W, Adler, V, Behrens, U, Bloch, I, Blohm, C, Bonato, A, Borras, K, Ciesielski, R, Coppola, N, Dossanov, A, Drugakov, V, Fourletova, J, Geiser, A, Gladkov, D, Goettlicher, P, Grebenyuk, J, Gregor, I, Haas, T, Hain, W, Horn, C, Huettmann, A, Kahle, B, Katkov, II, Klein, U, Koetz, U, Kowalski, H, Lobodzinska, E, Loehr, B, Mankel, R, Melzer-Pellmann, I-A, Miglioranzi, S, Montanari, A, Notz, D, Rinaldi, L, Roloff, P, Rubinsky, I, Santarnarta, R, Schneekloth, U, Spiridonov, A, Stadie, H, Szuba, D, Szuba, J, Theedt, T, Wolf, G, Wrona, K, Youngman, C, Zeuner, W, Lohmann, W, Schlenstedt, S, Barbagli, G, Gallo, E, Pelfer, PG, Bamberger, A, Dobur, D, Karstens, F, Vlasov, NN, Bussey, PJ, Doyle, AT, Dunne, W, Ferrando, J, Forrest, M, Saxon, DH, Skillicorn, IO, Gialas, I, Papageorgiu, K, Gosau, T, Holm, U, Klanner, R, Lohrmann, E, Salehi, H, Schleper, P, Schoerner-Sadenius, T, Sztuk, J, Wichmann, K, Wick, K, Foudas, C, Fry, C, Long, KR, Tapper, AD, Kataoka, M, Matsumoto, T, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, AN, Boos, EG, Pokrovskiy, NS, Zhautykov, BO, Aushev, V, Son, D, de Favereau, J, Piotrzkowski, K, Barreiro, F, Glasman, C, Jimenez, M, Labarga, L, del Peso, J, Ron, E, Soares, M, Terron, J, Zambrana, M, Corriveau, F, Liu, C, Walsh, R, Zhou, C, Tsurugai, T, Antonov, A, Dolgoshein, BA, Sosnovtse, V, Stifutkin, A, Suchkov, S, Dementiev, RK, Ermolov, PF, Gladilin, LK, Khein, LA, Korzhavina, IA, Kuzmin, VA, Levchenkol, BB, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Zotkin, DS, Zotkin, SA, Abt, I, Buettner, C, Caldwell, A, Kollar, D, Schmidke, WB, Sutiak, J, Grigorescu, G, Keramidas, A, Koffeman, E, Kooijman, P, Pellegrino, A, Tiecke, H, Vazquez, M, Wiggers, L, Bruemmer, N, Bylsma, B, Durkin, LS, Lee, A, Ling, TY, Allfrey, PD, Bell, MA, Cooper-Sarkar, AM, Cottrell, A, Devenish, RCE, Foster, B, Korcsak-Gorzo, K, Patel, S, Roberfroid, V, Robertson, A, Straub, PB, Uribe-Estrada, C, Walczak, R, Bellan, P, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, E, Dusini, S, Garfagnini, A, Limentani, S, Longhin, A, Stanco, L, Turcato, M, Oh, BY, Raval, A, Ukleja, J, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cole, JE, Hart, JC, Abramowicz, H, Gabareen, A, Ingbir, R, Kananov, S, Levy, A, Kuze, M, Maeda, J, Hori, R, Kagawa, S, Okazaki, N, Shimizu, S, Tawara, T, Hamatsu, R, Kaji, H, Kitamura, S, Ota, O, Ri, YD, Ferrero, MI, Monaco, V, Sacchi, R, Solano, A, Arneodo, M, Ruspa, M, Fourletov, S, Martin, JF, Boutle, SK, Butterworth, JM, Gwenlan, C, Jones, TW, Loizides, JH, Sutton, MR, Wing, M, Brzozowska, B, Ciborowski, J, Grzelak, G, Kulinski, P, Luzniak, P, Malka, J, Nowak, RJ, Pawlak, JM, Tymieniecka, T, Ukleja, A, Zarnecki, AF, Adamus, M, Plucinski, P, Eisenberg, Y, Giller, I, Hochman, D, Karshon, U, Rosin, M, Brownson, E, Danielson, T, Everett, A, Kcira, D, Reeder, DD, Ryan, P, Savin, AA, Smith, WH, Wolfe, F, Bhadra, S, Catterall, CD, Cui, Y, Hartner, G, Menary, S, Noor, U, Standage, J, Whyte, J, Collaboration, Z, S. CHEKANOV, M. DERRICK, S. MAGILL, S. MIGLIORANZI, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, N. PAVEL, A.G. YAGÜES MOLINA, S. ANTONELLI, P. ANTONIOLI, G. BARI, M. BASILE, L. BELLAGAMBA, M. BINDI, D. BOSCHERINI, A. BRUNI, G. BRUNI, L. CIFARELLI, F. CINDOLO, A. CONTIN, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, L. RINALDI, G. SARTORELLI, A. ZICHICHI, G. AGHUZUMTSYAN, D. BARTSCH, I. BROCK, S. GOERS, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JÜNGST, O.M. KIND, E. PAUL, J. RAUTENBERG, R. RENNER, U. SAMSON, V. SCHÖNBERG, M. WANG, M. WLASENKO, N.H. BROOK, G.P. HEATH, J.D. MORRIS, T. NAMSOO, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, K.J. MA, Z.A. IBRAHIM, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, V. ADLER, U. BEHRENS, I. BLOCH, A. BONATO, K. BORRAS, N. COPPOLA, J. FOURLETOVA, A. GEISER, D. GLADKOV, P. GÖTTLICHER, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, C. HORN, B. KAHLE, U. KÖTZ, H. KOWALSKI, H. LIM, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I.-A. MELZER-PELLMANN, A. MONTANARI, C.N. NGUYEN, D. NOTZ, A.E. NUNCIO-QUIROZ, R. SANTAMARTA, U. SCHNEEKLOTH, H. STADIE, U. STÖSSLEIN, D. SZUBA, J. SZUBA, T. THEEDT, G. WATT, G. WOLF, K. WRONA, C. YOUNGMAN, W. ZEUNER, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P.G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, W. DUNNE, J. FERRANDO, S. HANLON, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, T. GOSAU, U. HOLM, R. KLANNER, E. LOHRMANN, H. SALEHI, P. SCHLEPER, T. SCHÖRNER-SADENIUS, J. SZTUK, K. WICHMANN, K. WICK, C. FOUDAS, C. FRY, K.R. LONG, A.D. TAPPER, M. KATAOKA, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, A. DOSSANOV, N.S. POKROVSKIY, B.O. ZHAUTYKOV, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, J. TERRÓN, M. ZAMBRANA, F. CORRIVEAU, C. LIU, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, I. RUBINSKY, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F. ERMOLOV, L.K. GLADILIN, I.I. KATKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A. KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, S.A. ZOTKIN, I. ABT, C. BÜTTNER, A. CALDWELL, D. KOLLAR, X. LIU, W.B. SCHMIDKE, J. SUTIAK, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, P.D. ALLFREY, M.A. BELL, A.M. COOPER-SARKAR, A. COTTRELL, R.C.E. DEVENISH, B. FOSTER, C. GWENLAN, K. KORCSAK-GORZO, S. PATEL, V. ROBERFROID, A. ROBERTSON, P.B. STRAUB, C. URIBE-ESTRADA, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, R. CIESIELSKI, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, M. TURCATO, B.Y. OH, A. RAVAL, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.E. COLE, J.C. HART, H. ABRAMOWICZ, A. GABAREEN, R. INGBIR, S. KANANOV, A. LEVY, M. KUZE, R. HORI, S. KAGAWA, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, J.M. BUTTERWORTH, R. HALL-WILTON, T.W. JONES, J.H. LOIZIDES, M.R. SUTTON, C. TARGETT-ADAMS, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J. NOWAK, J.M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, J. UKLEJA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, I. GILLER, D. HOCHMAN, U. KARSHON, E. BROWNSON, T. DANIELSON, A. EVERETT, D. KÇIRA, D.D. REEDER, M. ROSIN, P. RYAN, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, M. SOARES, J. STANDAGE, and J. WHYTE
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, HERA, High Energy Physics, ZEUS Collaboration, JET CROSS-SECTIONS, LEPTON-NUCLEON SCATTERING, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, PERTURBATION-THEORY, HADRON-COLLISIONS, DIJET PRODUCTION, EP SCATTERING, QCD CASCADES, Elementary particle, Jet (particle physics), Inelastic scattering, 01 natural sciences, Particle identification, Nuclear physics, 0103 physical sciences, Nuclear Experiment, 010306 general physics, Physics, 010308 nuclear & particles physics, Momentum transfer, Perturbative QCD, Deep inelastic scattering, High Energy Physics::Experiment
Abstract: Dijet and trijet production in deep inelastic ep scattering has been measured in the phase space region 10 < Q(2) < 100 GeV2 and 10(-4) < x(Bj) < 10(-2) using an integrated luminosity of 82 pb(-1) collected by the ZEUS experiment. The high statistics have made possible detailed studies of multijet production at low xBj. The dependence of dijet and trijet production on the kinematic variables Q(2) and x(Bj) and on the jet variables E-T,HCM(jet) and eta(jet)(LAB) is well described by perturbative QCD calculations which include NLO corrections. To investigate possible deviations with respect to the collinear factorisation approximation used in the standard pQCD approach, measurements of the correlations between the two jets with highest E-T,HCM(jet) have been made. At low x(Bj), measurements of dijet production with low azimuthal separation are reproduced by the perturbative QCD calculations provided that higher-order terms (O(alpha(3)(s))) are accounted for. Such terms increase the predictions of pQCD calculations by up to one order of magnitude when the two jets with the highest E-T,HCM(jet1,2) are not balanced in transverse momentum. This demonstrates the importance of higher-order corrections in the low-x(Bj) region.
Published: 2007

18. Event shapes in deep inelastic scattering at HERA

Author: Chekanov, S, Derrick, M, Magill, S, Miglioranzi, S, Musgrave, B, Nicholass, D, Repond, J, Yoshida, R, Mattingly, MCK, Pavel, N, Molina, AGY, Antonelli, S, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Bindi, M, Boscherini, D, Bruni, A, Bruni, G, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, De Pasquale, S, Iacobucci, G, Margotti, A, Nania, R, Polini, A, Rinaldi, L, Sartorelli, G, Zichichi, A, Aghuzumtsyan, G, Bartsch, D, Brock, I, Goers, S, Hartmann, H, Hilger, E, Jakob, H-P, Juengst, M, Kind, OM, Paul, E, Rautenberg, J, Renner, R, Samson, U, Schoenberg, V, Wang, M, Wlasenko, M, Brook, NH, Heath, GP, Morris, JD, Namsoo, T, Capua, M, Fazio, S, Mastroberardino, A, Schioppa, M, Susinno, G, Tassi, E, Kim, JY, Ma, KJ, Ibrahim, ZA, Kamaluddin, B, Abdullah, WATW, Ning, Y, Ren, Z, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Galas, A, Gil, M, Olkiewicz, K, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, Grabowska-Bold, I, Kisielewska, D, Lukasik, J, Przybycien, M, Suszycki, L, Kotanski, A, Slominski, W, Adler, V, Behrens, U, Bloch, I, Bonato, A, Borras, K, Coppola, N, Fourletova, J, Geiser, A, Gladkov, D, Goettlicher, P, Gregor, I, Gutsche, O, Haas, T, Hain, W, Horn, C, Kahle, B, Koetz, U, Kowalski, H, Lim, H, Lobodzinska, E, Loehr, B, Mankel, R, Melzer-Pellmann, I-A, Montanari, A, Nguyen, CN, Notz, D, Nuncio-Quiroz, AE, Santamarta, R, Schneekloth, U, Stadie, H, Stoesslein, U, Szuba, D, Szuba, J, Theedt, T, Watt, G, Wolf, G, Wrona, K, Youngman, C, Zeuner, W, Schlenstedt, S, Barbagli, G, Gallo, E, Pelfer, PG, Bamberger, A, Dobur, D, Karstens, F, Vlasov, NN, Bussey, PJ, Doyle, AT, Dunne, W, Ferrando, J, Hanlon, S, Saxon, DH, Skillicorn, IO, Gialas, I, Gosau, T, Holm, U, Klanner, R, Lohrmann, E, Salehi, H, Schleper, P, Schoerner-Sadenius, T, Sztuk, J, Wichmann, K, Wick, K, Foudas, C, Fry, C, Long, KR, Tapper, AD, Kataoka, M, Matsumoto, T, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, AN, Boos, EG, Dossanov, A, Pokrovskiy, NS, Zhautykov, BO, Son, D, de Favereau, J, Piotrzkowski, K, Barreiro, F, Glasman, C, Jimenez, M, Labarga, L, del Peso, J, Ron, E, Terron, J, Zambrana, M, Corriveau, F, Liu, C, Walsh, R, Zhou, C, Tsurugai, T, Antonov, A, Dolgoshein, BA, Rubinsky, I, Sosnovtsev, V, Stifutkin, A, Suchkov, S, Dementiev, RK, Ermolov, R, Gladilin, LK, Katkov, II, Khein, LA, Korzhavina, IA, Kuzmin, VA, Levchenko, BB, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Zotkin, DS, Zotkin, SA, Abt, I, Buettner, C, Caldwell, A, Kollar, D, Liu, X, Schmidke, WB, Sutiak, J, Grigorescu, G, Keramidas, A, Koffeman, E, Kooijman, P, Pellegrino, A, Tiecke, H, Vazquez, M, Wiggers, L, Bruemmer, N, Bylsma, B, Durkin, LS, Lee, A, Ling, TY, Allfrey, PD, Bell, MA, Cooper-Sarkar, AM, Cottrell, A, Devenish, RCE, Foster, B, Gwenlan, C, Korcsak-Gorzo, K, Patel, S, Roberfroid, V, Robertson, A, Straub, PB, Uribe-Estrada, C, Walczak, R, Bellan, P, Bertolin, A, Brugnera, R, Carlin, R, Ciesielski, R, Dal Corso, F, Dusini, S, Garfagnini, A, Limentani, S, Longhin, A, Stanco, L, Turcato, M, Oh, BY, Raval, A, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cole, JE, Hart, JC, Abramowicz, H, Gabareen, A, Ingbir, R, Kananov, S, Levy, A, Kuze, M, Hori, R, Kagawa, S, Shimizu, S, Tawara, T, Hamatsu, R, Kaji, H, Kitamura, S, Ota, O, Ri, YD, Ferrero, MI, Monaco, V, Sacchi, R, Solano, A, Arneodo, M, Ruspa, M, Fourletov, S, Martin, JF, Butterworth, JM, Hall-Wilton, R, Jones, TW, Loizides, JH, Sutton, MR, Targett-Adams, C, Wing, M, Brzozowska, B, Ciborowski, J, Grzelak, G, Kulinski, P, Luzniak, P, Malka, J, Nowak, RJ, Pawlak, JM, Tymieniecka, T, Ukleja, A, Ukleja, J, Zarnecki, AF, Adamus, M, Plucinski, P, Eisenberg, Y, Giller, I, Hochman, D, Karshon, U, Brownson, E, Danielson, T, Everett, A, Kcira, D, Reeder, DD, Rosin, M, Ryan, P, Savin, AA, Smith, WH, Wolfe, H, Bhadra, S, Catterall, CD, Cui, Y, Hartner, G, Menary, S, Noor, U, Soares, M, Standage, J, Whyte, J, Collaboration, ZEUS, UCL, S. CHEKANOV, M. DERRICK, S. MAGILL, S. MIGLIORANZI, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, N. PAVEL, A.G. YAGÜES MOLINA, S. ANTONELLI, P. ANTONIOLI, G. BARI, M. BASILE, L. BELLAGAMBA, M. BINDI, D. BOSCHERINI, A. BRUNI, G. BRUNI, L. CIFARELLI, F. CINDOLO, A. CONTIN, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, L. RINALDI, G. SARTORELLI, A. ZICHICHI, G. AGHUZUMTSYAN, D. BARTSCH, I. BROCK, S. GOERS, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JÜNGST, O.M. KIND, E. PAUL, J. RAUTENBERG, R. RENNER, U. SAMSON, V. SCHÖNBERG, M. WANG, M. WLASENKO, N.H. BROOK, G.P. HEATH, J.D. MORRIS, T. NAMSOO, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, K.J. MA, Z.A. IBRAHIM, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, V. ADLER, U. BEHRENS, I. BLOCH, A. BONATO, K. BORRAS, N. COPPOLA, J. FOURLETOVA, A. GEISER, D. GLADKOV, P. GÖTTLICHER, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, C. HORN, B. KAHLE, U. KÖTZ, H. KOWALSKI, H. LIM, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I.-A. MELZER-PELLMANN, A. MONTANARI, C.N. NGUYEN, D. NOTZ, A.E. NUNCIO-QUIROZ, R. SANTAMARTA, U. SCHNEEKLOTH, H. STADIE, U. STÖSSLEIN, D. SZUBA, J. SZUBA, T. THEEDT, G. WATT, G. WOLF, K. WRONA, C. YOUNGMAN, W. ZEUNER, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P.G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, W. DUNNE, J. FERRANDO, S. HANLON, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, T. GOSAU, U. HOLM, R. KLANNER, E. LOHRMANN, H. SALEHI, P. SCHLEPER, T. SCHÖRNER-SADENIUS, J. SZTUK, K. WICHMANN, K. WICK, C. FOUDAS, C. FRY, K.R. LONG, A.D. TAPPER, M. KATAOKA, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, A. DOSSANOV, N.S. POKROVSKIY, B.O. ZHAUTYKOV, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, J. TERRÓN, M. ZAMBRANA, F. CORRIVEAU, C. LIU, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, I. RUBINSKY, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F. ERMOLOV, L.K. GLADILIN, I.I. KATKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A. KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, S.A. ZOTKIN, I. ABT, C. BÜTTNER, A. CALDWELL, D. KOLLAR, X. LIU, W.B. SCHMIDKE, J. SUTIAK, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, P.D. ALLFREY, M.A. BELL, A.M. COOPER-SARKAR, A. COTTRELL, R.C.E. DEVENISH, B. FOSTER, C. GWENLAN, K. KORCSAK-GORZO, S. PATEL, V. ROBERFROID, A. ROBERTSON, P.B. STRAUB, C. URIBE-ESTRADA, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, R. CIESIELSKI, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, M. TURCATO, B.Y. OH, A. RAVAL, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.E. COLE, J.C. HART, H. ABRAMOWICZ, A. GABAREEN, R. INGBIR, S. KANANOV, A. LEVY, M. KUZE, R. HORI, S. KAGAWA, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, J.M. BUTTERWORTH, R. HALL-WILTON, T.W. JONES, J.H. LOIZIDES, M.R. SUTTON, C. TARGETT-ADAMS, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J. NOWAK, J.M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, J. UKLEJA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, I. GILLER, D. HOCHMAN, U. KARSHON, E. BROWNSON, T. DANIELSON, A. EVERETT, D. KÇIRA, D.D. REEDER, M. ROSIN, P. RYAN, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, M. SOARES, J. STANDAGE, and J. WHYTE
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, HERA, FOS: Physical sciences, 01 natural sciences, CROSS-SECTIONS, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, POWER CORRECTIONS, Consistency (statistics), LEPTON-NUCLEON SCATTERING, 0103 physical sciences, ddc:530, 010306 general physics, Boson, Quantum chromodynamics, Physics, Luminosity (scattering theory), ZEUS (particle detector), Neutral current, 010308 nuclear & particles physics, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, PARTON DISTRIBUTIONS, HADRON-COLLISIONS, HARD PROCESSES, QCD, Deep inelastic scattering, High Energy Physics::Experiment
Abstract: Mean values and differential distributions of event-shape variables have been studied in neutral current deep inelastic scattering using an integrated {luminosity} of 82.2 pb$^{-1}$ collected with the ZEUS detector at HERA. The kinematic range was $80 < Q^2 < 20 480\gev^2$ and $0.0024 < x < 0.6$, where $Q^2$ is the virtuality of the exchanged boson and $x$ is the Bjorken variable. The data are compared with a model based on a combination of next-to-leading-order QCD calculations with next-to-leading-logarithm corrections and the Dokshitzer-Webber non-perturbative power corrections. The power-correction method provides a reasonable description of the data for all event-shape variables studied. Nevertheless, the lack of consistency of the determination of $��_s$ and of the non-perturbative parameter of the model, $\albar$, suggests the importance of higher-order processes that are not yet included in the model., 35 pages, 11 figures
Published: 2007

19. Measurement of high-Q(2) deep inelastic scattering cross sections with a longitudinally polarised positron beam at HERA

Author: S. CHEKANOV, M. DERRICK, S. MAGILL, S. MIGLIORANZI, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M. C. K. MATTINGLY, N. PAVEL, A. G. YAGUES MOLINA, S. ANTONELLI, P. ANTONIOLI, G. BARI, L. BELLAGAMBA, M. BINDI, D. BOSCHERINI, A. BRUNI, G. BRUNI, F. CINDOLO, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, G. AGHUZUMTSYAN, D. BARTSCH, I. BROCK, S. GOERS, H. HARTMANN, E. HILGER, H. P. JAKOB, M. JUENGST, O. M. KIND, E. PAUL, J. RAUTENBERG, R. RENNER, U. SAMSON, V. SCHOENBERG, M. WANG, M. WLASENKO, N. H. BROOK, G. P. HEATH, J. D. MORRIS, T. NAMSOO, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J. Y. KIM, K. J. MA, Z. A. IBRAHIM, B. KAMALUDDIN, W. A. T. WAN ABDULLAH, Y. NING, Z. REN, W. B. SCHMIDKE, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, V. ADLER, U. BEHRENS, I. BLOCH, A. BONATO, K. BORRAS, N. COPPOLA, J. FOURLETOVA, A. GEISER, D. GLADKOV, P. GOETTLICHER, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, C. HORN, B. KAHLE, U. KOETZ, H. KOWALSKI, H. LIM, E. LOBODZINSKA, B. LOEHR, R. MANKEL, I. A. MELZER PELLMANN, A. MONTANARI, C. N. NGUYEN, D. NOTZ, A. E. NUNCIO QUIROZ, R. SANTAMARTA, U. SCHNEEKLOTH, H. STADIE, U. STOESSLEIN, D. SZUBA, J. SZUBA, T. THEEDT, G. WATT, G. WOLF, K. WRONA, C. YOUNGMAN, W. ZEUNER, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, A. BENEN, D. DOBUR, F. KARSTENS, N. N. VLASOV, P. J. BUSSEY, A. T. DOYLE, W. DUNNE, J. FERRANDO, D. H. SAXON, I. O. SKILLICORN, I. GIALAS, T. GOSAU, U. HOLM, R. KLANNER, E. LOHRMANN, H. SALEHI, P. SCHLEPER, T. SCHOERNER SADENIUS, J. SZTUK, K. WICHMANN, K. WICK, C. FOUDAS, C. FRY, K. R. LONG, A. D. TAPPER, M. KATAOKA, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A. N. BARAKBAEV, E. G. BOOS, A. DOSSANOV, N. S. POKROVSKIY, B. O. ZHAUTYKOV, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, J. TERRON, M. ZAMBRANA, F. CORRIVEAU, C. LIU, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B. A. DOLGOSHEIN, I. RUBINSKY, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R. K. DEMENTIEV, P. F. ERMOLOV, L. K. GLADILIN, I. I. KATKOV, L. A. KHEIN, I. A. KORZHAVINA, V. A. KUZMIN, B. B. LEVCHENKO, O. Y.U. LUKINA, A. S. PROSKURYAKOV, L. M. SHCHEGLOVA, D. S. ZOTKIN, S. A. ZOTKIN, I. ABT, C. BUTTNER, A. CALDWELL, D. KOLLAR, X. LIU, J. SUTIAK, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, E. MADDOX, H. TIECKE, M. VAZQUEZ, L. WIGGERS, N. BRUMMER, B. BYLSMA, L. S. DURKIN, A. LEE, T. Y. LING, P. D. ALLFREY, M. A. BELL, A. M. COOPER SARKAR, A. COTTRELL, R. C. E. DEVENISH, B. FOSTER, C. GWENLAN, K. KORCSAK GORZO, S. PATEL, V. ROBERFROID, A. ROBERTSON, P. B. STRAUB, C. URIBE ESTRADA, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, R. CIESIELSKI, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, M. TURCATO, B. Y. OH, A. RAVAL, J. J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J. E. COLE, J. C. HART, H. ABRAMOWICZ, A. GABAREEN, S. KANANOV, A. LEVY, M. KUZE, R. HORI, S. KAGAWA, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y. D. RI, M. I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, A. STAIANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J. F. MARTIN, J. M. BUTTERWORTH, R. HALL WILTON, T. W. JONES, J. H. LOIZIDES, M. R. SUTTON, C. TARGETT ADAMS, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R. J. NOWAK, J. M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, J. UKLEJA, A. F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, D. HOCHMAN, U. KARSHON, E. BROWNSON, T. DANIELSON, A. EVERETT, D. KCIRA, D. D. REEDER, M. ROSIN, P. RYAN, A. A. SAVIN, W. H. SMITH, H. WOLFE, S. BHADRA, C. D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, M. SOARES, J. STANDAGE, J. WHYTE, BASILE, MAURIZIO, CIFARELLI, LUISA, CONTIN, ANDREA, RINALDI, LORENZO, SARTORELLI, GABRIELLA, ZICHICHI, ANTONINO, S. CHEKANOV, M. DERRICK, S. MAGILL, S. MIGLIORANZI, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, N. PAVEL, A.G. YAGUES MOLINA, S. ANTONELLI, P. ANTONIOLI, G. BARI, M. BASILE, L. BELLAGAMBA, M. BINDI, D. BOSCHERINI, A. BRUNI, G. BRUNI, L. CIFARELLI, F. CINDOLO, A. CONTIN, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, L. RINALDI, G. SARTORELLI, A. ZICHICHI, G. AGHUZUMTSYAN, D. BARTSCH, I. BROCK, S. GOERS, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JUENGST, O.M. KIND, E. PAUL, J. RAUTENBERG, R. RENNER, U. SAMSON, V. SCHOENBERG, M. WANG, M. WLASENKO, N.H. BROOK, G.P. HEATH, J.D. MORRIS, T. NAMSOO, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, K.J. MA, Z.A. IBRAHIM, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, W.B. SCHMIDKE, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, V. ADLER, U. BEHRENS, I. BLOCH, A. BONATO, K. BORRAS, N. COPPOLA, J. FOURLETOVA, A. GEISER, D. GLADKOV, P. GOETTLICHER, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, C. HORN, B. KAHLE, U. KOETZ, H. KOWALSKI, H. LIM, E. LOBODZINSKA, B. LOEHR, R. MANKEL, I.-A. MELZER-PELLMANN, A. MONTANARI, C.N. NGUYEN, D. NOTZ, A.E. NUNCIO-QUIROZ, R. SANTAMARTA, U. SCHNEEKLOTH, H. STADIE, U. STOESSLEIN, D. SZUBA, J. SZUBA, T. THEEDT, G. WATT, G. WOLF, K. WRONA, C. YOUNGMAN, W. ZEUNER, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, A. BENEN, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, W. DUNNE, J. FERRANDO, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, T. GOSAU, U. HOLM, R. KLANNER, E. LOHRMANN, H. SALEHI, P. SCHLEPER, T. SCHOERNER-SADENIUS, J. SZTUK, K. WICHMANN, K. WICK, C. FOUDAS, C. FRY, K.R. LONG, A.D. TAPPER, M. KATAOKA, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, A. DOSSANOV, N.S. POKROVSKIY, B.O. ZHAUTYKOV, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, J. TERRON, M. ZAMBRANA, F. CORRIVEAU, C. LIU, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, I. RUBINSKY, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F. ERMOLOV, L.K. GLADILIN, I.I. KATKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A. KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, S.A. ZOTKIN, I. ABT, C. BUTTNER, A. CALDWELL, D. KOLLAR, X. LIU, J. SUTIAK, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, E. MADDOX, H. TIECKE, M. VAZQUEZ, L. WIGGERS, N. BRUMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, P.D. ALLFREY, M.A. BELL, A.M. COOPER-SARKAR, A. COTTRELL, R.C.E. DEVENISH, B. FOSTER, C. GWENLAN, K. KORCSAK-GORZO, S. PATEL, V. ROBERFROID, A. ROBERTSON, P.B. STRAUB, C. URIBE-ESTRADA, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, R. CIESIELSKI, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, M. TURCATO, B.Y. OH, A. RAVAL, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.E. COLE, J.C. HART, H. ABRAMOWICZ, A. GABAREEN, S. KANANOV, A. LEVY, M. KUZE, R. HORI, S. KAGAWA, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, A. STAIANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, J.M. BUTTERWORTH, R. HALL-WILTON, T.W. JONES, J.H. LOIZIDES, M.R. SUTTON, C. TARGETT-ADAMS, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J. NOWAK, J.M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, J. UKLEJA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, D. HOCHMAN, U. KARSHON, E. BROWNSON, T. DANIELSON, A. EVERETT, D. KCIRA, D.D. REEDER, M. ROSIN, P. RYAN, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, M. SOARES, J. STANDAGE, and J. WHYTE
Subjects: MONTE-CARLO GENERATOR, MICRO VERTEX DETECTOR, High Energy Physics, HERA, ZEUS Collaboration, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, Micro Vertex Detector, ENERGY EP COLLISIONS, QCD ANALYSIS, PARTON DISTRIBUTIONS, JET FRAGMENTATION, 1ST MEASUREMENT, PROTON COLLISIONS
Published: 2006

20. Inclusive-Jet and Dijet Cross Sections in Deep Inelastic Scattering at HERA

Author: ZEUS Collaboration, S. Chekanov, M. Derrick, S. Magill, S. Miglioranzi1, B. Musgrave, D. Nicholass1, J. Repond, R. Yoshida, M. C. K. Mattingly, N. Pavel✠, A. G. Yagües Molina, P. Antonioli, G. Bari, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, F. Cindolo, M. Corradi2, S. De Pasquale, G. Iacobucci, A. Margotti, R. Nania, A. Polini, A. Zichichi, G. Aghuzumtsyan, D. Bartsch, I. Brock, S. Goers, H. Hartmann, E. Hilger, H. P. Jakob, M. Jüngst, O. M. Kind, E. Paul3, J. Rautenberg4, R. Renner, U. Samson5, V. Schönberg, M. Wang, M. Wlasenko, N. H. Brook, G. P. Heath, J. D. Morris, T. Namsoo, M. Capua, S. Fazio, A. Mastroberardino, M. Schioppa, G. Susinno, E. Tassi, J. Y. Kim6, K. J. Ma7, Z. A. Ibrahim, B. Kamaluddin, W. A. T. Wan Abdullah, Y. Ning, Z. Ren, F. Sciulli, J. Chwastowski, A. Eskreys, J. Figiel, A. Galas, M. Gil, K. Olkiewicz, P. Stopa, L. Zawiejski, L. Adamczyk, T. Bołd, I. Grabowska Bołd, D. Kisielewska, J. Łukasik, M. Przybycień, L. Suszycki, A. Kotański8, W. Słomiński, V. Adler, U. Behrens, I. Bloch, A. Bonato, K. Borras, N. Coppola, J. Fourletova, A. Geiser, D. Gladkov, P. Göttlicher9, I. Gregor, O. Gutsche, T. Haas, W. Hain, C. Horn, B. Kahle, U. Kötz, H. Kowalski, H. Lim10, E. Lobodzinska, B. Löhr, R. Mankel, I. A. Melzer Pellmann, A. Montanari, C. N. Nguyen, D. Notz, A. E. Nuncio Quiroz, R. Santamarta, U. Schneekloth, A. Spiridonov11, H. Stadie, U. Stösslein, D. Szuba12, J. Szuba13, T. Theedt, G. Watt, G. Wolf, K. Wrona, C. Youngman, W. Zeuner, S. Schlenstedt, G. Barbagli, E. Gallo, P. G. Pelfer, A. Bamberger, D. Dobur, F. Karstens, N. N. Vlasov14, P. J. Bussey, A. T. Doyle, W. Dunne, J. Ferrando, D. H. Saxon, I. O. Skillicorn, I. Gialas15, T. Gosau, U. Holm, R. Klanner, E. Lohrmann, H. Salehi, P. Schleper, T. Schörner Sadenius, J. Sztuk, K. Wichmann, K. Wick, C. Foudas, C. Fry, K. R. Long, A. D. Tapper, M. Kataoka16, T. Matsumoto, K. Nagano, K. Tokushuku17, S. Yamada, Y. Yamazaki, A. N. Barakbaev, E. G. Boos, A. Dossanov, N. S. Pokrovskiy, B. O. Zhautykov, D. Son, J. de Favereau, K. Piotrzkowski, F. Barreiro, C. Glasman18, M. Jimenez, L. Labarga, J. del Peso, E. Ron, J. Terrón, M. Zambrana, F. Corriveau, C. Liu, R. Walsh, C. Zhou, T. Tsurugai, A. Antonov, B. A. Dolgoshein, I. Rubinsky, V. Sosnovtsev, A. Stifutkin, S. Suchkov, R. K. Dementiev, P. F. Ermolov, L. K. Gladilin, I. I. Katkov, L. A. Khein, I. A. Korzhavina, V. A. Kuzmin, B. B. Levchenko19, O. Y.u. Lukina, A. S. Proskuryakov, L. M. Shcheglova, D. S. Zotkin, S. A. Zotkin, I. Abt, C. Büttner, A. Caldwell, D. Kollar, W. B. Schmidke, J. Sutiak, G. Grigorescu, A. Keramidas, E. Koffeman, P. Kooijman, A. Pellegrino, H. Tiecke, M. Vázquez20, L. Wiggers, N. Brümmer, B. Bylsma, L. S. Durkin, A. Lee, T. Y. Ling, P. D. Allfrey, M. A. Bell, A. M. Cooper Sarkar, A. Cottrell, R. C. E. Devenish, B. Foster, C. Gwenlan21, K. Korcsak Gorzo, S. Patel, V. Roberfroid22, A. Robertson, P. B. Straub, C. Uribe Estrada, R. Walczak, P. Bellan, A. Bertolin, R. Brugnera, R. Carlin, R. Ciesielski, F. Dal Corso, S. Dusini, A. Garfagnini, S. Limentani, A. Longhin, L. Stanco, M. Turcato, B. Y. Oh, A. Raval, J. Ukleja23, J. J. Whitmore, Y. Iga, G. D'Agostini, G. Marini, A. Nigro, J. E. Cole, J. C. Hart, H. Abramowicz24, A. Gabareen, R. Ingbir, S. Kananov, A. Levy, M. Kuze, R. Hori, S. Kagawa25, S. Shimizu, T. Tawara, R. Hamatsu, H. Kaji, S. Kitamura26, O. Ota, Y. D. Ri, M. I. Ferrero, V. Monaco, R. Sacchi, A. Solano, M. Arneodo, M. Ruspa, S. Fourletov, J. F. Martin, S. K. Boutle15, J. M. Butterworth, R. Hall Wilton20, T. W. Jones, J. H. Loizides, M. R. Sutton27, C. Targett Adams, M. Wing, B. Brzozowska, J. Ciborowski28, G. Grzelak, P. Kulinski, P. Łużniak29, J. Malka29, R. J. Nowak, J. M. Pawlak, T. Tymieniecka, A. Ukleja30, A. F. Żarnecki, M. Adamus, P. Plucinski31, Y. Eisenberg, I. Giller, D. Hochman, U. Karshon, M. Rosin, E. Brownson, T. Danielson, A. Everett, D. Kçira, D. D. Reeder, P. Ryan, A. A. Savin, W. H. Smith, H. Wolfe, S. Bhadra, C. D. Catterall, Y. Cui, G. Hartner, S. Menary, U. Noor, M. Soares, J. Standage, J. Whyte, ANTONELLI, STEFANO, BASILE, MAURIZIO, BINDI, MARCELLO, CIFARELLI, LUISA, CONTIN, ANDREA, RINALDI, LORENZO, SARTORELLI, GABRIELLA, UCL, ZEUS Collaboration, S. Chekanov, M. Derrick, S. Magill, S. Miglioranzi1, B. Musgrave, D. Nicholass1, J. Repond, R. Yoshida, M.C.K. Mattingly, N. Pavel✠, A.G. Yagües Molina, S. Antonelli, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, M. Bindi, D. Boscherini, A. Bruni, G. Bruni, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi2, S. De Pasquale, G. Iacobucci, A. Margotti, R. Nania, A. Polini, L. Rinaldi, G. Sartorelli, A. Zichichi, G. Aghuzumtsyan, D. Bartsch, I. Brock, S. Goer, H. Hartmann, E. Hilger, H.-P. Jakob, M. Jüngst, O.M. Kind, E. Paul3, J. Rautenberg4, R. Renner, U. Samson5, V. Schönberg, M. Wang, M. Wlasenko, N.H. Brook, G.P. Heath, J.D. Morri, T. Namsoo, M. Capua, S. Fazio, A. Mastroberardino, M. Schioppa, G. Susinno, E. Tassi, J.Y. Kim6, K.J. Ma7, Z.A. Ibrahim, B. Kamaluddin, W.A.T. Wan Abdullah, Y. Ning, Z. Ren, F. Sciulli, J. Chwastowski, A. Eskrey, J. Figiel, A. Gala, M. Gil, K. Olkiewicz, P. Stopa, L. Zawiejski, L. Adamczyk, T. Bołd, I. Grabowska-Bołd, D. Kisielewska, J. Łukasik, M. Przybycień, L. Suszycki, A. Kotański8, W. Słomiński, V. Adler, U. Behren, I. Bloch, A. Bonato, K. Borra, N. Coppola, J. Fourletova, A. Geiser, D. Gladkov, P. Göttlicher9, I. Gregor, O. Gutsche, T. Haa, W. Hain, C. Horn, B. Kahle, U. Kötz, H. Kowalski, H. Lim10, E. Lobodzinska, B. Löhr, R. Mankel, I.-A. Melzer-Pellmann, A. Montanari, C.N. Nguyen, D. Notz, A.E. Nuncio-Quiroz, R. Santamarta, U. Schneekloth, A. Spiridonov11, H. Stadie, U. Stösslein, D. Szuba12, J. Szuba13, T. Theedt, G. Watt, G. Wolf, K. Wrona, C. Youngman, W. Zeuner, S. Schlenstedt, G. Barbagli, E. Gallo, P.G. Pelfer, A. Bamberger, D. Dobur, F. Karsten, N.N. Vlasov14, P.J. Bussey, A.T. Doyle, W. Dunne, J. Ferrando, D.H. Saxon, I.O. Skillicorn, I. Gialas15, T. Gosau, U. Holm, R. Klanner, E. Lohrmann, H. Salehi, P. Schleper, T. Schörner-Sadeniu, J. Sztuk, K. Wichmann, K. Wick, C. Fouda, C. Fry, K.R. Long, A.D. Tapper, M. Kataoka16, T. Matsumoto, K. Nagano, K. Tokushuku17, S. Yamada, Y. Yamazaki, A.N. Barakbaev, E.G. Boo, A. Dossanov, N.S. Pokrovskiy, B.O. Zhautykov, D. Son, J. de Favereau, K. Piotrzkowski, F. Barreiro, C. Glasman18, M. Jimenez, L. Labarga, J. del Peso, E. Ron, J. Terrón, M. Zambrana, F. Corriveau, C. Liu, R. Walsh, C. Zhou, T. Tsurugai, A. Antonov, B.A. Dolgoshein, I. Rubinsky, V. Sosnovtsev, A. Stifutkin, S. Suchkov, R.K. Dementiev, P.F. Ermolov, L.K. Gladilin, I.I. Katkov, L.A. Khein, I.A. Korzhavina, V.A. Kuzmin, B.B. Levchenko19, O.Yu. Lukina, A.S. Proskuryakov, L.M. Shcheglova, D.S. Zotkin, S.A. Zotkin, I. Abt, C. Büttner, A. Caldwell, D. Kollar, W.B. Schmidke, J. Sutiak, G. Grigorescu, A. Keramida, E. Koffeman, P. Kooijman, A. Pellegrino, H. Tiecke, M. Vázquez20, L. Wigger, N. Brümmer, B. Bylsma, L.S. Durkin, A. Lee, T.Y. Ling, P.D. Allfrey, M.A. Bell, A.M. Cooper-Sarkar, A. Cottrell, R.C.E. Devenish, B. Foster, C. Gwenlan21, K. Korcsak-Gorzo, S. Patel, V. Roberfroid22, A. Robertson, P.B. Straub, C. Uribe-Estrada, R. Walczak, P. Bellan, A. Bertolin, R. Brugnera, R. Carlin, R. Ciesielski, F. Dal Corso, S. Dusini, A. Garfagnini, S. Limentani, A. Longhin, L. Stanco, M. Turcato, B.Y. Oh, A. Raval, J. Ukleja23, J.J. Whitmore, Y. Iga, G. D'Agostini, G. Marini, A. Nigro, J.E. Cole, J.C. Hart, H. Abramowicz24, A. Gabareen, R. Ingbir, S. Kananov, A. Levy, M. Kuze, R. Hori, S. Kagawa25, S. Shimizu, T. Tawara, R. Hamatsu, H. Kaji, S. Kitamura26, O. Ota, Y.D. Ri, M.I. Ferrero, V. Monaco, R. Sacchi, A. Solano, M. Arneodo, M. Ruspa, S. Fourletov, J.F. Martin, S.K. Boutle15, J.M. Butterworth, R. Hall-Wilton20, T.W. Jone, J.H. Loizide, M.R. Sutton27, C. Targett-Adam, M. Wing, B. Brzozowska, J. Ciborowski28, G. Grzelak, P. Kulinski, P. Łużniak29, J. Malka29, R.J. Nowak, J.M. Pawlak, T. Tymieniecka, A. Ukleja30, A.F. Żarnecki, M. Adamu, P. Plucinski31, Y. Eisenberg, I. Giller, D. Hochman, U. Karshon, M. Rosin, E. Brownson, T. Danielson, A. Everett, D. Kçira, D.D. Reeder, P. Ryan, A.A. Savin, W.H. Smith, H. Wolfe, S. Bhadra, C.D. Catterall, Y. Cui, G. Hartner, S. Menary, U. Noor, M. Soare, J. Standage, and J. Whyte
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, HERA, FOS: Physical sciences, Parton, Jet (particle physics), COLOR DIPOLE MODEL, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), LEPTON-NUCLEON SCATTERING, 0103 physical sciences, ddc:530, High Energy Physics, QCD ANALYSIS, 010306 general physics, Quantum chromodynamics, Physics, ZEUS (particle detector), E+E-PHYSICS, Neutral current, 010308 nuclear & particles physics, BREIT FRAME, ZEUS BARREL CALORIMETER, NLO QCD, Deep inelastic scattering, CENTRAL TRACKING DETECTOR, Gluon, ZEUS Collaboration, HADRON-COLLISIONS, High Energy Physics::Experiment
Abstract: Inclusive-jet and dijet differential cross sections have been measured in neutral current deep inelastic ep scattering for exchanged boson virtualities Q2 > 125 GeV2 with the ZEUS detector at HERA using an integrated luminosity of 82 pb-1. Jets were identified in the Breit frame using the kt cluster algorithm. Jet cross sections are presented as functions of several kinematic and jet variables. The results are also presented in different regions of Q2. Next-to-leading-order QCD calculations describe the measurements well. Regions of phase space where the theoretical uncertainties are small have been identified. Measurements in these regions have the potential to constrain the gluon density in the proton when used as inputs to global fits of the proton parton distribution functions., 31 pages, 12 figures, revised version with small modifications to the text, accepted by Nuclear Physics B
Published: 2006

21. Study of deep inelastic inclusive and diffractive scattering with the ZEUS forward plug calorimeter

Author: Chekanov, S., Derrick, M., Magill, S., Miglioranzi, S., Musgrave, B., Repond, J., Yoshida, R., Mattingly, Mck, Pavel, N., Molina, Agy, Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Romeo, Gc, Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., De Pasquale, S., Giusti, P., Iacobucci, G., Margotti, A., Montanari, A., Nania, R., Palmonari, F., Pesci, A., Polini, A., Rinaldi, L., Sartorelli, G., Zichichi, A., Aghuzumtsyan, G., Bartsch, D., Brock, I., Goers, S., Hartmann, H., Hilger, E., Irrgang, P., Jakob, Hp, Kind, O., Meyer, U., Paul, E., Rautenberg, J., Renner, R., Voss, Kc, Wang, M., Wlasenko, M., Bailey, Ds, Brook, Nh, Cole, Je, Heath, Gp, Namsoo, T., Robins, S., Capua, M., Mastroberardino, A., Schioppa, M., Susinno, G., Tassi, E., Kim, Jy, Ma, Kj, Helbich, M., Ning, Y., Ren, Z., Schmidke, Wb, Sciulli, E., Chwastowski, J., Eskreys, A., Figiel, J., Galas, A., Olkiewicz, K., Stopa, P., Szuba, D., Zawiejski, L., Adamczyk, L., Bold, T., Grabowska Bold, I., Kisielewska, D., Kowal, Am, Lukasik, J., Przybycien, M., Suszycki, L., Szuba, J., Kotanski, A., Slominski, W., Adler, V., Behrens, U., Bloch, I., Borras, K., Cassel, Dg, Drews, G., Fourletova, J., Geiser, A., Gladkov, D., Goebel, F., Gottlicher, P., Diaz, Rg, Gutsche, O., Haas, T., Hain, W., Horn, C., Kahle, B., Kasemann, M., Kotz, U., Kowalski, H., Kramberger, G., Lelas, D., Lim, H., Lohr, B., Mankel, R., Martinez, M., Melzer Pellmann IA, Nguyen, Cn, Notz, D., Nuncio Quiroz AE, Raval, A., Santamarta, R., Schneekloth, U., Stosslein, U., Wolf, G., Youngman, C., Zeuner, W., Schlenstedt, S., Barbagli, G., Gallo, E., Genta, C., Pelfer, Pg, Bamberger, A., Benen, A., Karstens, F., Dobur, D., Vlasov, Nn, Bussey, Pj, Doyle, At, Ferr, o. J., Hamilton, J., Hanlon, S., Saxon, Dh, Skillicorn, Io, Gialas, I., Carli, T., Gosau, T., Holm, U., Krumnack, N., Lohrmann, E., Milite, M., Salehi, H., Schleper, P., Schorner Sadenius, T., Stonjek, S., Wichmann, K., Wick, K., Ziegler, A., Collins Tooth, C., Foudas, C., Fry, C., Goncalo, R., Long, Kr, Tapper, Ad, Kataoka, M., Nagano, K., Tokushuku, K., Yamada, S., Yamazakai, Y., Barakbaev, An, Boos, Eg, Pokrovskiy, Ns, Zhautykov, Bo, Son, D., de Favereau, J., Piotrzkowski, K., Barreiro, F., Glasman, C., Gonzalez, O., Jimenez, M., Labarga, L., del Peso, J., Terron, J., Zambrana, M., Barbi, M., Corriveau, F., Liu, C., Padhi, S., Plamondon, M., Stairs, Dg, Walsh, R., Zhou, C., Tsurugai, T., Antonov, A., Danilov, P., Dolgoshein, Ba, Sosnovtsev, V., Stifutkin, A., Suchkov, S., Dementiev, Rk, Ermolov, R., Gladilin, Lk, Katkov, Ii, Khein, La, Korzhavina, Ia, Kuzmin, Va, Levchenko, Bb, Lukina, Oy, Proskuryakov, As, Shcheglova, Lm, Zotkin, Ds, Zotkin, Sa, Abt, I., Buttner, C., Caldwell, A., Liu, X., Sutiak, J., Coppola, N., Grigorescu, G., Grijpink, S., Keramidas, A., Koffeman, E., Kooijman, P., Maddox, E., Pellegrino, A., Schagen, S., Tiecke, H., Vazquez, M., Wiggers, L., de Wolf, E., Brummer, N., Bylsma, B., Durkin, Ls, Ling, Ty, Allfrey, Pd, Bell, Ma, Cooper Sarkar AM, Cottrell, A., Devenish, Rce, Foster, B., Grzelak, G., Gwenlan, C., Kohno, T., Patel, S., Straub, Pb, Walczak, R., Bellan, P., Bertolin, A., Brugnera, R., Carlin, R., Ciesielski, R., Dal Corso, F., Dusini, S., Garfagnini, A., Limentani, S., Longhin, A., Stanco, L., Turcato, M., Heaphy, Ea, Metlica, F., Oh, By, Whitmore, Jj, Iga, Y., D'Agostini, G., Marini, G., Nigro, A., Hart, Jc, Abramowicz, H., Gabareen, A., Groys, M., Kananov, S., Kreisel, A., Levy, A., Kuze, M., Kagawa, S., Tawara, T., Hamatsu, R., Kaji, H., Kitamura, S., Matsuzawa, K., Ota, O., Ri, Yd, Costa, Marco, Ferrero, Maria Italia, Monaco, Vincenzo, Sacchi, Roberto, Solano, Ada Maria, Arneodo, M., Ruspa, M., Fourletov, S., Koop, T., Martin, Jf, Mirea, A., Butterworth, Jm, Hall Wilton, R., Jones, Tw, Loizides, Jh, Sutton, Mr, Targett Adams, C., Wing, M., Ciborowski, J., Kulinski, P., Luzniak, P., Malka, J., Nowak, Rj, Pawlak, Jm, Sztuk, J., Tymieniecka, T., Tyszkiewicz, A., Ukleja, A., Ukleja, J., Zarnecki, Af, Adamus, M., Plucinski, P., Eisenberg, Y., Hochman, D., Karshon, U., Lightwood, Ms, Everett, A., Kcira, D., Lammers, S., Li, L., Reeder, Dd, Rosin, M., Ryan, P., Savin, Aa, Smith, Wh, Dhawan, S., Bhadra, S., Catterall, Cd, Cui, Y., Hartner, G., Menary, S., Noor, U., Soares, M., Age, J., Whyte, J., S. Chekanov, M. Derrick, D. Krakauer, J.H. Loizides 1, S. Magill, B. Musgrave, J. Repond, R. Yoshida, M.C.K. Mattingly, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, A. Margotti, A. Montanari, R. Nania, F. Palmonari, A. Pesci, A. Polini, L. Rinaldi, G. Sartorelli, A. Zichichi, G. Aghuzumtsyan, D. Bartsch, I. Brock, S. Goer, H. Hartmann, E. Hilger, P. Irrgang, and UCL
Subjects: Nuclear and High Energy Physics, Particle physics, LOW X, Photon, MONTE-CARLO GENERATOR, HERA, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, Pomeron, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, Factorization, NUCLEON SCATTERING, 0103 physical sciences, 010306 general physics, Physics, 010308 nuclear & particles physics, Scattering, Optical theorem, Deep inelastic scattering, CENTRAL TRACKING DETECTOR, EP SCATTERING, PERTURBATION-THEORY, BARREL CALORIMETER, High Energy Physics::Experiment, Perturbation theory (quantum mechanics), EXCLUSIVE ELECTROPRODUCTION, CROSS-SECTION
Abstract: Deep inelastic scattering and its diffractive component, ep -> e'gamma*p ->e'XN, have been studied at HERA with the ZEUS detector using an integrated luminosity of 4.2 pb-1. The measurement covers a wide range in the gamma*p c.m. energy W (37 - 245 GeV), photon virtuality Q2 (2.2 - 80 GeV2) and mass Mx. The diffractive cross section for Mx > 2 GeV rises strongly with W; the rise is steeper with increasing Q2. The latter observation excludes the description of diffractive deep inelastic scattering in terms of the exchange of a single Pomeron. The ratio of diffractive to total cross section is constant as a function of W, in contradiction to the expectation of Regge phenomenology combined with a naive extension of the optical theorem to gamma*p scattering. Above Mx of 8 GeV, the ratio is flat with Q2, indicating a leading-twist behaviour of the diffractive cross section. The data are also presented in terms of the diffractive structure function, F2D(3)(beta,xpom,Q2), of the proton. For fixed beta, the Q2 dependence of xpom F2D(3) changes with xpom in violation of Regge factorisation. For fixed xpom, xpom F2D(3) rises as beta -> 0, the rise accelerating with increasing Q2. These positive scaling violations suggest substantial contributions of perturbative effects in the diffractive DIS cross section., 87 pages, 25 figures
Published: 2005

22. Substructure dependence of jet cross sections at HERA and determination of alphas

Author: Chekanov, S., Derrick, M., Magill, S., Miglioranzi, S., Musgrave, B., Repond, J., Yoshida, R., Mattingly, Mck, Pavel, N., Molina, Agy, Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Romeo, Gc, Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., De Pasquale, S., Giusti, P., Iacobucci, G., Margotti, A., Montanari, A., Nania, R., Palmonari, F., Pesci, A., Polini, A., Rinaldi, L., Sartorelli, G., Zichichi, A., Aghuzumtsyan, G., Bartsch, D., Brock, I., Goers, S., Hartmann, H., Hilger, E., Irrgang, P., Jakob, Hp, Kind, O., Meyer, U., Paul, E., Rautenberg, J., Renner, R., Voss, Kc, Wang, M., Wlasenko, M., Bailey, Ds, Brook, Nh, Cole, Je, Heath, Gp, Namsoo, T., Robins, S., Capua, M., Mastroberardino, A., Schioppa, M., Susinno, G., Tassi, E., Kim, Jy, Ma, Kj, Helbich, M., Ning, Y., Ren, Z., Schmidke, Wb, Sciulli, E., Chwastowski, J., Eskreys, A., Figiel, J., Galas, A., Olkiewicz, K., Stopa, P., Szuba, D., Zawiejski, L., Adamczyk, L., Bold, T., Grabowska Bold, I., Kisielewska, D., Kowal, Am, Lukasik, J., Przybycien, M., Suszycki, L., Szuba, J., Kotanski, A., Slominski, W., Adler, V., Behrens, U., Bloch, I., Borras, K., Cassel, Dg, Drews, G., Fourletova, J., Geiser, A., Gladkov, D., Goebel, F., Gottlicher, P., Diaz, Rg, Gutsche, O., Haas, T., Hain, W., Horn, C., Kahle, B., Kasemann, M., Kotz, U., Kowalski, H., Kramberger, G., Lelas, D., Lim, H., Lohr, B., Mankel, R., Martinez, M., Melzer Pellmann IA, Nguyen, Cn, Notz, D., Nuncio Quiroz AE, Raval, A., Santamarta, R., Schneekloth, U., Stosslein, U., Wolf, G., Youngman, C., Zeuner, W., Schlenstedt, S., Barbagli, G., Gallo, E., Genta, C., Pelfer, Pg, Bamberger, A., Benen, A., Karstens, F., Dobur, D., Vlasov, Nn, Bussey, Pj, Doyle, At, Ferr, o. J., Hamilton, J., Hanlon, S., Saxon, Dh, Skillicorn, Io, Gialas, I., Carli, T., Gosau, T., Holm, U., Krumnack, N., Lohrmann, E., Milite, M., Salehi, H., Schleper, P., Schorner Sadenius, T., Stonjek, S., Wichmann, K., Wick, K., Ziegler, A., Collins Tooth, C., Foudas, C., Fry, C., Goncalo, R., Long, Kr, Tapper, Ad, Kataoka, M., Nagano, K., Tokushuku, K., Yamada, S., Yamazakai, Y., Barakbaev, An, Boos, Eg, Pokrovskiy, Ns, Zhautykov, Bo, Son, D., de Favereau, J., Piotrzkowski, K., Barreiro, F., Glasman, C., Gonzalez, O., Jimenez, M., Labarga, L., del Peso, J., Terron, J., Zambrana, M., Barbi, M., Corriveau, F., Liu, C., Padhi, S., Plamondon, M., Stairs, Dg, Walsh, R., Zhou, C., Tsurugai, T., Antonov, A., Danilov, P., Dolgoshein, Ba, Sosnovtsev, V., Stifutkin, A., Suchkov, S., Dementiev, Rk, Ermolov, R., Gladilin, Lk, Katkov, Ii, Khein, La, Korzhavina, Ia, Kuzmin, Va, Levchenko, Bb, Lukina, Oy, Proskuryakov, As, Shcheglova, Lm, Zotkin, Ds, Zotkin, Sa, Abt, I., Buttner, C., Caldwell, A., Liu, X., Sutiak, J., Coppola, N., Grigorescu, G., Grijpink, S., Keramidas, A., Koffeman, E., Kooijman, P., Maddox, E., Pellegrino, A., Schagen, S., Tiecke, H., Vazquez, M., Wiggers, L., de Wolf, E., Brummer, N., Bylsma, B., Durkin, Ls, Ling, Ty, Allfrey, Pd, Bell, Ma, Cooper Sarkar AM, Cottrell, A., Devenish, Rce, Foster, B., Grzelak, G., Gwenlan, C., Kohno, T., Patel, S., Straub, Pb, Walczak, R., Bellan, P., Bertolin, A., Brugnera, R., Carlin, R., Ciesielski, R., Dal Corso, F., Dusini, S., Garfagnini, A., Limentani, S., Longhin, A., Stanco, L., Turcato, M., Heaphy, Ea, Metlica, F., Oh, By, Whitmore, Jj, Iga, Y., D'Agostini, G., Marini, G., Nigro, A., Hart, Jc, Abramowicz, H., Gabareen, A., Groys, M., Kananov, S., Kreisel, A., Levy, A., Kuze, M., Kagawa, S., Tawara, T., Hamatsu, R., Kaji, H., Kitamura, S., Matsuzawa, K., Ota, O., Ri, Yd, Costa, Marco, Ferrero, Mi, Monaco, Vincenzo, Sacchi, Roberto, Solano, Ada Maria, Arneodo, M., Ruspa, M., Fourletov, S., Koop, T., Martin, Jf, Mirea, A., Butterworth, Jm, Hall Wilton, R., Jones, Tw, Loizides, Jh, Sutton, Mr, Targett Adams, C., Wing, M., Ciborowski, J., Kulinski, P., Luzniak, P., Malka, J., Nowak, Rj, Pawlak, Jm, Sztuk, J., Tymieniecka, T., Tyszkiewicz, A., Ukleja, A., Ukleja, J., Zarnecki, Af, Adamus, M., Plucinski, P., Eisenberg, Y., Hochman, D., Karshon, U., Lightwood, Ms, Everett, A., Kcira, D., Lammers, S., Li, L., Reeder, Dd, Rosin, M., Ryan, P., Savin, Aa, Smith, Wh, Dhawan, S., Bhadra, S., Catterall, Cd, Cui, Y., Hartner, G., Menary, S., Noor, U., Soares, M., Age, J., Whyte, J., S. Chekanov, M. Derrick, D. Krakauer, J.H. Loizides 1, S. Magill, B. Musgrave, J. Repond, R. Yoshida, M.C.K. Mattingly, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, A. Margotti, A. Montanari, R. Nania, F. Palmonari, A. Pesci, L. Rinaldi, G. Sartorelli, A. Zichichi, G. Aghuzumtsyan, D. Bartsch, I. Brock, S. Goer, H. Hartmann, E. Hilger, P. Irrgang, and Zeus (IHEF, IoP, FNWI)
Subjects: Particle physics, Nuclear and High Energy Physics, MONTE-CARLO GENERATOR, Astrophysics::High Energy Astrophysical Phenomena, HERA, FOS: Physical sciences, Elementary particle, Parton, Inelastic scattering, COLOR DIPOLE MODEL, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, 0103 physical sciences, EP COLLIDER HERA, 010306 general physics, DIJET ANGULAR-DISTRIBUTIONS, QC, DEEP-INELASTIC-SCATTERING, CENTRAL TRACKING DETECTOR, PHYSICS EVENT GENERATION, ZEUS BARREL CALORIMETER, PARTON DISTRIBUTIONS, GLUON JETS, Physics, Quantum chromodynamics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Deep inelastic scattering, Gluon, Pseudorapidity, High Energy Physics::Experiment
Abstract: Jet substructure and differential cross sections for jets produced in the photoproduction and deep inelastic ep scattering regimes have been measured with the ZEUS detector at HERA using an integrated luminosity of 82.2 pb-1. The substructure of jets has been studied in terms of the jet shape and subjet multiplicity for jets with transverse energies Et(jet) > 17 GeV. The data are well described by the QCD calculations. The jet shape and subjet multiplicity are used to tag gluon- and quark-initiated jets. Jet cross sections as functions of Et(jet), jet pseudorapidity, the jet-jet scattering angle, dijet invariant mass and the fraction of the photon energy carried by the dijet system are presented for gluon- and quark-tagged jets. The data exhibit the behaviour expected from the underlying parton dynamics. A value of alphas(Mz) of alphas(Mz) = 0.1176 +-0.0009(stat.) -0.0026 +0.0009 (exp.) -0.0072 +0.0091 (th.) was extracted from the measurements of jet shapes in deep inelastic scattering., 67 pages, 17 figures, 24 tables
Published: 2004

23. The dependence of dijet production on photon virtuality in ep collisions at HERA

Author: Chekanov, S., Derrick, M., Magill, S., Miglioranzi, S., Musgrave, B., Repond, J., Yoshida, R., Mattingly, Mck, Pavel, N., Molina, Agy, Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Romeo, Gc, Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., De Pasquale, S., Giusti, P., Iacobucci, G., Margotti, A., Montanari, A., Nania, R., Palmonari, F., Pesci, A., Polini, A., Rinaldi, L., Sartorelli, G., Zichichi, A., Aghuzumtsyan, G., Bartsch, D., Brock, I., Goers, S., Hartmann, H., Hilger, E., Irrgang, P., Jakob, Hp, Kind, O., Meyer, U., Paul, E., Rautenberg, J., Renner, R., Voss, Kc, Wang, M., Wlasenko, M., Bailey, Ds, Brook, Nh, Cole, Je, Heath, Gp, Namsoo, T., Robins, S., Capua, M., Mastroberardino, A., Schioppa, M., Susinno, G., Tassi, E., Kim, Jy, Ma, Kj, Helbich, M., Ning, Y., Ren, Z., Schmidke, Wb, Sciulli, E., Chwastowski, J., Eskreys, A., Figiel, J., Galas, A., Olkiewicz, K., Stopa, P., Szuba, D., Zawiejski, L., Adamczyk, L., Bold, T., Grabowska Bold, I., Kisielewska, D., Kowal, Am, Lukasik, J., Przybycien, M., Suszycki, L., Szuba, J., Kotanski, A., Slominski, W., Adler, V., Behrens, U., Bloch, I., Borras, K., Cassel, Dg, Drews, G., Fourletova, J., Geiser, A., Gladkov, D., Goebel, F., Gottlicher, P., Diaz, Rg, Gutsche, O., Haas, T., Hain, W., Horn, C., Kahle, B., Kasemann, M., Kotz, U., Kowalski, H., Kramberger, G., Lelas, D., Lim, H., Lohr, B., Mankel, R., Martinez, M., Melzer Pellmann IA, Nguyen, Cn, Notz, D., Nuncio Quiroz AE, Raval, A., Santamarta, R., Schneekloth, U., Stosslein, U., Wolf, G., Youngman, C., Zeuner, W., Schlenstedt, S., Barbagli, G., Gallo, E., Genta, C., Pelfer, Pg, Bamberger, A., Benen, A., Karstens, F., Dobur, D., Vlasov, Nn, Bussey, Pj, Doyle, At, Ferr, o. J., Hamilton, J., Hanlon, S., Saxon, Dh, Skillicorn, Io, Gialas, I., Carli, T., Gosau, T., Holm, U., Krumnack, N., Lohrmann, E., Milite, M., Salehi, H., Schleper, P., Schorner Sadenius, T., Stonjek, S., Wichmann, K., Wick, K., Ziegler, A., Collins Tooth, C., Foudas, C., Fry, C., Goncalo, R., Long, Kr, Tapper, Ad, Kataoka, M., Nagano, K., Tokushuku, K., Yamada, S., Yamazakai, Y., Barakbaev, An, Boos, Eg, Pokrovskiy, Ns, Zhautykov, Bo, Son, D., de Favereau, J., Piotrzkowski, K., Barreiro, F., Glasman, C., Gonzalez, O., Jimenez, M., Labarga, L., del Peso, J., Terron, J., Zambrana, M., Barbi, M., Corriveau, F., Liu, C., Padhi, S., Plamondon, M., Stairs, Dg, Walsh, R., Zhou, C., Tsurugai, T., Antonov, A., Danilov, P., Dolgoshein, Ba, Sosnovtsev, V., Stifutkin, A., Suchkov, S., Dementiev, Rk, Ermolov, R., Gladilin, Lk, Katkov, Ii, Khein, La, Korzhavina, Ia, Kuzmin, Va, Levchenko, Bb, Lukina, Oy, Proskuryakov, As, Shcheglova, Lm, Zotkin, Ds, Zotkin, Sa, Abt, I., Buttner, C., Caldwell, A., Liu, X., Sutiak, J., Coppola, N., Grigorescu, G., Grijpink, S., Keramidas, A., Koffeman, E., Kooijman, P., Maddox, E., Pellegrino, A., Schagen, S., Tiecke, H., Vazquez, M., Wiggers, L., de Wolf, E., Brummer, N., Bylsma, B., Durkin, Ls, Ling, Ty, Allfrey, Pd, Bell, Ma, Cooper Sarkar AM, Cottrell, A., Devenish, Rce, Foster, B., Grzelak, G., Gwenlan, C., Kohno, T., Patel, S., Straub, Pb, Walczak, R., Bellan, P., Bertolin, A., Brugnera, R., Carlin, R., Ciesielski, R., Dal Corso, F., Dusini, S., Garfagnini, A., Limentani, S., Longhin, A., Stanco, L., Turcato, M., Heaphy, Ea, Metlica, F., Oh, By, Whitmore, Jj, Iga, Y., D'Agostini, G., Marini, G., Nigro, A., Hart, Jc, Abramowicz, H., Gabareen, A., Groys, M., Kananov, S., Kreisel, A., Levy, A., Kuze, M., Kagawa, S., Tawara, T., Hamatsu, R., Kaji, H., Kitamura, S., Matsuzawa, K., Ota, O., Ri, Yd, Costa, Marco, Ferrero, Mi, Monaco, Vincenzo, Sacchi, Roberto, Solano, Ada Maria, Arneodo, M., Ruspa, M., Fourletov, S., Koop, T., Martin, Jf, Mirea, A., Butterworth, Jm, Hall Wilton, R., Jones, Tw, Loizides, Jh, Sutton, Mr, Targett Adams, C., Wing, M., Ciborowski, J., Kulinski, P., Luzniak, P., Malka, J., Nowak, Rj, Pawlak, Jm, Sztuk, J., Tymieniecka, T., Tyszkiewicz, A., Ukleja, A., Ukleja, J., Zarnecki, Af, Adamus, M., Plucinski, P., Eisenberg, Y., Hochman, D., Karshon, U., Lightwood, Ms, Everett, A., Kcira, D., Lammers, S., Li, L., Reeder, Dd, Rosin, M., Ryan, P., Savin, Aa, Smith, Wh, Dhawan, S., Bhadra, S., Catterall, Cd, Cui, Y., Hartner, G., Menary, S., Noor, U., Soares, M., Age, J., Whyte, J., Zeus (IHEF, IoP, FNWI), S. Chekanov, M. Derrick, D. Krakauer, J.H. Loizides 1, S. Magill, B. Musgrave, J. Repond, R. Yoshida, M.C.K. Mattingly, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, A. Margotti, A. Montanari, R. Nania, F. Palmonari, A. Pesci, L. Rinaldi, G. Sartorelli, A. Zichichi, G. Aghuzumtsyan, D. Bartsch, I. Brock, S. Goer, H. Hartmann, E. Hilger, P. Irrgang, and UCL
Subjects: Particle physics, Photon, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, Monte Carlo method, HERA, FOS: Physical sciences, Jet (particle physics), PROTON SCATTERING, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Engineering (miscellaneous), TO-LEADING ORDER, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, GAMMA-P INTERACTIONS, JET CROSS-SECTIONS, PARTON DISTRIBUTIONS, HADRON-COLLISIONS, EVENT GENERATOR, Momentum, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, 0103 physical sciences, 010306 general physics, Nuclear Experiment, QC, Quantum chromodynamics, Physics, ZEUS (particle detector), Luminosity (scattering theory), 010308 nuclear & particles physics, High Energy Physics::Experiment
Abstract: The dependence of dijet production on the virtuality of the exchanged photon, Q^2, has been studied by measuring dijet cross sections in the range 0 < Q^2 < 2000 GeV^2 with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb^-1. Dijet cross sections were measured for jets with transverse energy E_T^jet > 7.5 and 6.5 GeV and pseudorapidities in the photon-proton centre-of-mass frame in the range -3 < eta^jet, 35 pages, 6 eps figures, submitted to Eur.Phys.J.C
Published: 2004

24. Search for QCD-instanton induced events in deep inelastic ep scattering at HERA

Author: Chekanov, S., Derrick, M., Krakauer, D., Loizides, J. H., Magill, S., Miglioranzi, S., Musgrave, B., Repond, J., Yoshida, R., Mattingly, M. C. K., Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Cara Romeo, G., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., DE PASQUALE, Salvatore, Giusti, P., Iacobucci, G., Margotti, A., Montanari, A., Nania, R., Palmonari, F., Pesci, A., Sartorelli, G., Zichichi, A., Aghuzumtsyan, G., Bartsch, D., Brock, I., Goers, S., Hartmann, H., Hilger, E., Irrgang, P., Jakob, H. . P., Kind, O., Meyer, U., Paul, E., Rautenberg, J., Renner, R., Stifutkin, A., Tandler, J., Voss, K. C., Wang, M., Weber, A., Bailey, D. S., Brook, N. H., Cole, J. E., Heath, G. P., Namsoo, T., Robins, S., Wing, M., Capua, M., Mastroberardino, A., Schioppa, M., Susinno, G., Kim, J. Y., Kim, Y. K., Lee, J. H., Lim, I. T., Pac, M. Y., Caldwell, A., Helbich, M., Liu, X., Mellado, B., Ning, Y., Paganis, S., Ren, Z., Schmidke, W. B., Sciulli, F., Chwastowski, J., Eskreys, A., Figiel, J., Galas, A., Olkiewicz, K., Stopa, P., Zawiejski, L., Adamczyk, L., Bold, T., Grabowska bold, I., Kisielewska, D., Kowal, A. M., Kowal, M., Kowalski, T., Przybycieå, M., Suszycki, L., Szuba, D., Szuba, J., Kotaåski, A., Slomiåski, W., Adler, V., Behrens, U., Bloch, I., Borras, K., Chiochia, V., Dannheim, D., Drews, G., Fourletova, J., Fricke, U., Geiser, A., Gã¶ttlicher, P., Gutsche, O., Haas, T., Hain, W., Hillert, S., Kahle, B., Kã¶tz, U., Kowalski, H., Kramberger, G., Labes, H., Lelas, D., Lim, H., Lã¶hr, B., Mankel, R., Melzer pellmann, I. . A., Nguyen, C. N., Notz, D., Nuncio quiroz, A. E., Polini, A., Raval, A., Rurua, L., Schneekloth, U., Stoesslein, U., Wolf, G., Youngman, C., Zeuner, W., Schlenstedt, S., Barbagli, G., Gallo, E., Genta, C., Pelfer, P. G., Bamberger, A., Benen, A., Karstens, F., Dobur, D., Vlasov, N. N., Bell, M., Bussey, P. J., Doyle, A. T., Ferrando, J., Hamilton, J., Hanlon, S., Saxon, D. H., Skillicorn, I. O., Gialas, I., Bodmann, B., Carli, T., Holm, U., Klimek, K., Krumnack, N., Lohrmann, E., Milite, M., Salehi, H., Schleper, P., Stonjek, S., Wick, K., Ziegler, A., Ziegler, A. R., Collins tooth, C., Foudas, C., Gonã§alo, R., Long, K. R., Tapper, A. D., Cloth, P., Filges, D., Kataoka, M., Nagano, K., Tokushuku, K., Yamada, S., Yamazaki, Y., Barakbaev, A. N., Boos, E. G., Pokrovskiy, N. S., Zhautykov, B. O., Son, D., Piotrzkowski, K., Barreiro, F., Glasman, C., Gonzã¡lez, O., Labarga, L., Del Peso, J., Tassi, E., Terrã³n, J., Vã¡zquez, M., Zambrana, M., Barbi, M., Corriveau, F., Gliga, S., Lainesse, J., Padhi, S., Stairs, D. G., Walsh, R., Tsurugai, T., Antonov, A., Danilov, P., Dolgoshein, B. A., Gladkov, D., Sosnovtsev, V., Suchkov, S., Dementiev, R. K., Ermolov, P. F., Golubkov, Y. A., Katkov, I. I., Khein, L. A., Korzhavina, I. A., Kuzmin, V. A., Levchenko, B. B., Lukina, O. Y., Proskuryakov, A. S., Shcheglova, L. M., Zotkin, S. A., Coppola, N., Grijpink, S., Koffeman, E., Kooijman, P., Maddox, E., Pellegrino, A., Schagen, S., Tiecke, H., Velthuis, J. J., Wiggers, L., De Wolf, E., Brã¼mmer, N., Bylsma, B., Durkin, L. S., Ling, T. Y., Cooper sarkar, A. M., Cottrell, A., Devenish, R. C. E., Foster, B., Grzelak, G., Gwenlan, C., Patel, S., Straub, P. B., Walczak, R., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., Dusini, S., Garfagnini, A., Limentani, S., Longhin, A., Parenti, A., Posocco, M., Stanco, L., Turcato, M., Heaphy, E. A., Metlica, F., B. Y., Oh, Whitmore, J. J., Iga, Y., D'Agostini, G., Marini, G., Nigro, A., Cormack, C., Hart, J. C., Mccubbin, N. A., Heusch, C., Park, I. H., Pavel, N., Abramowicz, H., Gabareen, A., Kananov, S., Kreisel, A., Levy, A., Kuze, M., Fusayasu, T., Kagawa, S., Kohno, T., Tawara, T., Yamashita, T., Hamatsu, R., Hirose, T., Inuzuka, M., Kaji, H., Kitamura, S., Matsuzawa, K., Ferrero, M. I., Monaco, V., Sacchi, R., Solano, A., Arneodo, M., Ruspa, M., Koop, T., Levman, G. M., Martin, J. F., Mirea, A., Butterworth, J. M., Hall wilton, R., Jones, T. W., Lightwood, M. S., Sutton, M. R., Targett adams, C., Ciborowski, J., Ciesielski, R., Åuzniak, P., Nowak, R. J., Pawlak, J. M., Sztuk, J., Tymieniecka, T., Ukleja, A., Ukleja, J., Zarnecki, A. F., Adamus, M., Plucinski, P., Eisenberg, Y., Gladilin, L. K., Hochman, D., Karshon, U., Riveline, M., Kã§ira, D., Lammers, S., Li, L., Reeder, D. D., Rosin, M., Savin, A. A., Smith, W. H., Deshpande, A., Dhawan, S., Bhadra, S., Catterall, C. D., Fourletov, S., Hartner, G., Menary, S., Soares, M., Standage, J., Zeus (IHEF, IoP, FNWI), CHEKANOV S., DERRICK M., KRAKAUER D., LOIZIDES JH., MAGILL S., MIGLIORANZI S., MUSGRAVE B., REPOND J., YOSHIDA R., MATTINGLY MCK., ANTONIOLI P., BARI G., BASILE M., BELLAGAMBA L., BOSCHERINI D., BRUNI A., BRUNI G., CARA ROMEO G., CIFARELLI L., CINDOLO F., CONTIN A., CORRADI M., DE PASQUALE S., GIUSTI P., IACOBUCCI G., MARGOTTI A., MONTANARI A., NANIA R., PALMONARI F., PESCI A., SARTORELLI G., ZICHICHI A., AGHUZUMTSYAN G., BARTSCH D., BROCK I., GOERS S., HARTMANN H., HILGER E., IRRGANG P., JAKOB HP., KIND O., MEYER U., PAUL E., RAUTENBERG J., RENNER R., STIFUTKIN A., TANDLER J., VOSS KC., WANG M., BAILEY DS., BROOK NH., COLE JE., HEATH GP., NAMSOO T., ROBINS S., WING M., CAPUA M., MASTROBERARDINO A., SCHIOPPA M., SUSINNO G., KIM JS., LIM IT., MA KJ., PAC MY., CALDWELL A., HELBICH M., LIU X., MELLADO B., NING Y., PAGANIS S., REN Z., SCHMIDKE WB., SCIULLI F., CHWASTOWSKI J., ESKREYS A., FIGIEL J., GALAS A., OLKIEWICZ K., STOPA P., ZAWIEJSKI L., ADAMCZYK L., BOLD T., GRABOWSKA-BOLD I., KISIELEWSKA D., KOWAL AM., KOWAL M., LUKASIK J., PRZYBYCIEN M., SUSZYCKI L., SZUBA D., SZUBA J., KOTANSKI A., SLOMINSKI W., ADLER V., BEHRENS U., BLOCH I., BORRAS K., CHIOCHIA V., DANNHEIM D., DREWS G., FOURLETOVA J., FRICKE U., GEISER A., GOTTLICHER P., GUTSCHE O., HAAS T., HAIN W., HILLERT S., HORN C., KAHLE B., KOTZ U., KOWALSKI H., KRAMBERGER G., LABES H., LELAS D., LIM H., LOHR B., MANKEL R., MELZER-PELLMANN IA., NGUYEN CN., NOTZ D., NUNCIO-QUIROZ AE., POLINI A., RAVAL A., RURUA L., SCHNEEKLOTH U., STOSSLEIN U., WOLF G., YOUNGMAN C., ZEUNER W., SCHLENSTEDT S., BARBAGLI G., GALLO E., GENTA C., PELFER P., BAMBERGER A., BENEN A., KARSTENS F., DOBUR D., VLASOV NN., BELL M., BUSSEY PJ., DOYLE AT., FERRANDO J., HAMILTON J., HANLON S., SAXON DH., SKILLICORN IO., GIALAS I., CARLI T., GOSAU T., HOLM U., KRUMNACK N., LOHRMANN E., MILITE M., SALEHI H., SCHLEPER P., SCHORNER-SADENIUS T., STONJEK S., WICHMANN K., WICK K., ZIEGLER A., COLLINS-TOOTH C., FOUDAS C., GONCALO R., LONG KR., TAPPER AD., CLOTH P., FILGES D., KATAOKA M., NAGANO K., TOKUSHUKU K., YAMADA S., YAMAZAKI Y., BARAKBAEV AN., BOOS EG., POKROVSKIY NS., ZHAUTYKOV BO., SON D., PIOTRZKOWSKI K., BARREIRO F., GLASMAN C., GONZALEZ O., LABARGA L., DEL PESO J., TASSI E., TERRON J., ZAMBRANA M., BARBI M., CORRIVEAU F., GLIGA S., LAINESSE J., PADHI S., STAIRS DG., WALSH R., TSURUGAI T., ANTONOV A., DANILOV P., DOLGOSHEIN BA., GLADKOV D., SOSNOVTSEV V., SUCHKOV S., DEMENTIEV RK., ERMOLOV PF., KATKOV II., KHEIN LA., KORZHAVINA IA., KUZMIN VA., LEVCHENKO BB., LUKINA OY., PROSKURYAKOV AS., SHCHEGLOVA LM., ZOTKIN SA., COPPOLA N., GRIJPINK S., KOFFEMAN E., KOOIJMAN P., MADDOX E., PELLEGRINO A., SCHAGEN S., TIECKE H., VAZQUEZ M., WIGGERS L., DE WOLF E., BRUMMER N., BYLSMA B., DURKIN LS., LING TY., COOPER-SARKAR AM., COTTRELL A., DEVENISH RCE., FOSTER B., GRZELAK G., GWENLAN C., KOHNO T., PATEL S., STRAUB PB., WALCZAK R., BERTOLIN A., BRUGNERA R., CARLIN R., DAL CORSO F., DUSINI S., GARFAGNINI A., LIMENTANI S., LONGHIN A., PARENTI A., POSOCCO M., STANCO L., TURCATO M., HEAPHY EA., METLICA F., OH BY., WHITMORE JJ., IGA Y., D'AGOSTINI G., MARINI G., NIGRO A., CORMACK C., HART JC., MCCUBBIN NA., HEUSCH C., PARK IH., PAVEL N., ABRAMOWICZ H., GABAREEN A., KANANOV S., KREISEL A., LEVY A., KUZE A., FUSAYASU T., KAGAWA S., TAWARA T., YAMASHITA T., HAMATSU R., HIROSE T., INUZUKA M., KAJI H., KITAMURA S., MATSUZAWA K., COSTA A., FERRERO MI., MONACO V., SACCHI R., SOLANO AM., ARNEODO M., RUSPA M., KOOP T., MARTIN JF., MIREA A., BUTTERWORTH JM., HALL-WILTON R., JONES TW., LIGHTWOOD MS., SUTTON MR., TARGETT-ADAMS C., CIBOROWSKI J., CIESIELSKI RA., LUZNIAK P., NOWAK RJ., PAWLAK JM., SZTUK J., TYMIENIECKA T., UKLEJA A., UKLEJA J., ZARNECKI AF., ADAMUS M., PLUCINSKI P., EISENBERG Y., HOCHMAN D., KARSHON U., RIVELINE M., EVERETT A., GLADILIN LK., KCIRA D., LAMMERS S., LI L., REEDER DD., ROSIN M., RYAN P., SAVIN AA., SMITH WH., DESHPANDE A., DHAWAN S., BHADRA S., CATTERALL CD., FOURLETOV S., HARTNER G., MENARY S., SOARES M., STANDAGE J., and UCL
Subjects: BARYON-NUMBER, Particle physics, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), ENERGIES, High Energy Physics::Lattice, Monte Carlo method, HERA, FOS: Physical sciences, E-P DIS, 01 natural sciences, High Energy Physics - Experiment, law.invention, Nuclear physics, High Energy Physics - Experiment (hep-ex), Engineering (miscellaneous), CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, PERTURBATION-THEORY, HADRON-COLLISIONS, CONSTRUCTION, SIMULATION, DESIGN, High Energy Physics, ZEUS Collaboration, law, 0103 physical sciences, 010306 general physics, Collider, QC, Physics, Quantum chromodynamics, Luminosity (scattering theory), ZEUS (particle detector), Neutral current, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, ZEUS, MONTE CARLO METHODS, 3. Good health, High Energy Physics::Experiment
Abstract: A search for QCD-instanton-induced events in deep inelastic ep scattering has been performed with the ZEUS detector at the HERA collider, using data corresponding to an integrated luminosity of 38 pb^{-1}. A kinematic range defined by cuts on the photon virtuality, Q^2 > 120 GeV^2, and on the Bjorken scaling variable, x > 10^{-3}, has been investigated. The QCD-instanton induced events were modelled by the Monte Carlo generator QCDINS. A background-independent, conservative 95% confidence level upper limit for the instanton cross section of 26 pb is obtained, to be compared with the theoretically expected value of 8.9 pb., 27 pages, 1 table, 6 figures
Published: 2004

25. Observation of the strange sea in the proton via inclusive phi-meson production in neutral current deep inelastic scattering at HERA

Author: Chekanov, S, Krakauer, D, Magill, S, Musgrave, V, Repond, J, Yoshida, R, Mattingly, M C K, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, G C, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Margotti, A, Nania, R, Palmonari, F, Pesci, A, Sartorelli, G, Zichichi, A, Aghuzumtsyan, G, Bartsch, D, Brock, I, Goers, S, Hartmann, H, Hilger, E, Irrgang, P, Jakob, H P, Kappes, A, Katz, U F, Kind, O, Paul, E, Rautenberg, J, Renner, R, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, K C, Wang, M, Weber, A, Bailey, D S, Brook, N H, Cole, J E, Foster, B, Heath, G P, Heath, H F, Robins, S, Rodrigues, E, Scott, J, Tapper, R J, Wing, M, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Kim, J Y, Kim, Y K, Lee, J H, Lim, I T, Pac, M Y, Caldwell, A, Helbich, M, Liu, X, Mellado, B, Ning, Y, Paganis, S, Ren, Z, Schmidke, W B, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Olkiewicz, K, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, Grabowska-Bold, I, Kisielewska, D, Kowal, A M, Kowal, M, Kowalski, T, Przybycien, M, Suszycki, L, Szuba, D, Szuba, J, Kotanski, A, Stoninski, W, Bauerdick, L A T, Behrens, U, Bloch, I, Borras, K, Chiochia, V, Dannheim, D, Derrick, M, Drews, G, Fourletova, J, Fox-Murphy, A, Fricke, U, Geiser, A, Goebel, F, Gottlicher, P, Gutsche, O, Haas, T, Hain, W, Hartner, G F, Hillert, S, Kotz, U, Kowalski, H, Kramberger, G, Labes, H, Lelas, D, Lohr, B, Mankel, R, Melzer-Pellmann, I A, Moritz, M, Notz, D, Petrucci, M C, Polini, A, Raval, A, Schneekloth, U, Selonke, F, Wessoleck, H, Wichmann, R, Wolf, G, Youngman, C, Zeuner, W, Viani, A L D, Meyer, A, Schlenstedt, S, Barbagli, G, Gallo, E, Genta, C, Pelfer, P G, Bamberger, A, Benen, A, Coppola, N, Bell, M, Bussey, P J, Doyle, A T, Glasman, C, Hanlon, S, Lee, S W, Lupi, A, McCance, G J, Saxon, D H, Skillicorn, I O, Gialas, I, Bodmann, B, Carli, T, Holm, U, Klimek, K, Krumnack, N, Lohrmann, E, Milite, M, Salehi, H, Stonjek, S, Wick, K, Ziegler, A, Collins-Tooth, C, Foudas, C, Goncalo, R, Long, K R, Metlica, F, Tapper, A D, Cloth, P, Filges, D, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, A N, Boos, E G, Pokrovskiy, N S, Zhautykov, Y, Lim, H, Son, D, Barreiro, F, Gonzalez, O, Labarga, L, del Peso, J, Redondo, I, Tassi, E, Terron, J, Vazquez, M, Barbi, M, Bertolin, A, Corriveau, F, Ochs, A, Padhi, S, Stairs, D G, St-Laurent, M, Tsurugai, T, Antonov, A, Danilov, P, Dolgoshein, B A, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, R K, Ermolov, P F, Golubkov, Y A, Katkov, I I, Khein, L A, Korzhavina, I A, Kuzmin, V A, Levchenko, B B, Lukina, O Y, Proskuryakov, A S, Shcheglova, L M, Vlasov, N N, Zotkin, S A, Bokel, C, Engelen, J, Grijpink, S, Koffeman, E, Kooijman, P, Maddox, E, Pellegrino, A, Schagen, S, Tiecke, H, Tuning, N, Velthuis, J J, Wiggers, L, de Wolf, E, Brummer, N, Bylsma, B, Durkin, L S, Ling, T Y, Boogert, S, Cooper-Sarkar, A M, Devenish, R C E, Ferrando, J, Grzelak, G, Matsushita, T, Rigby, M, Ruske, O, Sutton, M R, Walczak, R, Brugnera, R, Carlin, R, Dal Corso, F, Dusini, S, Garfagnini, A, Limentani, S, Longhin, A, Parenti, A, Posocco, M, Stanco, L, Turcato, M, Heaphy, E A, Oh, B Y, Saull, P R B, Whitmore, J J, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, J C, McCubbin, N A, Heusch, C, Park, I H, Pavel, N, Abramowicz, H, Gabareen, A, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Kagawa, S, Kohno, T, Tawara, T, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Ferrero, M I, Monaco, V, Ruspa, M, Sacchi, R, Solano, A, Galea, R, Koop, T, Levman, G M, Martin, J F, Mirea, A, Sabetfakhri, A, Butterworth, J M, Gwenlan, C, Hall-Wilton, R, Jones, T W, Lightwood, M S, Loizides, J H, West, B J, Ciborowski, J, Ciesielski, R, Nowak, R J, Pawlak, J M, Smalska, B, Sztuk, J, Tymieniecka, T, Ukleja, A, Ukleja, J, Zarnecki, A F, Adamus, M, Plucinski, P, Eisenberg, Y, Gladilin, L K, Hochman, D, Karshon, U, Kcira, D, Lammers, S, Li, L, Reeder, D D, Savin, A A, Smith, W H, Deshpande, A, Dhawan, S, Hughes, V W, Straub, P B, Bhadra, S, Catterall, C D, Fourletov, S, Menary, S, Soares, M, Standage, J, ZEUS Collaboration, and Zeus (IHEF, IoP, FNWI)
Subjects: Particle physics, Nuclear and High Energy Physics, MONTE-CARLO GENERATOR, Meson, Nuclear Theory, FOS: Physical sciences, LEPTON-NUCLEON SCATTERING, CENTRAL TRACKING DETECTOR, HADRONIC Z-DECAYS, PARTON DISTRIBUTIONS, D-ASTERISK(+/-) PRODUCTION, PARTICLE-PRODUCTION, REAR CALORIMETER, EVENT GENERATOR, EP SCATTERING, 01 natural sciences, High Energy Physics - Experiment, ZEUS, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, 010306 general physics, Nuclear Experiment, QC, Event generator, Physics, Research Groups and Centres\Physics\Low Temperature Physics, Annihilation, Neutral current, 010308 nuclear & particles physics, Scattering, Faculty of Science\Physics, High Energy Physics::Phenomenology, HERA, Deep inelastic scattering, Pseudorapidity, High Energy Physics::Experiment
Abstract: Inclusive phi-meson production in neutral current deep inelastic e+p scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 45 pb^{-1}. The phi mesons were studied in the range 10, Comment: 20 pages including 5 figures and 2 tables
Published: 2003
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26. Search for single-top production in ep collisions at HERA

Author: Chekanov, S, Derrick, M, Krakauer, D, Loizides, J H, Magill, S, Musgrave, B, Repond, J, Yoshida, R, Mattingly, M C K, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, G C, Cifarelli, L, Cindolo, R, Contin, A, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Margotti, A, Nania, R, Palmonari, F, Pesci, A, Saitorelli, G, Zichichi, A, Aghuzumtsyan, G, Bartsch, D, Brock, I, Goers, S, Hartmann, H, Hilger, E, Irrgang, P, Jakob, H P, Kappes, A, Katz, U F, Kind, O, Meyer, U, Paul, E, Rautenberg, J, Renner, R, Stifutkin, A, Tandler, J, Voss, K C, Wang, M, Weber, A, Bailey, D S, Brook, N H, Cole, J E, Foster, B, Heath, G P, Heath, H F, Robins, S, Rodrigues, E, Scott, J, Tapper, R J, Wing, M, Capua, A, Mastroberardino, A, Schioppa, M, Susinno, G, Kim, J Y, Kim, Y K, Lee, J H, Lim, I T, Pac, M Y, Caldwell, A, Helbich, M, Liu, X, Mellado, B, Ning, Y, Paganis, S, Ren, Z, Schmidke, W B, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Olkiewicz, K, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, Grabowska-Bold, I, Kisielewska, D, Kowal, A M, Kowal, M, Kowalski, T, Przybycien, M, Suszycki, L, Szuba, D, Szuba, J, Kotanski, A, Slominski, W, Bauerdick, L A T, Behrens, U, Bloch, I, Borras, K, Chiochia, V, Dannheim, D, Drews, G, Fourletova, J, Fricke, U, Geiser, A, Goebel, R, Gottlicher, P, Gutsche, O, Haas, T, Hain, W, Hartner, G F, Hillert, S, Kahle, B, Kotz, U, Kowalski, H, Kramberger, G, Labes, H, Lelas, D, Lohr, B, Mankel, R, Melzer-Pellmann, I A, Moritz, M, Nguyen, C N, Notz, D, Petrucci, M C, Polini, A, Raval, A, Schneekloth, U, Selonke, F, Wessoleck, H, Wolf, G, Youngman, C, Zeuner, W, Schlenstedt, S, Barbagli, G, Gallo, E, Genta, C, Pelfer, G, Bamberger, A, Benen, A, Bell, M, Bussey, P, Doyle, A T, Glasman, C, Hamilton, J, Hanlon, S, Lee, S W, Lupi, A, Saxon, D H, Skillicorn, I O, Gialas, I, Bodmann, B, Carli, T, Holm, U, Klimek, K, Krumnack, N, Lohrmann, E, Milite, M, Salehi, H, Stonjek, S, Wick, K, Ziegler, A, Collins-Tooth, C, Foudas, C, Goncalo, R, Long, K R, Tapper, A D, Cloth, P, Filges, D, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, A N, Boos, E G, Pokrovskiy, N S, Zhautykov, B O, Lim, H, Son, D, Piotrzkowski, K, Barreiro, F, Gonzalez, O, Labarga, L, del Peso, J, Tassi, E, Terron, J, Vazquez, M, Barbi, M, Corriveau, F, Gliga, S, Lainesse, J, Padhi, S, Stairs, D G, Tsurugai, T, Antonov, A, Danilov, P, Dolgoshein, B A, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, R K, Ermolov, R, Golubkov, Y A, Katkov, I I, Khein, L A, Korzhavina, I A, Kuzmin, V A, Levchenko, B B, Lukina, O Y, Proskuryakov, A S, Shcheglova, L M, Vlasov, N N, Zotkin, S A, Coppola, N, Grijpink, S, Koffeman, E, Kooijman, P, Maddox, E, Pellegrino, A, Schagen, S, Tiecke, H, Velthuis, J J, Wiggers, L, de Wolf, E, Brummer, N, Bylsma, B, Durkin, L S, Ling, T Y, Boogert, S, Cooper-Sarkar, A M, Devenish, R C E, Ferrando, J, Grzelak, G, Matsushita, T, Patel, S, Rigby, M, Sutton, M R, Walczak, R, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, F, Dusini, S, Garfagnini, A, Limentani, S, Longhin, A, Parenti, A, Posocco, M, Stanco, L, Turcato, M, Heaphy, E A, Metlica, F, Oh, B Y, Saull, P R B, Whitmore, J J, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, J C, McCubbin, N A, Heusch, C, Park, I H, Pavel, N, Abramowicz, H, Gabareen, A, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Kagawa, S, Kohno, T, Tawara, T, Yamashita, T, Hamatsu, R, Hirose, I, Inuzuka, M, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Ferrero, M I, Monaco, V, Ruspa, M, Sacchi, R, Solano, A, Koop, T, Levman, G M, Martin, J F, Mirea, A, Butterworth, J M, Gwenlan, C, Hall-Wilton, R, Jones, T W, Lightwood, M S, West, B J, Ciborowski, J, Ciesielski, R, Nowak, R J, Pawlak, J M, Sztuk, J, Tymieniecka, T, Ukleja, A, Ukleja, J, Zarnecki, A F, Adamus, M, Plucinski, P, Eisenberg, Y, Gladilin, L K, Hochman, D, Karshon, U, Kcira, D, Lammers, S, Li, L, Reeder, D D, Savin, A A, Smith, W H, Deshpande, A, Dhawan, S, Hughes, V W, Straub, P B, Bhadra, S, Catterall, C D, Fourletov, S, Menary, S, Soares, M, Standage, J, ZEUS Collaboration, UCL, H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, D.S. ZOTKIN, Zeus (IHEF, IoP, FNWI), and Precision Frontier
Subjects: Particle physics, Nuclear and High Energy Physics, MONTE-CARLO GENERATOR, LUND MONTE-CARLO, P(P)OVER-BAR COLLISIONS, FOS: Physical sciences, FCNC, CHANGING NEUTRAL CURRENTS, DEEP-INELASTIC-SCATTERING, MISSING TRANSVERSE-MOMENTUM, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, COLOR DIPOLE MODEL, HIGH-ENERGY LEPTON, PARTON DISTRIBUTIONS, QUARK PRODUCTION, CROSS-SECTIONS, 7. Clean energy, 01 natural sciences, JET FRAGMENTATION, Standard Model, Vector boson, High Energy Physics - Experiment, Nuclear physics, E(+)E(-) COLLISIONS, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, 010306 general physics, QC, Boson, Physics, Research Groups and Centres\Physics\Low Temperature Physics, Luminosity (scattering theory), ZEUS (particle detector), Neutral current, 010308 nuclear & particles physics, Faculty of Science\Physics, Electroweak interaction, High Energy Physics::Phenomenology, ZEUS, Single-top production, HERA, High Energy Physics::Experiment, HADRON-COLLISIONS, ZEUS experiment
Abstract: A search for single-top production, ep --> etX, has been made with the ZEUS detector at HERA using an integrated luminosity of 130.1 pb-1. Events from both the leptonic and hadronic decay channels of the W boson resulting from the decay of the top quark were sought. For the leptonic mode, the search was made for events with isolated high-energy leptons and significant missing transverse momentum. For the hadronic decay mode, three-jet events in which two of the jets had an invariant mass consistent with that of the W were selected. No evidence for top production was found. The results are used to constrain single-top production via flavour-changing neutral current (FCNC) transitions. The ZEUS limit excludes a substantial region in the FCNC t-u-gamma coupling not ruled out by other experiments., 28 pages, 4 figures, 2 tables, final version (minor changes in text) Addendum with new limits included
Published: 2003

27. Measurement of subjet multiplicities in neutral current deep inelastic scattering at HERA and determination of alpha(s)

Author: C. A. Heusch, F. Selonke, E. Hilger, R. Galea, S.J.L.A. Grijpink, R. Yoshida, Ben Bylsma, D. Szuba, B. Smalska, F. Dal Corso, J. Rautenberg, A. Gabareen, H. Hartmann, Jan Figiel, J. M. Pawlak, B.Y. Oh, S. Bhadra, Kenneth Long, S. Paganis, G. Bari, J. Repond, B. Foster, S. Dusini, M. Derrick, M. Bell, S. A. Zotkin, Michele Arneodo, A. Garfagnini, C. Collins-Tooth, J. Scott, Ada Solano, G. F. Susinno, L. Suszycki, M. Inuzuka, G. Aghuzumtsyan, I. Gialas, G. Cara Romeo, L. M. Shcheglova, G. Grzelak, Halina Abramowicz, Z. Ren, A. Stifutkin, M. Kowal, A. Kreisel, J. Y. Kim, M. S. Lightwood, Pietro Antonioli, Luisa Cifarelli, R. K. Dementiev, S. Limentani, A. Benen, A. Caldwell, Fernando Barreiro, S.I. Suchkov, S. Yamada, E. Maddox, C. Cormack, G. Kramberger, S. W. Lee, O. Ruske, A. Eskreys, A. T. Doyle, Giuseppe Iacobucci, H. Lim, Anna Mastroberardino, B. B. Levchenko, N.S. Pokrovskiy, W. H. Smith, S. Kagawa, A. M. Cooper-Sarkar, E. Rodrigues, T. Fusayasu, Rosario Nania, B. A. Dolgoshein, Marta Ruspa, M.C. Petrucci, H. Salehi, F. Corriveau, J. E. Cole, P. Irrgang, Andrea Contin, A. Lopez-Duran Viani, D. Notz, H. Schnurbusch, J. F. Martin, I. T. Lim, P. Danilov, Yu. A. Golubkov, G. D'Agostini, T. Y. Ling, Roberto Sacchi, Tomohiro Abe, Stewart Boogert, C. D. Catterall, T. W. Jones, Mariusz Przybycien, D. Kçira, M. Corradi, J. Sztuk, Marcella Capua, N. Krumnack, Luca Stanco, N. Pavel, S. Stonjek, Claire Gwenlan, K. Olkiewicz, S. Goers, Lev Khein, Tomasz Bold, B. J. West, C.H. Bokel, Aharon Levy, Jonathan Butterworth, A. Meyer, S. De Pasquale, Iwona Grabowska-Bold, S. Kananov, A. Ukleja, V. Chiochia, Rainer Mankel, W.B. Schmidke, U. Fricke, M. Posocco, S. Padhi, W. Słomiński, F. Metlica, S. Gliga, Ulf Behrens, Federico Cindolo, Antonino Zichichi, G. Bruni, A. Pellegrino, M.C.K. Mattingly, L. S. Durkin, A. Ziegler, J. Fourletova, A. Antonov, Katsuo Tokushuku, V.V. Sosnovtsev, D. Gladkov, T. Matsushita, A. N. Barakbaev, J. Ukleja, O. González, Vincenzo Monaco, I. A. Melzer-Pellmann, Jaap Velthuis, S. Hanlon, R. Hamatsu, K. Matsuzawa, Andreas Weber, A. Mirea, J. Ciborowski, U. Holm, G.F. Hartner, J. Del Peso, Els Koffeman, H. Wessoleck, Janusz Chwastowski, I. O. Skillicorn, J. Standage, M.R. Sutton, A. Raval, A Fox-Murphy, Pawel Plucinski, T. Yamashita, T. Carli, E. A. De Wolf, M. Adamus, P.F. Ermolov, B. Musgrave, N. A. McCubbin, D. Lelas, Ian Brock, Y. Ning, U. Schneekloth, H. Labes, P.B Straub, S. Fourletov, D.G. Stairs, M. S. Soares, M. Y. Pac, G. Marini, Wolfram Dietrich Zeuner, A. Bamberger, Leszek Adamczyk, B.O. Zhautykov, Oliver Gutsche, M.I. Ferrero, S. Lammers, M. Moritz, Marco Schioppa, S. Magill, P. G. Pelfer, Elisabetta Gallo, Tachishige Hirose, James Ferrando, R. Gonçalo, O.M. Kind, S. K. Dhawan, D. H. Saxon, H.-P. Jakob, B. Mellado, Y. Iga, John Hart, Costas Foudas, Abhay Deshpande, S. Menary, I. Bloch, M. Wang, A.S. Proskuryakov, P. Cloth, B. Bodmann, R. Brugnera, N. Tuning, P. Göttlicher, D. Krakauer, R. Renner, J. H. Loizides, Luis Labarga, Kerstin Borras, V. A. Kuzmin, J. Tandler, N. Brümmer, X. Liu, T. Tsurugai, Y. Eisenberg, M. Rigby, R. Walczak, A. Pesci, C. Youngman, Dong-Chul Son, T. Tymieniecka, A. M. Kowal, A. Parenti, U. Kötz, S. Robins, Tadeusz Kowalski, E. Lohrmann, M. Helbich, Giuseppe Barbagli, Yuji Yamazaki, J. Hamilton, Igor Katkov, S Hillert, Detlef Filges, Alexander Kappes, Richard Hall-Wilton, B. Löhr, Gm Levman, R. Ciesielski, I.H. Park, H.F. Heath, Achim Geiser, Aleksander Filip Żarnecki, A. Bruni, G. Sartorelli, C. Glasman, D. Dannheim, Florian Goebel, Juan Terron, H. Kowalski, R. J. Nowak, S. Kitamura, T. Koop, J. J. Whitmore, N.N Vlasov, M. Vázquez, M Wing, I. A. Korzhavina, N. H. Brook, R.C.E. Devenish, Ignacio Redondo, A. Kotański, J. Lainesse, Roberto Carlin, L.A.T. Bauerdick, T. Kohno, P. Stopa, J.J. Engelen, Alexander Tapper, A. Bertolin, Anselmo Margotti, L. Zawiejski, M. Turcato, M. Barbi, E.A. Heaphy, Kunihiro Nagano, L.W. Wiggers, M. Basile, T. Haas, V. W. Hughes, N. Coppola, T. Nishimura, S.E.S. Schagen, E. Tassi, G.P. Heath, U. Karshon, E. Paul, O. Yu. Lukina, D. Boscherini, Liang Li, Danuta Kisielewska, A. Longhin, T. Tawara, M. Milite, R Wichmann, A. Nigro, M. Kuze, C. Genta, P.R.B Saull, Edouard Boos, P. Giusti, G. Drews, W. Hain, F. Palmonari, U. F. Katz, P.M. Kooijman, F. Sciulli, K. Klimek, K. C. Voss, R.J. Tapper, D. Hochman, S. Schlenstedt, P. J. Bussey, L.K Gladilin, Sergei Chekanov, Dirk-Uwe Bartsch, D.S. Bailey, A. Lupi, L. Bellagamba, A Polini, Y.K. Kim, K. Wick, D.D. Reeder, H.G.J.M. Tiecke, A. Sabetfakhri, Gy. Wolf, Alexander Savin, Jongmin Lee, J. Szuba, and Zeus (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, Astrophysics::High Energy Astrophysical Phenomena, Elementary particle, Inelastic scattering, COLOR DIPOLE MODEL, 01 natural sciences, Particle identification, High Energy Physics - Experiment, Nuclear physics, LEPTON-NUCLEON SCATTERING, 0103 physical sciences, JET CROSS-SECTIONS, CENTRAL TRACKING DETECTOR, STRONG-COUPLING CONSTANT, ZEUS BARREL CALORIMETER, GLUON JETS, PARTON DISTRIBUTIONS, BREIT FRAME, Nuclear Experiment, 010306 general physics, QC, Physics, Quantum chromodynamics, Research Groups and Centres\Physics\Low Temperature Physics, 010308 nuclear & particles physics, Faculty of Science\Physics, Perturbative QCD, Multiplicity (mathematics), ZEUS, HERA, Deep inelastic scattering, High Energy Physics::Experiment
Abstract: The subjet multiplicity has been measured in neutral current e+p interactions at Q**2 > 125 GeV**2 with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb-1. Jets were identified in the laboratory frame using the longitudinally invariant K_T cluster algorithm. The number of jet-like substructures within jets, known as the subjet multiplicity, is defined as the number of clusters resolved in a jet by reapplying the jet algorithm at a smaller resolution scale y_cut. Measurements of the mean subjet multiplicity, < n_sbj >, for jets with transverse energies E_T,jet >15 GeV are presented. Next-to-leading-order perturbative QCD calculations describe the measurements well. The value of alpha_s(M_Z), determined from < n_sbj > at y_cut=10**-2 for jets with 25 < E_T,jet < 71 GeV, is alpha_s (M_Z) = 0.1187 +/- 0.0017 (stat.) +0.0024 / -0.0009 (syst.) +0.0093 / -0.0076 (th.)., Comment: 27 pages, 4 figures, 3 tables; submitted to Phys. Lett
Published: 2003

28. Measurement of the open-charm contribution to the diffractive proton structure function

Author: Chekanov, S, Derrick, M, Krakauer, D, Loizides, JH, Magill, S, Musgrave, B, Repond, J, Yoshida, R, Mattingly, MCK, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, GC, Cifarelli, L, Cindolo, E, Contin, A, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Margotti, A, Nania, R, Palmonari, F, Pesci, A, Sartorelli, G, Zichichi, A, Aghuzumtsyan, G, Bartsch, D, Brock, I, Goers, S, Hartmann, H, Hilger, E, Irrgang, P, Jakob, HP, Kappes, A, Katz, UF, Kind, O, Meyer, U, Paul, E, Rautenberg, J, Renner, R, Stifutkin, A, Tandler, J, Voss, KC, Wang, M, Weber, A, Bailey, DS, Brook, NH, Cole, JE, Foster, B, Heath, GP, Heath, HF, Robins, S, Rodrigues, E, Scott, J, Tapper, RJ, Wing, A, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Kim, JY, Kim, YK, Lee, JH, Lim, IT, Pac, MY, Caldwell, A, Helbich, M, Liu, X, Mellado, B, Ning, Y, Paganis, S, Ren, Z, Schmidke, WB, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Olkiewicz, K, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, Grabowska-Bold, I, Kisielewska, D, Kowal, AM, Kowal, M, Kowalski, T, Przybycien, M, Suszycki, L, Szuba, D, Szuba, J, Kotanski, A, Slominski, W, Adler, V, Bauerdick, LAT, Behrens, U, Bloch, I, Borras, K, Chiochia, V, Dannheim, D, Drews, G, Fourletova, J, Fricke, U, Geiser, A, Goebel, F, Gottlicher, P, Gutsche, O, Haas, T, Hain, W, Hartner, GF, Hillert, S, Kahle, B, Kotz, U, Kowalski, H, Kramberger, G, Labes, H, Lelas, D, Lohr, B, Mankel, R, Melzer-Pellmann, IA, Moritz, M, Nguyen, CN, Notz, D, Petrucci, MC, Polini, A, Raval, A, Schneekloth, U, Selonke, F, Stoesslein, U, Wessoleck, H, Wolf, G, Youngman, C, Zeuner, W, Schlenstedt, S, Barbagli, G, Gallo, E, Genta, C, Pelfer, PG, Bamberger, A, Benen, A, Coppola, N, Bell, M, Bussey, PJ, Doyle, AT, Glasman, C, Hamilton, I, Hanlon, S, Lee, SW, Lupi, A, Saxon, DH, Skillicorn, IO, Gialas, I, Bodmann, B, Carli, T, Holm, U, Klimek, K, Krumnack, N, Lohrmann, E, Milite, M, Salehi, H, Stonjek, S, Wick, K, Ziegler, A, Collins-Tooth, C, Foudas, C, Goncalo, R, Long, KR, Tapper, AD, Cloth, P, Filges, D, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, AN, Boos, EG, Pokrovskiy, NS, Zhautykov, BO, Lim, H, Son, D, Piotrzkowski, K, Barreiro, E, Gonzalez, O, Labarga, L, del Peso, J, Tassi, E, Terron, J, Vazquez, M, Barbi, M, Corriveau, F, Gliga, S, Lainesse, J, Padhi, S, Stairs, DG, Tsurugai, T, Antonov, A, Danilov, P, Dolgoshein, BA, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, RK, Ermolov, R, Golubkov, YA, Katkov, II, Khein, LA, Korzhavina, IA, Kuzmin, VA, Levchenko, BB, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Vlasov, NN, Zotkin, SA, Grijpink, S, Koffeman, E, Kooijman, P, Maddox, E, Pellegrino, A, Schagen, S, Tiecke, H, Velthuis, J, Wiggers, L, de Wolf, E, Brummer, N, Bylsma, B, Durkin, LS, Ling, TY, Cooper-Sarkar, AM, Cottrell, A, Devenish, RCE, Ferrando, J, Grzelak, G, Patel, S, Sutton, MR, Walczak, R, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, E, Dusini, S, Garfagnini, A, Limentani, S, Longhin, A, Parenti, A, Posocco, M, Stanco, L, Turcato, M, Heaphy, EA, Metlica, F, Oh, BY, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, JC, McCubbin, NA, Heusch, C, Park, IH, Pavel, N, Abramowicz, H, Gabareen, A, Kananov, S, Kreisel, A, Levy, A, Kuze, M, Abe, T, Fusayasu, T, Kagawa, S, Kohno, T, Tawara, I, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Ferrero, MI, Monaco, V, Ruspa, M, Sacchi, R, Solano, A, Koop, T, Levman, GM, Martin, JF, Mirea, A, Butterworth, JM, Gwenlan, C, Hall-Wilton, R, Jones, TW, Lightwood, MS, West, BJ, Ciborowski, J, Ciesielski, R, Nowak, RJ, Pawlak, JM, Sztuk, J, Tymieniecka, T, Ukleja, A, Ukleja, J, Zarnecki, AF, Adamus, M, Plucinski, R, Eisenberg, Y, Gladilin, LK, Hochman, D, Karshon, U, Riveline, M, Kcira, D, Lammers, S, Li, L, Reeder, DD, Savin, AA, Smith, WH, Deshpande, A, Dhawan, S, Straub, PB, Bhadra, S, Catterall, CD, Fourletov, S, Hartner, G, Menary, S, Soares, M, Standage, J, Collaboration, ZEUS, UCL, and Zeus (IHEF, IoP, FNWI)
Subjects: Quark, Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, DEEP-INELASTIC-SCATTERING, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, CROSS-SECTIONS, PARTON DISTRIBUTIONS, HERA, QUARK, DISSOCIATION, DIS, Meson, FOS: Physical sciences, Parton, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Bibliography, Rapidity, Nuclear Experiment, 010306 general physics, QC, Physics, 010308 nuclear & particles physics, Detector, ZEUS, Deep inelastic scattering, 3. Good health, High Energy Physics::Experiment
Abstract: Production of D*+/-(2010) mesons in diffractive deep inelastic scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 82 pb^{-1}. Diffractive events were identified by the presence of a large rapidity gap in the final state. Differential cross sections have been measured in the kinematic region 1.5 < Q^2 < 200 GeV^2, 0.02 < y < 0.7, x_{IP} < 0.035, beta < 0.8, p_T(D*+/-) > 1.5 GeV and |��(D*+/-)| < 1.5. The measured cross sections are compared to theoretical predictions. The results are presented in terms of the open-charm contribution to the diffractive proton structure function. The data demonstrate a strong sensitivity to the diffractive parton densities., 35 pages, 11 figures, 6 tables
Published: 2003

29. Study of the azimuthal asymmetry of jets in neutral current deep inelastic scattering at HERA

Author: S Chekanov, D Krakauer, S Magill, B Musgrave, J Repond, R Yoshida, M.C.K Mattingly, P Antonioli, G Bari, M Basile, L Bellagamba, D Boscherini, A Bruni, G Bruni, G Cara Romeo, L Cifarelli, F Cindolo, A Contin, M Corradi, S De Pasquale, P Giusti, G Iacobucci, A Margotti, R Nania, F Palmonari, A Pesci, G Sartorelli, A Zichichi, G Aghuzumtsyan, D Bartsch, I Brock, S Goers, H Hartmann, E Hilger, P Irrgang, H.-P Jakob, A Kappes, U.F Katz, O Kind, E Paul, J Rautenberg, R Renner, H Schnurbusch, A Stifutkin, J Tandler, K.C Voss, M Wang, A Weber, D.S Bailey, N.H Brook, J.E Cole, B Foster, G.P Heath, H.F Heath, S Robins, E Rodrigues, J Scott, R.J Tapper, M Wing, M Capua, A Mastroberardino, M Schioppa, G Susinno, J.Y Kim, Y.K Kim, J.H Lee, I.T Lim, M.Y Pac, A Caldwell, M Helbich, X Liu, B Mellado, Y Ning, S Paganis, Z Ren, W.B Schmidke, F Sciulli, J Chwastowski, A Eskreys, J Figiel, K Olkiewicz, P Stopa, L Zawiejski, L Adamczyk, T Bołd, I Grabowska-Bołd, D Kisielewska, A.M Kowal, M Kowal, T Kowalski, M Przybycień, L Suszycki, D Szuba, J Szuba, A Kotański, W Słomiński, L.A.T Bauerdick, U Behrens, I Bloch, K Borras, V Chiochia, D Dannheim, M Derrick, G Drews, J Fourletova, A Fox-Murphy, U Fricke, A Geiser, F Goebel, P Göttlicher, O Gutsche, T Haas, W Hain, G.F Hartner, S Hillert, U Kötz, H Kowalski, G Kramberger, H Labes, D Lelas, B Löhr, R Mankel, I.-A Melzer-Pellmann, M Moritz, D Notz, M.C Petrucci, A Polini, A Raval, U Schneekloth, F Selonke, H Wessoleck, R Wichmann, G Wolf, C Youngman, W Zeuner, A Lopez-Duran Viani, A Meyer, S Schlenstedt, G Barbagli, E Gallo, C Genta, P.G Pelfer, A Bamberger, A Benen, N Coppola, M Bell, P.J Bussey, A.T Doyle, C Glasman, S Hanlon, S.W Lee, A Lupi, G.J McCance, D.H Saxon, I.O Skillicorn, I Gialas, B Bodmann, T Carli, U Holm, K Klimek, N Krumnack, E Lohrmann, M Milite, H Salehi, S Stonjek, K Wick, A Ziegler, Ar Ziegler, C Collins-Tooth, C Foudas, R Gonçalo, K.R Long, F Metlica, A.D Tapper, P Cloth, D Filges, M Kuze, K Nagano, K Tokushuku, S Yamada, Y Yamazaki, A.N Barakbaev, E.G Boos, N.S Pokrovskiy, B.O Zhautykov, H Lim, D Son, F Barreiro, O González, L Labarga, J del Peso, I Redondo, E Tassi, J Terrón, M Vázquez, M Barbi, A Bertolin, F Corriveau, A Ochs, S Padhi, D.G Stairs, M St-Laurent, T Tsurugai, A Antonov, P Danilov, B.A Dolgoshein, D Gladkov, V Sosnovtsev, S Suchkov, R.K Dementiev, P.F Ermolov, Yu.A Golubkov, I.I Katkov, L.A Khein, I.A Korzhavina, V.A Kuzmin, B.B Levchenko, O.Yu Lukina, A.S Proskuryakov, L.M Shcheglova, N.N Vlasov, S.A Zotkin, C Bokel, J Engelen, S Grijpink, E Koffeman, P Kooijman, E Maddox, A Pellegrino, S Schagen, H Tiecke, N Tuning, J.J Velthuis, L Wiggers, E de Wolf, N Brümmer, B Bylsma, L.S Durkin, T.Y Ling, S Boogert, A.M Cooper-Sarkar, R.C.E Devenish, J Ferrando, G Grzelak, T Matsushita, M Rigby, O Ruske, M.R Sutton, R Walczak, R Brugnera, R Carlin, F Dal Corso, S Dusini, A Garfagnini, S Limentani, A Longhin, A Parenti, M Posocco, L Stanco, M Turcato, E.A Heaphy, B.Y Oh, P.R.B Saull, J.J Whitmore, Y Iga, G D'Agostini, G Marini, A Nigro, C Cormack, J.C Hart, N.A McCubbin, C Heusch, I.H Park, N Pavel, H Abramowicz, A Gabareen, S Kananov, A Kreisel, A Levy, T Abe, T Fusayasu, S Kagawa, T Kohno, T Tawara, T Yamashita, R Hamatsu, T Hirose, M Inuzuka, S Kitamura, K Matsuzawa, T Nishimura, M Arneodo, M.I Ferrero, V Monaco, M Ruspa, R Sacchi, A Solano, R Galea, T Koop, G.M Levman, J.F Martin, A Mirea, A Sabetfakhri, J.M Butterworth, C Gwenlan, R Hall-Wilton, T.W Jones, M.S Lightwood, J.H Loizides, B.J West, J Ciborowski, R Ciesielski, R.J Nowak, J.M Pawlak, B Smalska, J Sztuk, T Tymieniecka, A Ukleja, J Ukleja, A.F Żarnecki, M Adamus, P Plucinski, Y Eisenberg, L.K Gladilin, D Hochman, U Karshon, D Kçira, S Lammers, L Li, D.D Reeder, A.A Savin, W.H Smith, A Deshpande, S Dhawan, V.W Hughes, P.B Straub, S Bhadra, C.D Catterall, S Fourletov, S Menary, M Soares, and J Standage
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, FOS: Physical sciences, 01 natural sciences, CROSS-SECTIONS, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), PROTON-SCATTERING, LEPTON-NUCLEON SCATTERING, 0103 physical sciences, EVENT GENERATOR, 010306 general physics, Nuclear Experiment, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, QUANTUM CHROMODYNAMICS, PARTON DISTRIBUTIONS, HADRON-COLLISIONS, QC, Event generator, Quantum chromodynamics, Physics, Research Groups and Centres\Physics\Low Temperature Physics, ZEUS (particle detector), Luminosity (scattering theory), Neutral current, 010308 nuclear & particles physics, Scattering, Faculty of Science\Physics, ZEUS, HERA, Deep inelastic scattering, High Energy Physics::Experiment
Abstract: The azimuthal distribution of jets produced in the Breit frame in high-Q**2 deep inelastic e+p scattering has been studied with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb-1. The measured azimuthal distribution shows a structure that is well described by next-to-leading-order QCD predictions over the Q**2 range considered, Q**2>125 GeV**2., 21 pages, 3 figures, 3 tables; submitted to Phys. Lett
Published: 2002

30. Multiplicity moments in deep inelastic scattering at HERA

Author: Chekanov, S, Derrick, M, Krakauer, D, Magill, S, Musgrave, B, Pellegrino, A, Repond, J, Stanek, R, Yoshida, R, Mattingly, M C K, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, G C, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Sartorelli, G, Zichichi, A, Aghuzumtsyan, G, Brock, I, Goers, S, Hartmann, H, Hilger, E, Irrgang, P, Jakob, H P, Kappes, A, Katz, U F, Kerger, R, Kind, O, Paul, E, Rautenberg, J, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, K C, Weber, A, Wieber, H, Bailey, D S, Brook, N H, Cole, J E, Foster, B, Heath, G P, Heath, H F, Robins, S, Rodrigues, E, Scott, J, Tapper, R J, Wing, M, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Jeoung, H Y, Kim, J Y, Lee, J H, Lim, I T, Ma, K J, Pac, M Y, Caldwell, A, Helbich, M, Liu, W, Liu, X, Mellado, B, Paganis, S, Sampson, S, Schmidke, W B, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Olkiewicz, K, Przybycien, M B, Stopa, P, Zawiejski, L, Bednarek, B, Jelen, K, Kisielewska, D, Kowal, A M, Kowal, M, Kowalski, T, Mindur, B, Przybycien, M, Rulikowska-Zarebska, E, Suszycki, L, Szuba, D, Kotanski, A, Bauerdick, L A T, Behrens, U, Borras, K, Chiochia, V, Crittenden, J, Dannheim, D, Desler, K, Drews, G, Fox-Murphy, A, Fricke, U, Geiser, A, Goebel, F, Gottlicher, P, Graciani, R, Haas, T, Hain, W, Hartner, G F, Hebbel, K, Hillert, S, Koch, W, Kotz, U, Kowalski, H, Labes, H, Lohr, B, Mankel, R, Martens, J, Martinez, M, Milite, M, Moritz, M, Notz, D, Petrucci, M C, Polini, A, Savin, A A, Schneekloth, U, Selonke, F, Stonjek, S, Wolf, G, Wollmer, U, Whitmore, J J, Wichmann, R, Youngman, C, Zeuner, W, Coldewey, C, Viani, A L D, Meyer, A, Schlenstedt, S, Barbagli, G, Gallo, E, Pelfer, P G, Bamberger, A, Benen, A, Coppola, N, Markun, P, Raach, H, Wolfle, S, Bell, M, Bussey, P J, Doyle, A T, Glasman, C, Lee, S W, Lupi, A, McCance, G J, Saxon, D H, Skillicorn, I O, Bodmann, B, Gendner, N, Holm, U, Salehi, H, Wick, K, Yildirim, A, Ziegler, A, Carli, T, Garfagnini, A, Gialas, I, Lohrmann, E, Foudas, C, Goncalo, R, Long, K R, Metlica, F, Miller, D B, Tapper, A D, Walker, R, Cloth, P, Filges, D, Ishii, T, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, A N, Boos, E G, Pokrovskiy, N S, Zhautykov, B O, Ahn, S H, Lee, S B, Park, S K, Lim, H, Son, D, Barreiro, F, Garcia, G, Gonzalez, O, Labarga, L, del Peso, J, Redondo, I, Terron, J, Vazquez, M, Barbi, M, Corriveau, F, Padhi, S, Stairs, D G, Tsurugai, T, Antonov, A, Bashkirov, V, Danilov, P, Dolgoshein, B A, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, R K, Ermolov, P F, Golubkov, Y A, Katkov, I I, Khein, L A, Korotkova, N A, Korzhavina, I A, Kuzmin, V A, Levchenko, B B, Lukina, O Y, Proskuryakov, A S, Shcheglova, L M, Solomin, A N, Vlasov, N N, Zotkin, S A, Bokel, C, Botje, M, Engelen, J, Grijpink, S, Koffeman, E, Kooijman, P, Schagen, S, van Sighem, A, Tassi, E, Tiecke, H, Tuning, N, Velthuis, J J, Vossebeld, J, Wiggers, L, de Wolf, E, Brummer, N, Bylsma, B, Durkin, L S, Gilmore, J, Ginsburg, C M, Kim, C L, Ling, T Y, Boogert, S, Cooper-Sarkar, A M, Devenish, R C E, Ferrando, J, Grosse-Knetter, J, Matsushita, T, Rigby, M, Ruske, O, Sutton, M R, Walczak, R, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, F, Dusini, S, Limentani, S, Longhin, A, Parenti, A, Posocco, M, Stanco, L, Turcato, M, Adamczyk, L, Iannotti, L, Oh, B Y, Saull, P R B, Toothacker, W S, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, J C, McCubbin, N A, Epperson, D, Heusch, C, Sadrozinski, H F W, Seiden, A, Williams, D C, Park, I H, Pavel, N, Abramowicz, H, Dagan, S, Gaareen, A, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Kehno, T, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Cartiglia, N, Cirio, R, Costa, M, Ferrero, M I, Maselli, S, Monaco, V, Peroni, C, Ruspa, M, Sacchi, R, Solano, A, Staiano, A, Bailey, D C, Fagerstroem, C P, Galea, R, Koop, T, Levman, G M, Martin, J F, Mirea, A, Sabetfakhri, A, Butterworth, J M, Gwenlan, C, Hayes, M E, Heaphy, E A, Jones, T W, Lane, J B, West, B J, Ciborowski, J, Ciesielski, R, Grzelak, G, Nowak, R J, Pawlak, J M, Plucinski, P, Smalska, B, Tymieniecka, T, Ukleja, J, Zakrzewski, J A, Zarnecki, A F, Adamus, M, Sztuk, J, Deppe, O, Eisenberg, Y, Gladilin, L K, Hochman, D, Karshon, U, Breitweg, J, Chapin, D, Cross, R, Kcira, D, Lammers, S, Reeder, D D, Smith, W H, Deshpande, A, Dhawan, S, Hughes, V W, Straub, P B, Bhadra, S, Catterall, C D, Frisken, W R, Hall-Wilton, R, Khakzad, M, Menary, S, ZEUS Collaboration, and Zeus (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, HIGH-ENERGY, MONTE-CARLO GENERATOR, PHASE-SPACE BINS, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, STRANGE ATTRACTORS, Nuclear physics, QCD JETS, High Energy Physics - Experiment (hep-ex), HADRON SPECTRA, 0103 physical sciences, EVENT GENERATOR, GENERALIZED DIMENSIONS, Multiplicity (chemistry), 010306 general physics, QC, Event generator, Physics, Research Groups and Centres\Physics\Low Temperature Physics, 010308 nuclear & particles physics, Scattering, Faculty of Science\Physics, Perturbative QCD, ZEUS, HERA, MULTIPARTON CORRELATIONS, PARTON DISTRIBUTIONS, Deep inelastic scattering, Charged particle, Transverse plane, High Energy Physics::Experiment
Abstract: Multiplicity moments of charged particles in deep inelastic E+P scattering have been measured with the ZEUS detector at HERA using an integrated luminosity of 38.4 pb^{-1}$. The moments for Q^2 > 1000 GeV^2 were studied in the current region of the Breit frame. The evolution of the moments was investigated as a function of restricted regions in polar angle and, for the first time, both in the transverse momentum and in absolute momentum of final-state particles. Analytic perturbative QCD predictions in conjunction with the hypothesis of Local Parton-Hadron Duality (LPHD) reproduce the trends of the moments in polar-angle regions, although some discrepancies are observed. For the moments restricted either in transverse or absolute momentum, the analytic results combined with the LPHD hypothesis show considerable deviations from the measurements. The study indicates a large influence of the hadronisation stage on the multiplicity distributions in the restricted phase-space regions studied here, which is inconsistent with the expectations of the LPHD hypothesis., 19 pages, 6 eps figures, submitted to Phys. Lett. B
Published: 2002

31. Properties of hadronic final states in diffractive deep inelastic ep scattering at DESY HERA

Author: Chekanov, S, Derrick, M, Krakauer, D, Magill, S, Musgrave, B, Pellegrino, A, Repond, J, Yoshida, R, Mattingly, M C K, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, G C, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Sartorelli, G, Zichichi, A, Aghuzumtsyan, G, Brock, I, Goers, S, Hartmann, H, Hilger, E, Irrgang, P, Jakob, H P, Kappes, A, Katz, U F, Kerger, R, Kind, O, Paul, E, Rautenberg, J, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, K C, Weber, A, Wieber, H, Bailey, D S, Brook, N H, Cole, J E, Foster, B, Heath, G P, Heath, H F, Robins, S, Rodrigues, E, Scott, J, Tapper, R J, Wing, M, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Jeoung, H Y, Kim, J Y, Lee, J H, Lim, I T, Ma, K J, Pac, M Y, Caldwell, A, Helbich, M, Liu, W, Liu, X, Mellado, B, Paganis, S, Sampson, S, Schmidke, W B, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Olkiewicz, K, Przybycien, M B, Stopa, P, Zawiejski, L, Bednarek, B, Grabowska-Bold, I, Jelen, K, Kisielewska, D, Kowal, A M, Kowal, M, Kowalski, T, Mindur, B, Przybycien, M, Rulikowska-Zarebska, E, Suszycki, L, Szuba, D, Szuba, J, Kotanski, A, Bauerdick, L A T, Behrens, U, Borras, K, Chiochia, V, Crittenden, J, Dannheim, D, Desler, K, Drews, G, Fox-Murphy, A, Fricke, U, Geiser, A, Goebel, R, Gottlicher, P, Graciani, R, Haas, T, Hain, W, Hartner, G F, Hebbel, K, Hillert, S, Koch, W, Kotz, U, Kowalski, H, Labes, H, Lohr, B, Mankel, R, Martens, J, Martinez, M, Milite, M, Moritz, M, Notz, D, Petrucci, M C, Polini, A, Schneekloth, U, Selonke, F, Stonjek, S, Wolf, G, Wollmer, U, Whitmore, J J, Wichmann, R, Youngman, C, Zeuner, W, Coldewey, C, Viani, A L D, Meyer, A, Schlenstedt, S, Barbagli, G, Gallo, E, Pelfer, P G, Bamberger, A, Benen, A, Coppola, N, Markun, P, Raach, H, Wolfle, S, Bell, M, Bussey, P J, Doyle, A T, Glasman, C, Lee, S W, Lupi, A, McCance, G J, Saxon, D H, Skillicorn, I O, Bodmann, B, Gendner, N, Holm, U, Salehi, H, Wick, K, Yildirim, A, Ziegler, A, Carli, T, Garfagnini, A, Gialas, I, Lohrmann, E, Foudas, C, Goncalo, R, Long, K R, Metlica, F, Miller, D B, Tapper, A D, Walker, R, Cloth, P, Filges, D, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, A N, Boos, E G, Pokrovskiy, N S, Zhautykov, B O, Ahn, S H, Lee, S B, Park, S K, Lim, H, Son, D, Barreiro, F, Garcia, G, Gonzalez, O, Labarga, L, del Peso, J, Redondo, I, Terron, J, Vazquez, M, Barbi, M, Bertolin, A, Corriveau, F, Ochs, A, Padhi, S, Stairs, D G, Tsurugai, T, Antonov, A, Bashkirov, V, Danilov, P, Dolgoshein, B A, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, R K, Ermolov, P F, Golubkov, Y A, Katkov, I I, Khein, L A, Korotkova, N A, Korzhavina, I A, Kuzmin, V A, Levchenko, B B, Lukina, O Y, Proskuryakov, A S, Shcheglova, L M, Solomin, A N, Vlasov, N N, Zotkin, S A, Bokel, C, Engelen, J, Grijpink, S, Maddox, E, Koffeman, E, Kooijman, P, Schagen, S, Tassi, E, Tiecke, H, Tuning, N, Velthuis, J J, Wiggers, L, de Wolf, E, Brummer, N, Bylsma, B, Durkin, L S, Gilmore, J, Ginsburg, C M, Kim, C L, Ling, T Y, Boogert, S, Cooper-Sarkar, A M, Devenish, R C E, Ferrando, J, Grosse-Knetter, J, Matsushita, T, Rigby, M, Ruske, O, Sutton, M R, Walczak, R, Brugnera, R, Carlin, R, Dal Corso, F, Dusini, S, Limentani, S, Longhin, A, Parenti, A, Posocco, M, Stanco, L, Turcato, M, Adamczyk, L, Iannotti, L, Oh, B Y, Saull, P R B, Toothacker, W S, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, J C, McCubbin, N A, Epperson, D, Heusch, C, Sadrozinski, H, Seiden, A, Williams, D C, Park, I H, Pavel, N, Abramowicz, H, Dagan, S, Gabareen, A, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Kohno, T, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Cartiglia, N, Cirio, R, Costa, M, Ferrero, M I, Maselli, S, Monaco, V, Peroni, C, Ruspa, M, Sacchi, R, Solano, A, Staiano, A, Bailey, D C, Fagerstroem, C P, Galea, R, Koop, T, Levman, G M, Martin, J F, Mirea, A, Sabetfakhri, A, Butterworth, J M, Gwenlan, C, Hall-Wilton, R, Hayes, M E, Heaphy, E A, Jones, T W, Lane, J B, Lightwood, M S, West, B J, Ciborowski, J, Ciesielski, R, Grzelak, G, Nowak, R J, Pawlak, J M, Smalska, B, Tymieniecka, T, Ukleja, A, Ukleja, J, Zakrzewski, J A, Zarnecki, A F, Adamus, M, Plucinski, P, Sztuk, J, Eisenberg, Y, Gladilin, L K, Hochman, D, Karshon, U, Breitweg, J, Chapin, D, Cross, R, Keira, D, Lammers, S, Reeder, D D, Savin, A A, Smith, W H, Deshpande, A, Dhawan, S, Hughes, V W, Straub, P B, Bhadra, S, Catterall, C D, Frisken, W R, Khakzad, M, Menary, S, ZEUS Collaboration, and Zeus (IHEF, IoP, FNWI)
Subjects: Diffraction, ZEUS, LARGE-RAPIDITY-GAP, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, MONTE-CARLO GENERATOR, E&E ANNIHILATION, GLUON BREMSSTRAHLUNG, HIGH-ENERGIES, 3-JET EVENTS, CONSTRUCTION, MULTIPLICITY, Hadron, diffraction, Parton, (quark antiquark gluon) [final state], leading particle [p], event shape analysis, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), dissociation [photon], Nuclear Experiment, QC, colliding beams [electron p], Physics, resolved [pomeron], radiation [gluon], HERA, DESY HERA Stor, Nuclear and High Energy Physics, Particle physics, FOS: Physical sciences, energy flow, Nuclear physics, +p+electron+%28n%29hadron%22">electron p --> p electron (n)hadron, 0103 physical sciences, ddc:530, 010306 general physics, multiple production [hadron], Research Groups and Centres\Physics\Low Temperature Physics, seagull [effect], 010308 nuclear & particles physics, Scattering, Faculty of Science\Physics, High Energy Physics::Phenomenology, DESY, Deep inelastic scattering, pair production [quark], deep inelastic scattering [electron p], High Energy Physics::Experiment, experimental results
Abstract: Characteristics of the hadronic final state of diffractive deep inelastic scattering events, ep -> eXp, were studied in the kinematic range 4 < M_X < 35 GeV, 4 < Q^2 < 150 GeV^2, 70 < W < 250 GeV and 0.0003 < x_pom < 0.03 with the ZEUS detector at HERA using an integrated luminosity of 13.8 pb^{-1}. The events were tagged by identifying the diffractively scattered proton using the leading proton spectrometer. The properties of the hadronic final state, X, were studied in its center-of-mass frame using thrust, thrust angle, sphericity, energy flow, transverse energy flow and ``seagull'' distributions. As the invariant mass of the system increases, the final state becomes more collimated, more aligned and more asymmetric in the average transverse momentum with respect to the direction of the virtual photon. Comparisons of the properties of the hadronic final state with predictions from various Monte Carlo model generators suggest that the final state is dominated by qqg states at the parton level., 32 pages, 14 figures, submitted to PRD v2, (v3?): corrected author list, typo on page 2
Published: 2002
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32. Inclusive jet cross sections in the Breit frame in neutral current deep inelastic scattering at HERA and determination of alpha(s)

Author: Chekanov, S, Krakauer, D, Magill, S, Musgrave, B, Repond, J, Yoshida, R, Mattingly, Mck, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, Gc, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, DE PASQUALE, S, Giusti, P, Iacobucci, G, Margotti, A, Nania, R, Palmonari, F, Pesci, A, Sartorelli, G, Zichichi, A, Aghuzumtsyan, G, Bartsch, D, Brock, I, Crittenden, J, Goers, S, Hartmann, H, Hilger, E, Irrgang, P, Jakob, Hp, Kappes, A, Katz, Uf, Kerger, R, Kind, O, Paul, E, Rautenberg, J, Renner, R, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, Kc, Weber, A, Bailey, Ds, Brook, Nh, Cole, Je, Foster, B, Heath, Gp, Heath, Hf, Robins, S, Rodrigues, E, Scott, J, Tapper, Rj, Wing, M, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Kim, Jy, Kim, Yk, Lee, Jh, Lim, It, Pac, My, Caldwell, A, Helbich, M, Liu, X, Mellado, B, Ning, Y, Paganis, S, Ren, Z, Schmidke, Wb, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Olkiewicz, K, Piotrzkowski, K, Przybycien, Mb, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, GRABOWSKA BOLD, I, Kisielewska, D, Kowal, Am, Kowal, M, Kowalski, T, Przybycien, M, Suszycki, L, Szuba, D, Szuba, J, Kotanski, A, Slominski, W, Bauerdick, Lat, Behrens, U, Borras, K, Chiochia, V, Dannheim, D, Derrick, M, Drews, G, Fourletova, J, FOX MURPHY, A, Fricke, U, Geiser, A, Goebel, F, Gottlicher, P, Gutsche, O, Haas, T, Hain, W, Hartner, Gf, Hillert, S, Kotz, U, Kowalski, H, Kramberger, G, Labes, H, Lelas, D, Lohr, B, Mankel, R, Martinez, M, MELZER PELLMANN IA, Moritz, M, Notz, D, Petrucci, Mc, Polini, A, Raval, A, Schneekloth, U, Selonke, F, Surrow, B, Wessoleck, H, Wichmann, R, Wolf, G, Youngman, C, Zeuner, W, Viani, Ald, Meyer, A, Schlenstedt, S, Barbagli, G, Gallo, E, Genta, C, Pelfer, Pg, Bamberger, A, Benen, A, Coppola, N, Raach, H, Bell, M, Bussey, Pj, Doyle, At, Glasman, C, Hanlon, S, Lee, Sw, Lupi, A, Mccance, Gj, Saxon, Dh, Skillicorn, Io, Gialas, I, Bodmann, B, Carli, T, Holm, U, Klimek, K, Krumnack, N, Lohrmann, E, Milite, M, Salehi, H, Stonjek, S, Wick, K, Ziegler, A, COLLINS TOOTH, C, Foudas, C, Goncalo, R, Long, Kr, Metlica, F, Miller, Db, Tapper, Ad, Walker, R, Cloth, P, Filges, D, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, An, Boos, Eg, Pokrovskiy, Ns, Zhautykov, Bo, Lim, H, Son, D, Barreiro, F, Gonzalez, O, Labarga, L, DEL PESO, J, Redondo, I, Terron, J, Vazquez, M, Barbi, M, Bertolin, A, Corriveau, F, Ochs, A, Padhi, S, Stairs, Dg, ST LAURENT, M, Tsurugai, T, Antonov, A, Danilov, P, Dolgoshein, Ba, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, Rk, Ermolov, Pf, Golubkov, Ya, Katkov, Ii, Khein, La, Korzhavina, Ia, Kuzmin, Va, Levchenko, Bb, Lukina, Oy, Proskuryakov, As, Shcheglova, Lm, Vlasov, Nn, Zotkin, Sa, Bokel, C, Engelen, J, Grijpink, S, Koffeman, E, Kooijman, P, Maddox, E, Pellegrino, A, Schagen, S, Tassi, E, Tiecke, H, Tuning, N, Velthuis, Jj, Wiggers, L, DE WOLF, E, Brummer, N, Bylsma, B, Durkin, Ls, Gilmore, J, Ginsburg, Cm, Kim, Cl, Ling, Ty, Boogert, S, COOPER SARKAR AM, Devenish, Rce, Ferrando, J, Grzelak, G, Matsushita, T, Rigby, M, Ruske, O, Sutton, Mr, Walczak, R, Brugnera, Riccardo, Carlin, Roberto, DAL CORSO, F, Dusini, S, Garfagnini, Alberto, Limentani, S, Longhin, A, Parenti, A, Posocco, M, Stanco, L, Turcato, M, Heaphy, Ea, Oh, By, Saull, Prb, Whitmore, Jj, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, Jc, Mccubbin, Na, Heusch, C, Park, Ih, Pavel, N, Abramowicz, H, Gabareen, A, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Kagawa, S, Kohno, T, Tawara, T, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Cartiglia, N, Cirio, R, Costa, M, Ferrero, Mi, Maselli, S, Monaco, V, Peroni, C, Ruspa, M, Sacchi, R, Solano, A, Staiano, A, Galea, R, Koop, T, Levman, Gm, Martin, Jf, Mirea, A, Sabetfakhri, A, Butterworth, Jm, Gwenlan, C, HALL WILTON, R, Jones, Tw, Lightwood, Ms, Loizides, Jh, West, Bj, Ciborowski, J, Ciesielski, R, Nowak, Rj, Pawlak, Jm, Smalska, B, Sztuk, J, Tymieniecka, T, Ukleja, A, Ukleja, J, Zarnecki, Af, Adamus, M, Plucinski, P, Eisenberg, Y, Gladilin, Lk, Hochman, D, Karshon, U, Kcira, D, Lammers, S, Li, L, Reeder, Dd, Savin, Aa, Smith, Wh, Deshpande, A, Dhawan, S, Hughes, Vw, Straub, Pb, Bhadra, S, Catterall, Cd, Fourletov, S, Menary, S, Soares, M, Standage, J, and CA ZEUS COLLABORATION
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, Astrophysics::High Energy Astrophysical Phenomena, DYNAMICAL PARTON DISTRIBUTIONS, FOS: Physical sciences, COLOR DIPOLE MODEL, 01 natural sciences, High Energy Physics - Experiment, DEUTERON STRUCTURE FUNCTIONS, HIGH STATISTICS MEASUREMENT, LEPTON-NUCLEON SCATTERING, CENTRAL TRACKING DETECTOR, STRONG-COUPLING CONSTANT, ZEUS BARREL CALORIMETER, F-2 STRUCTURE-FUNCTION, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Nuclear Experiment, 010306 general physics, Quantum chromodynamics, Physics, Research Groups and Centres\Physics\Low Temperature Physics, Jet (fluid), ZEUS (particle detector), Luminosity (scattering theory), Neutral current, Faculty of Science\Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, ZEUS, HERA, Deep inelastic scattering, Pseudorapidity, High Energy Physics::Experiment
Abstract: Inclusive jet differential cross sections have been measured in neutral current deep inelastic e+p scattering for boson virtualities Q**2>125 GeV**2. The data were taken using the ZEUS detector at HERA and correspond to an integrated luminosity of 38.6 pb-1. Jets were identified in the Breit frame using the longitudinally invariant K_T cluster algorithm. Measurements of differential inclusive jet cross sections are presented as functions of jet transverse energy (E_T,jet), jet pseudorapidity and Q**2, for jets with E_T,jet>8 GeV. Next-to-leading-order QCD calculations agree well with the measurements both at high Q**2 and high E_T,jet. The value of alpha_s(M_Z), determined from an analysis of dsigma/dQ**2 for Q**2>500 GeV**2, is alpha_s(M_Z) = 0.1212 +/- 0.0017 (stat.) +0.0023 / -0.0031 (syst.) +0.0028 / -0.0027 (th.)., 34 pages, 6 figures, 8 tables; submitted to Phys. Lett
Published: 2002

33. Dijet production in neutral current deep inelastic scattering at HERA

Author: Chekanov, S, Derrick, M, Krakauer, D, Magill, S, Musgrave, B, Pellegrino, A, Repond, J, Yoshida, R, Mattingly, MCK, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, GC, Cifarelli, L, Cindolo, F, Contin, A, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Sartorelli, G, Zichichi, A, Aghuzumtsyan, G, Brock, I, Goers, S, Hartmann, H, Hilger, E, Irrgang, P, Jakob, HP, Kappes, A, Katz, UF, Kerger, R, Kind, O, Paul, E, Rautenberg, J, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, KC, Weber, A, Wieber, H, Bailey, DS, Brook, NH, Cole, JE, Foster, B, Heath, GP, Heath, HF, Robins, S, Rodrigues, E, Scott, J, Tapper, RJ, Wing, M, Capua, N, Mastroberardino, A, Schioppa, M, Susinno, G, Jeoung, HY, Kim, JY, Lee, JH, Lim, IT, Ma, KJ, Pac, MY, Caldwell, A, Helbich, M, Liu, X, Mellado, B, Paganis, S, Schmidke, WB, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Olkiewicz, K, Przybycien, MB, Stopa, P, Zawiejski, L, Bednarek, B, Grabowska-Bold, L, Jelen, K, Kisielewska, D, Kowal, AM, Kowal, M, Kowalski, T, Mindur, B, Przybycien, M, Rulikowska-Zarebska, E, Suszycki, L, Szuba, D, Szuba, J, Kotanski, A, Bauerdick, LAT, Behrens, U, Borras, K, Chiochia, V, Crittenden, J, Dannheim, D, Desler, K, Drews, G, Fox-Murphy, A, Fricke, U, Geiser, A, Goebel, F, Gottlicher, P, Graciani, R, Haas, T, Hain, W, Hartner, GF, Hebbel, K, Hillert, S, Kotz, U, Kowalski, H, Labes, H, Lohr, B, Mankel, R, Martens, J, Martinez, M, Milite, M, Moritz, M, Notz, D, Petrucci, MC, Polini, A, Schneekloth, U, Selonke, F, Stonjek, S, Surrow, B, Whitmore, JJ, Wichmann, R, Wolf, G, Youngman, C, Zeuner, W, Coldewey, C, Viani, ALD, Meyer, A, Schlenstedt, S, Barbagli, G, Gallo, E, Pelfer, PG, Bamberger, A, Benen, A, Coppola, N, Markun, P, Raach, H, Wolfle, S, Bell, M, Bussey, PJ, Doyle, AT, Glasman, C, Lee, SW, Lupi, A, McCance, GJ, Saxon, DH, Skillicorn, IO, Bodmann, B, Gendner, N, Holm, U, Salehi, H, Wick, K, Yildirim, A, Ziegler, A, Carli, T, Garfagnini, A, Gialas, I, Lohrmann, E, Foudas, C, Goncalo, R, Long, KR, Metlica, F, Miller, DB, Tapper, AD, Walker, R, Cloth, P, Filges, D, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, AN, Boos, EG, Pokrovskiy, NS, Zhautykov, BO, Ahn, SH, Lee, SB, Park, SK, Lim, H, Son, D, Barreiro, F, Garcia, G, Gonzalez, O, Labarga, L, del Peso, J, Redondo, I, Terron, J, Vazquez, M, Barbi, M, Bertolin, A, Corriveau, F, Ochs, A, Padhi, S, Stairs, DG, Tsurugai, T, Antonov, A, Bashkirov, V, Danilov, P, Dolgoshein, BA, Gladkov, D, Sosnovtsev, V, Suchkov, S, Dementiev, RK, Ermolov, PF, Golubkov, YA, Katkov, II, Khein, LA, Korotkova, NA, Korzhavina, IA, Kuzmin, VA, Levchenko, BB, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Solomin, AN, Vlasov, NN, Zotkin, SA, Bokel, C, Engelen, J, Grijpink, S, Koffeman, E, Kooijman, P, Maddox, E, Schagen, S, Tassi, E, Tiecke, H, Tuning, N, Velthuis, JJ, Wiggers, L, de Wolf, E, Brummer, N, Bylsma, B, Durkin, LS, Gilmore, J, Ginsburg, CM, Kim, CL, Ling, TY, Boogert, S, Cooper-Sarkar, AM, Devenish, RCE, Ferrando, J, Grosse-Knetter, J, Matsushita, T, Rigby, M, Ruske, O, Sutton, MR, Walczak, R, Brugnera, R, Carlin, R, Dal Corso, F, Dusini, S, Limentani, S, Longhin, A, Parenti, A, Posocco, M, Stanco, L, Turcato, M, Adamczyk, L, Iannotti, L, Oh, BY, Saull, PRB, Toothacker, WS, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, JC, McCubbin, NA, Heusch, C, Park, IH, Pavel, N, Abramowicz, H, Dagan, S, Gabareen, A, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Kohno, T, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kitamura, S, Matsuzawa, K, Nishimura, T, Arneodo, M, Cartiglia, N, Cirio, R, Costa, M, Ferrero, MI, Maselli, S, Monaco, V, Peroni, C, Ruspa, M, Sacchi, R, Solano, A, Staiano, A, Bailey, DC, Fagerstroem, CP, Galea, R, Koop, T, Levman, GM, Martin, JF, Mirea, A, Sabetfakhri, A, Butterworth, JM, Gwenlan, C, Hall-Wilton, R, Hayes, ME, Heaphy, EA, Jones, TW, Lane, JB, Lightwood, MS, West, BJ, Ciborowski, J, Ciesielski, R, Grzelak, G, Nowak, RJ, Pawlak, JM, Smalska, B, Tymieniecka, T, Ukleja, A, Ukleja, J, Zakrzewski, JA, Zarnecki, AF, Adamus, M, Plucinski, P, Sztuk, J, Eisenberg, Y, Gladilin, LK, Hochman, D, Karshon, U, Breitweg, J, Chapin, D, Cross, R, Kcira, D, Lammers, S, Reeder, DD, Savin, AA, Smith, WH, Deshpande, A, Dhawan, S, Hughes, VW, Straub, PB, Bhadra, S, Catterall, CD, Frisken, WR, Khakzad, M, Menary, S, Collaboration, ZEUS, and Zeus (IHEF, IoP, FNWI)
Subjects: Particle physics, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), FOS: Physical sciences, Parton, Jet (particle physics), High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), LOW-X, LEPTON-NUCLEON SCATTERING, STRONG-COUPLING CONSTANT, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, JET CROSS-SECTIONS, GLUON DENSITY, QCD ANALYSIS, PERTURBATION-THEORY, Engineering (miscellaneous), QC, Quantum chromodynamics, Physics, ZEUS (particle detector), High Energy Physics::Phenomenology, Perturbative QCD, ZEUS, HERA, Deep inelastic scattering, Distribution function, High Energy Physics::Experiment
Abstract: Dijet cross sections in neutral current deep inelastic ep scattering have been measured in the range $10 < \Q2 < 10^4$ GeV$^2$ with the ZEUS detector at HERA using an integrated luminosity of 38.4 pb$^{-1}$. The cross sections, measured in the Breit frame using the $\kt$ jet algorithm, are compared with next-to-leading-order perturbative QCD calculations using proton parton distribution functions. The uncertainties of the QCD calculations have been studied. The predictions are in reasonable agreement with the measured cross sections over the entire kinematic range., 29 pages, 11 Figures (*.eps), psfig.sty
Published: 2001

34. Three-jet production in diffractive deep inelastic scattering at HERA

Author: S. Chekanov, M. Derrick, D. Krakauer, S. Magill, B. Musgrave, A. Pellegrino, J. Repond, R. Yoshida, M.C.K. Mattingly, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, G. Levi, A. Margotti, T. Massam, R. Nania, F. Palmonari, A. Pesci, G. Sartorelli, A. Zichichi, G. Aghuzumtsyan, I. Brock, S. Goers, H. Hartmann, E. Hilger, P. Irrgang, H.-P. Jakob, A. Kappes, U.F. Katz, R. Kerger, O. Kind, E. Paul, J. Rautenberg, H. Schnurbusch, A. Stifutkin, J. Tandler, K.C. Voss, A. Weber, H. Wieber, D.S. Bailey, N.H. Brook, J.E. Cole, B. Foster, G.P. Heath, H.F. Heath, S. Robins, E. Rodrigues, J. Scott, R.J. Tapper, M. Wing, M. Capua, A. Mastroberardino, M. Schioppa, G. Susinno, H.Y. Jeoung, J.Y. Kim, J.H. Lee, I.T. Lim, K.J. Ma, M.Y. Pac, A. Caldwell, M. Helbich, W. Liu, X. Liu, B. Mellado, S. Paganis, S. Sampson, W.B. Schmidke, F. Sciulli, J. Chwastowski, A. Eskreys, J. Figiel, K. Klimek, K. Olkiewicz, M.B. Przybycień, P. Stopa, L. Zawiejski, B. Bednarek, K. Jeleń, D. Kisielewska, A.M. Kowal, M. Kowal, T. Kowalski, B. Mindur, M. Przybycień, E. Rulikowska-Zarȩbska, L. Suszycki, D. Szuba, A. Kotański, L.A.T. Bauerdick, U. Behrens, K. Borras, V. Chiochia, J. Crittenden, D. Dannheim, K. Desler, G. Drews, A. Fox-Murphy, U. Fricke, A. Geiser, F. Goebel, P. Göttlicher, R. Graciani, T. Haas, W. Hain, G.F. Hartner, K. Hebbel, S. Hillert, W. Koch, U. Kötz, H. Kowalski, H. Labes, B. Löhr, R. Mankel, J. Martens, M. Martı́nez, M. Milite, M. Moritz, D. Notz, M.C. Petrucci, A. Polini, U. Schneekloth, F. Selonke, S. Stonjek, G. Wolf, U. Wollmer, J.J. Whitmore, R. Wichmann, C. Youngman, W. Zeuner, C. Coldewey, A. Lopez-Duran Viani, A. Meyer, S. Schlenstedt, G. Barbagli, E. Gallo, P.G. Pelfer, A. Bamberger, A. Benen, N. Coppola, P. Markun, H. Raach, S. Wölfle, M. Bell, P.J. Bussey, A.T. Doyle, C. Glasman, S.W. Lee, A. Lupi, G.J. McCance, D.H. Saxon, I.O. Skillicorn, B. Bodmann, N. Gendner, U. Holm, H. Salehi, K. Wick, A. Yildirim, A. Ziegler, T. Carli, A. Garfagnini, I. Gialas, E. Lohrmann, C. Foudas, R. Gonçalo, K.R. Long, F. Metlica, D.B. Miller, A.D. Tapper, R. Walker, P. Cloth, D. Filges, M. Kuze, K. Nagano, K. Tokushuku, S. Yamada, Y. Yamazaki, A.N. Barakbaev, E.G. Boos, N.S. Pokrovskiy, B.O. Zhautykov, S.H. Ahn, S.B. Lee, S.K. Park, H. Lim, D. Son, F. Barreiro, G. Garcı́a, O. González, L. Labarga, J. del Peso, I. Redondo, J. Terrón, M. Vázquez, M. Barbi, A. Bertolin, F. Corriveau, A. Ochs, S. Padhi, D.G. Stairs, T. Tsurugai, A. Antonov, V. Bashkirov, P. Danilov, B.A. Dolgoshein, D. Gladkov, V. Sosnovtsev, S. Suchkov, R.K. Dementiev, P.F. Ermolov, Yu.A. Golubkov, I.I. Katkov, L.A. Khein, N.A. Korotkova, I.A. Korzhavina, V.A. Kuzmin, B.B. Levchenko, O.Yu. Lukina, A.S. Proskuryakov, L.M. Shcheglova, A.N. Solomin, N.N. Vlasov, S.A. Zotkin, C. Bokel, J. Engelen, S. Grijpink, E. Maddox, E. Koffeman, P. Kooijman, S. Schagen, E. Tassi, H. Tiecke, N. Tuning, J.J. Velthuis, L. Wiggers, E. de Wolf, N. Brümmer, B. Bylsma, L.S. Durkin, J. Gilmore, C.M. Ginsburg, C.L. Kim, T.Y. Ling, S. Boogert, A.M. Cooper-Sarkar, R.C.E. Devenish, J. Ferrando, J. Große-Knetter, T. Matsushita, M. Rigby, O. Ruske, M.R. Sutton, R. Walczak, R. Brugnera, R. Carlin, F. Dal Corso, S. Dusini, S. Limentani, A. Longhin, A. Parenti, M. Posocco, L. Stanco, M. Turcato, L. Adamczyk, L. Iannotti, B.Y. Oh, P.R.B. Saull, W.S. Toothacker, Y. Iga, G. D'Agostini, G. Marini, A. Nigro, C. Cormack, J.C. Hart, N.A. McCubbin, D. Epperson, C. Heusch, H.F.-W. Sadrozinski, A. Seiden, D.C. Williams, I.H. Park, N. Pavel, H. Abramowicz, S. Dagan, A. Gabareen, S. Kananov, A. Kreisel, A. Levy, T. Abe, T. Fusayasu, T. Kohno, K. Umemori, T. Yamashita, R. Hamatsu, T. Hirose, M. Inuzuka, S. Kitamura, K. Matsuzawa, T. Nishimura, M. Arneodo, N. Cartiglia, R. Cirio, M. Costa, M.I. Ferrero, S. Maselli, V. Monaco, C. Peroni, M. Ruspa, R. Sacchi, A. Solano, A. Staiano, D.C. Bailey, C.-P. Fagerstroem, R. Galea, T. Koop, G.M. Levman, J.F. Martin, A. Mirea, A. Sabetfakhri, J.M Butterworth, C. Gwenlan, R. Hall-Wilton, M.E. Hayes, E.A. Heaphy, T.W. Jones, J.B. Lane, M.S. Lightwood, B.J. West, J. Ciborowski, R. Ciesielski, G. Grzelak, R.J. Nowak, J.M. Pawlak, B. Smalska, T. Tymieniecka, J. Ukleja, J.A. Zakrzewski, A.F. Żarnecki, M. Adamus, P. Plucinski, J. Sztuk, O. Deppe, Y. Eisenberg, L.K. Gladilin, D. Hochman, U. Karshon, J. Breitweg, D. Chapin, R. Cross, D. Kçira, S. Lammers, D.D. Reeder, A.A. Savin, W.H. Smith, A. Deshpande, S. Dhawan, V.W. Hughes, P.B. Straub, S. Bhadra, C.D. Catterall, W.R. Frisken, M. Khakzad, S. Menary, and Zeus (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, FINAL-STATE, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, COLOR DIPOLE MODEL, 01 natural sciences, CROSS-SECTIONS, High Energy Physics - Experiment, Nuclear physics, EVENTS, High Energy Physics - Experiment (hep-ex), Pomeron, LARGE-RAPIDITY-GAP, 0103 physical sciences, Rapidity, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, E+E-ANNIHILATION, QCD CASCADES, 010306 general physics, Nuclear Experiment, QC, Physics, Jet (fluid), Research Groups and Centres\Physics\Low Temperature Physics, ZEUS (particle detector), 010308 nuclear & particles physics, Faculty of Science\Physics, High Energy Physics::Phenomenology, HERA, Deep inelastic scattering, Gluon, Pseudorapidity, High Energy Physics::Experiment
Abstract: Three-jet production in the reaction ep --> eXp has been studied with the ZEUS detector at HERA using an integrated luminosity of 42.74 pb^-1. The data were measured in the kinematic region 5 < Q^2 < 100 GeV^2, 200 < W < 250 GeV and 23 < M_X < 40 GeV. The diffractive signal was selected by requiring a large rapidity gap in the outgoing proton direction. Jets were reconstructed in the centre-of-mass system of X using the exclusive k_T-algorithm. A sample of three-jet events in diffraction has been identified. Differential cross sections were measured as a function of the jet pseudorapidity and jet transverse momentum with respect to the virtual photon-Pomeron axis. The jets going in the Pomeron direction are broader than those going in the virtual-photon direction. This is consistent with models predicting that gluons are predominantly produced in the Pomeron direction and quarks in the virtual-photon direction., 14 pages, 5 figures and 7 tables. Submitted to Physics Letters B
Published: 2001

35. Angular and current-target correlations in deep inelastic scattering at HERA

Author: Breitweg, J, Chekanov, S, Derrick, M, Krakauer, D, Magill, S, Musgrave, B, Pellegrino, A, Repond, J, Stanek, R, Yoshida, R, Mattingly, Mck, Abbiendi, G, Anselmo, F, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, Gc, Castellini, G, Cifarelli, L, Cindolo, F, Contin, A, Coppola, N, Corradi, M, DE PASQUALE, S, Giusti, P, Iacobucci, G, Laurenti, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Polini, A, Sartorelli, G, Garcia, Yz, Zichichi, A, Amelung, C, Bornheim, A, Brock, I, Coboken, K, Crittenden, J, Deffner, R, Eckert, M, Hartmann, H, Heinloth, K, Heinz, L, Hilger, E, Jakob, Hp, Kappes, A, Katz, Uf, Kerger, R, Paul, E, Pfeiffer, M, Rautenberg, J, Schnurbusch, H, Stifutkin, A, Tandler, J, Weber, A, Wieber, H, Bailey, Ds, Barret, O, Cottingham, Wn, Foster, B, Heath, Gp, Heath, Hf, Mcfall, Jd, Piccioni, D, Scott, J, Tapper, Rj, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Jeoung, Hy, Kim, Jy, Lee, Jh, Lim, It, Ma, Kj, Pac, My, Caldwell, A, Cartiglia, N, Jing, Z, Liu, W, Mellado, B, Parsons, Ja, Ritz, S, Sacchi, R, Sampson, S, Sciulli, F, Zhu, Q, Borzemski, P, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Olkiewicz, K, Przybycien, Mb, Zawiejski, L, Adamczyk, L, Bednarek, B, Jelen, K, Kisielewska, D, Kowal, Am, Kowalski, T, Przybycien, M, RULIKOWSKA ZAREBSKA, E, Suszycki, L, Zajac, J, Dulinski, Z, Kotanski, A, Bauerdick, Lat, Behrens, U, Bienlein, Jk, Burgard, C, Desler, K, Drews, G, FOX MURPHY, A, Fricke, U, Goebel, F, Gottlicher, P, Graciani, R, Haas, T, Hain, W, Hartner, Gf, Hasell, D, Hebbel, K, Johnson, Kf, Kasemann, M, Koch, W, Kotz, U, Kowalski, H, Lindemann, L, Lohr, B, Martinez, M, Milewski, J, Milite, M, Monteiro, T, Moritz, M, Notz, D, Pelucchi, F, Piotrzkoswski, K, Rohde, M, Saull, Prb, Savin, Aa, Schneekloth, U, Schwarzer, O, Selonke, F, Sievers, M, Stonjek, S, Tassi, E, Wolf, G, Wollmer, U, Youngman, C, Zeuner, W, Burow, Bd, Coldewey, C, Grabosch, Hj, Viani, Ald, Meyer, A, Monig, K, Schlenstedt, S, Straub, Pb, Barbagli, G, Gallo, E, Pelfer, P, Maccarrone, G, Votano, L, Bamberger, A, Eisenhardt, S, Markun, P, Raach, H, Wolfle, S, Brook, Nh, Bussey, Pj, Doyle, At, Lee, Sw, Macdonald, N, Mccance, Gj, Saxon, Dh, Sinclair, Le, Skillicorn, Io, Strickland, E, Waugh, R, Bohnet, I, Gendner, N, Holm, U, MEYER LARSEN, A, Salehi, H, Wick, K, Garfagnini, Alberto, Gialas, I, Gladilin, Lk, Kcira, D, Klanner, R, Lohrmann, E, Poelz, G, Zetsche, F, Bacon, Tc, Cole, Je, Howell, G, Lamberti, L, Long, Kr, Miller, Db, Prinias, A, Sedgbeer, Jk, Sideris, D, Tapper, Ad, Walker, R, Mallik, U, Wang, Sm, Cloth, P, Filges, D, Ishii, T, Kuze, M, Suzuki, I, Tokushuku, K, Yamada, S, Yamauchi, K, Yamazaki, Y, Ahn, Sh, An, Sh, Hong, Sj, Lee, Sb, Nam, Sw, Park, Sk, Lim, H, Park, Ih, Son, D, Barreiro, F, Fernandez, Jp, Garcia, G, Glasman, C, Hernandez, Jm, Labarga, L, DEL PESO, J, Puga, J, Redondo, I, Terron, J, Corriveau, F, Hanna, Ds, Hartmann, J, Murray, Wn, Ochs, A, Padhi, S, Riveline, M, Stairs, Dg, ST LAURENT, M, Wing, M, Tsurugai, T, Bashkirov, V, Dolgoshein, Ba, Bashindzhagyan, Gl, Ermolov, Pf, Golubkov, Ya, Khein, La, Korotkova, Na, Korzhavina, Ia, Kuzmin, Va, Lukina, Oy, Proskuryakov, As, Shcheglova, Lm, Solomin, An, Zotkin, Sa, Bokel, C, Botje, M, Brummer, N, Engelen, J, Koffeman, E, Kooijman, P, VAN SIGHEM, A, Tiecke, W, Tuning, N, Velthuis, Jj, Verkerke, W, Vossebeld, J, Wiggers, L, DE WOLF, E, Acosta, D, Bylsma, B, Durkin, Ls, Gilmore, J, Ginsburg, Cm, Kim, Cl, Ling, Ty, Nylander, P, Blaikley, He, Boogert, S, Cashmore, Rj, COOPER SARKAR AM, Devenish, Rce, Edmonds, Jk, GROSSE KNETTER, J, Harnew, N, Matsushita, T, Noyes, Va, Quadt, A, Ruske, O, Sutton, Mr, Walczak, R, Waters, Ds, Bertolin, A, Brugnera, Riccardo, Carlin, Roberto, DAL CORSO, F, Dondana, S, Dosselli, U, Dusini, S, Limentani, S, Morandin, M, Posocco, M, Stanco, L, Stroili, Roberto, Voci, C, Iannotti, L, Oh, By, Okrasinski, Jr, Toothacker, Ws, Whitmore, Jj, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Raso, M, Cormack, C, Hart, Jc, Mccubbin, Na, Shah, Tp, Epperson, D, Heusch, C, Sadrozinski, Hfw, Seiden, A, Wichmann, R, Williams, Dc, Pavel, N, Abramowicz, H, Dagan, S, Kananov, S, Kreisel, A, Levy, A, Schechter, A, Abe, T, Fusayasu, T, Inuzuka, M, Nagano, K, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Homma, K, Kitamura, S, Nishimura, T, Arneodo, M, Cirio, R, Costa, M, Ferrero, Mi, Maselli, S, Monaco, V, Peroni, C, Petrucci, Mc, Ruspa, M, Solano, A, Staiano, A, Dardo, M, Bailey, Dc, Fagerstroem, Cp, Galea, R, Koop, T, Levman, Gm, Martin, Jf, Orr, Rs, Polenz, S, Sabetfakhri, A, Simmons, D, Butterworth, Jm, Catterall, Cd, Hayes, Me, Heapby, Ea, Jones, Tw, Lane, Jb, Ciborowski, J, Grzelak, G, Nowak, Rj, Pawlak, Jm, Pawlak, R, Smalska, B, Tymieniecka, T, Wroblewski, Ak, Zakrzewski, Ja, Zarnecki, Af, Adamus, M, Gadaj, T, Deppe, O, Eisenberg, Y, Hochman, D, Karshon, U, Badgett, Wf, Chapin, D, Cross, R, Foudas, C, Mattingly, S, Reeder, Dd, Smith, Wh, Vaiciulis, A, Wildschek, T, Wodarczyk, M, Deshpande, A, Dhawan, S, Hughes, Vw, Bhadra, S, Frisken, Wr, HALL WILTON, R, Khakzad, M, Menary, S, Schmidke, Wb, CA ZEUS COLLABORATION, and Zeus (IHEF, IoP, FNWI)
Subjects: Particle physics, MONTE-CARLO GENERATOR, E+E ANNIHILATION, Physics and Astronomy (miscellaneous), Electron–positron annihilation, Virtual particle, FOS: Physical sciences, Inelastic scattering, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, QCD JETS, HADRON SPECTRA, High Energy Physics - Experiment (hep-ex), PBARP COLLISIONS, PROTON-SCATTERING, 0103 physical sciences, EVENT GENERATOR, CHARGED-PARTICLE MULTIPLICITY, 010306 general physics, Engineering (miscellaneous), QC, Quantum chromodynamics, Physics, PP COLLISIONS, 010308 nuclear & particles physics, Angular distance, Scattering, MOMENTUM SPECTRA, ZEUS, HERA, Deep inelastic scattering, High Energy Physics::Experiment
Abstract: Correlations between charged particles in deep inelastic ep scattering have been studied in the Breit frame with the ZEUS detector at HERA using an integrated luminosity of 6.4 pb-1. Short-range correlations are analysed in terms of the angular separation between current-region particles within a cone centred around the virtual photon axis. Long-range correlations between the current and target regions have also been measured. The data support predictions for the scaling behaviour of the angular correlations at high Q2 and for anti-correlations between the current and target regions over a large range in Q2 and in the Bjorken scaling variable x. Analytic QCD calculations and Monte Carlo models correctly describe the trends of the data at high Q2, but show quantitative discrepancies. The data show differences between the correlations in deep inelastic scattering and e+e- annihilation., 26 pages including 10 figures (submitted to Eur. J. Phys. C)
Published: 2000

36. Forward jet production in deep inelastic scattering at HERA

Author: Breitweg, J, Derrick, M, Krakauer, D, Magill, S, Mikunas, D, Musgrave, B, Repond, J, Stanek, R, Talaga, RL, Yoshida, R, Zhang, H, Mattingly, MCK, Anselmo, F, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, CaraRomeo, G, Castellini, G, Cifarelli, L, Cindolo, F, Contin, A, Coppola, N, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Laurenti, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Polini, A, Sartorelli, G, Garcia, YZ, Zichichi, A, Amelung, C, Bornheim, A, Brock, I, Coboken, K, Crittenden, J, Deffner, R, Eckert, M, Grothe, M, Hartmann, H, Heinloth, K, Heinz, L, Hilger, E, Jakob, HP, Kappes, A, Katz, UF, Kerger, R, Paul, E, Pfeiffer, M, Stamm, J, Wieber, H, Bailey, DS, Campbell-Robson, S, Cottingham, WN, Foster, B, Hall-Wilton, R, Heath, GP, Heath, HF, McFall, JD, Piccioni, D, Roff, DG, Tapper, RJ, Ayad, R, Capua, M, Iannotti, L, Schioppa, M, Susinno, G, Kim, JY, Lee, JH, Lim, IT, Pac, MY, Caldwell, A, Cartiglia, N, Jing, Z, Liu, W, Mellado, B, Parsons, JA, Ritz, S, Sampson, S, Sciulli, F, Straub, PB, Zhu, Q, Borzemski, P, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Przybycien, MB, Zawiejski, L, Adamczyk, L, Bednarek, B, Bukowy, M, Czermak, AM, Jelen, K, Kisielewska, D, Kowalski, T, Przybycien, M, Rulikowska-Zarebska, E, Suszycki, L, Zajac, J, Dulinski, Z, Kotanski, A, Abbiendi, G, Bauerdick, LAT, Behrens, U, Beier, H, Bienlein, JK, Desler, K, Drews, G, Fricke, U, Gialas, I, Goebel, F, Gottlicher, P, Graciani, R, Haas, T, Hain, W, Hasell, D, Hebbel, K, Johnson, KF, Kasemann, M, Koch, W, Kotz, U, Kowalski, H, Lindemann, L, Lohr, B, Milewski, J, Milite, M, Monteiro, T, Ng, JST, Notz, D, Pellegrino, A, Pelucchi, F, Piotrzkowski, K, Rohde, M, Roldan, J, Ryan, JJ, Saull, PRB, Savin, AA, Schneckloth, U, Schwarzer, O, Selonke, F, Stonjek, S, Surrow, B, Tassi, E, Westphal, D, Wolf, G, Wollmer, U, Youngman, C, Zeuner, V, Burow, BD, Coldewey, C, Grabosch, HJ, Meyer, A, Schlenstedt, S, Barbagli, G, Gallo, E, Pelfer, P, Maccarrone, G, Votano, L, Bamberger, A, Eisenhardt, S, Markun, P, Raach, H, Trefzger, T, Wolfle, S, Bromley, JT, Brook, NH, Bussey, PJ, Doyle, AT, Lee, SW, Macdonald, N, McCance, GJ, Saxon, DH, Sinclair, LE, Skillicorn, IO, Strickland, E, Waugh, R, Bohnet, I, Gendner, N, Holm, U, Meyer-Larsen, A, Salehi, H, Wick, K, Garfagnini, A, Gladilin, LK, Horstmann, D, Kcira, D, Klanner, R, Lohrmann, E, Poelz, G, Schott, W, Zetsche, F, Bacon, TC, Butterworth, I, Cole, JE, Howell, G, Lamberti, L, Long, KR, Miller, DB, Pavel, N, Prinias, A, Sedgbeer, JK, Sideris, D, Walker, R, Mallik, U, Wang, SM, Wu, JT, Cloth, P, Filges, D, Fleck, JI, Ishii, T, Kuze, M, Suzuki, I, Tokushuku, K, Yamada, S, Yamauchi, K, Yamazaki, Y, Hong, SJ, Lee, SB, Nam, SW, Park, SK, Lim, H, Park, IH, Son, D, Barreiro, F, Fernandez, JP, Garcia, G, Glasman, C, Hernandez, JM, Hervas, L, Labarga, L, Martinez, M, del Peso, J, Puga, J, Terron, J, de Troconiz, JF, Corriveau, F, Hanna, DS, Hartmann, J, Hung, LW, Murray, WN, Ochs, A, Riveline, M, Stairs, DG, St-Laurent, M, Ullmann, R, Tsurugai, T, Bashkirov, V, Dolgoshein, BA, Stifutkin, A, Bashindzhagyan, GL, Ermolov, PF, Golubkov, YA, Khein, LA, Korotkova, NA, Korzhavina, IA, Kuzmin, VA, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Solomin, AN, Zotkin, SA, Bokel, C, Botje, M, Brummer, N, Engelen, J, Koffeman, E, Kooijman, P, van Sighem, A, Tiecke, H, Tuning, N, Verkerke, W, Vossebeld, J, Wiggers, L, de Wolf, E, Acosta, D, Bylsma, B, Durkin, LS, Gilmore, J, Ginsburg, CM, Kim, CL, Ling, TY, Nylander, P, Romanowski, TA, Blaikley, HE, Cashmore, RJ, Cooper-Sarkar, AM, Devenish, RCE, Edmonds, JK, Grosse-Knetter, J, Harnew, N, Nath, C, Noyes, VA, Quadt, A, Ruske, O, Tickner, JR, Walczak, R, Waters, DS, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, F, Dosselli, U, Limentani, S, Morandin, M, Posocco, M, Stanco, L, Stroili, R, Voci, C, Bulmahn, J, Oh, BY, Okrasinski, JR, Toothacker, WS, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Raso, M, Hart, JC, McCubbin, NA, Shah, TP, Epperson, D, Heusch, C, Rahn, JT, Sadrozinski, HFW, Seiden, A, Wichmann, R, Williams, DC, Abramowicz, H, Briskin, G, Dagan, S, Kananov, S, Levy, A, Abe, T, Fusayasu, T, Inuzuka, M, Nagano, K, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Homma, K, Kitamura, S, Matsushita, T, Arneodo, M, Cirio, R, Costa, M, Ferrero, MI, Maselli, S, Monaco, V, Peroni, C, Petrucci, MC, Ruspa, M, Sacchi, R, Solano, A, Staiano, A, Dardo, M, Bailey, DC, Fagerstroem, CP, Galea, R, Hartner, GF, Joo, KK, Levman, GM, Martin, JF, Orr, RS, Polenz, S, Sabetfakhri, A, Simmons, D, Teuscher, RJ, Butterworth, JM, Catterall, CD, Hayes, ME, Jones, TW, Lane, JB, Saunders, RL, Sutton, MR, Wing, M, Ciborowski, J, Grzelak, G, Kasprzak, M, Nowak, RJ, Pawlak, JM, Pawlak, R, Smalska, B, Tymieniecka, T, Wroblewski, AK, Zakrzewski, JA, Zarnecki, AF, Adamus, M, Deppe, O, Eisenberg, Y, Hochman, D, Karshon, U, Badgett, WF, Chapin, D, Cross, R, Dasu, S, Foudas, C, Loveless, RJ, Mattingly, S, Reeder, DD, Smith, WH, Vaiciulis, A, Wodarczyk, M, Deshpande, A, Dhawan, S, Hughes, VW, Bhadra, S, Frisken, WR, Khakzad, M, Schmidke, WB, Collaboration, ZEUS, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and H1 Collaboration
Subjects: Particle physics, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Inelastic scattering, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, ENERGY, High Energy Physics - Experiment (hep-ex), QCD COHERENCE, 0103 physical sciences, EVENT GENERATOR, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, Rapidity, 010306 general physics, Parton shower, Nuclear Experiment, Engineering (miscellaneous), LOW-X REGIME, Event generator, Quantum chromodynamics, Physics, Jet (fluid), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, MOMENTUM SPECTRA, ZEUS, ZEUS BARREL CALORIMETER, HERA, TO-LEADING ORDER, PARTON DISTRIBUTIONS, EP SCATTERING, Deep inelastic scattering, High Energy Physics::Experiment
Abstract: The production of forward jets has been measured in deep inelastic ep collisions at HERA. The results are presented in terms of single differential cross sections as a function of the Bjorken scaling variable (x_{Bj}) and as triple differential cross sections d^3 \sigma / dx_{Bj} dQ^2 dp_{t,jet}^2, where Q^2 is the four momentum transfer squared and p_{t,jet}^2 is the squared transverse momentum of the forward jet. Also cross sections for events with a di-jet system in addition to the forward jet are measured as a function of the rapidity separation between the forward jet and the two additional jets. The measurements are compared with next-to-leading order QCD calculations and with the predictions of various QCD-based models., Comment: 27 pages, 10 figures, 4 tables
Published: 1999

37. Measurement of the diffractive cross section in deep inelastic scattering using ZEUS 1994 data

Author: Breitweg, J, Derrick, M, Krakauer, D, Magill, S, Mikunas, D, Musgrave, B, Repond, J, Stanek, R, Talaga, RL, Yoshida, R, Zhang, H, Mattingly, MCK, Anselmo, F, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, GC, Castellini, G, Cifarelli, L, Cindolo, F, Contin, A, Coppola, N, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Laurenti, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Polini, A, Sartorelli, G, Garcia, YZ, Zichichi, A, Amelung, C, Bornheim, A, Brock, I, Coboken, K, Crittenden, J, Deffner, R, Eckert, M, Grothe, M, Hartmann, H, Heinloth, K, Heinz, L, Hilger, E, Jakob, HP, Kappes, A, Katz, UF, Kerger, R, Paul, E, Pfeiffer, M, Schnurbusch, H, Wieber, H, Bailey, DS, Campbell-Robson, S, Cottingham, WN, Foster, B, Hall-Wilton, N, Heath, GP, Heath, HF, McFall, JD, Piccioni, D, Roff, DG, Tapper, RJ, Capua, M, Iannotti, L, Mastroberardino, A, Schioppa, M, Susinno, G, Kim, JY, Lee, JH, Lim, IT, Pac, MY, Caldwell, A, Cartiglia, N, Jing, Z, Liu, W, Mellado, B, Parsons, JA, Ritz, S, Sampson, S, Sciulli, F, Straub, PB, Zhu, Q, Borzemski, P, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Przybycien, MB, Zawiejski, L, Adamczyk, L, Bednarek, B, Bukowy, M, Czermak, AM, Jelen, K, Kisielewska, D, Kowalski, T, Przybycien, M, Rulikowska-Zarebska, E, Suszycki, L, Zajac, J, Dulinski, Z, Kotanski, A, Abbiendi, G, Bauerdick, LAT, Behrens, U, Beier, H, Bienlein, JK, Desler, K, Drews, G, Fricke, U, Gialas, I, Goebel, F, Gottlicher, P, Graciani, R, Haas, T, Hain, W, Hartner, GF, Hasell, D, Hebbel, K, Johnson, KF, Kasemann, M, Koch, W, Kotz, U, Kowalski, H, Lindemann, L, Lohr, B, Martinez, M, Milewski, J, Milite, M, Monteiro, T, Notz, D, Pellegrino, A, Pelucchi, F, Piotrzkowski, K, Rohde, M, Roldan, J, Ryan, JJ, Saull, PRB, Savin, AA, Schneekloth, U, Schwarzer, O, Selonke, F, Stonjek, S, Surrow, B, Tassi, E, Westphal, D, Wolf, G, Wollmer, U, Youngman, C, Zeuner, W, Burow, BD, Coldewey, C, Grabosch, HJ, Meyer, A, Schlenstedt, R, Barbagli, G, Gallo, E, Pelfer, P, Maccarrone, G, Votano, L, Bamberger, A, Eisenhardt, S, Markun, P, Raach, H, Trefzger, T, Wolfle, S, Bromley, JT, Brook, NH, Bussey, PJ, Doyle, AT, Lee, SW, Macdonald, N, McCance, GJ, Saxon, DH, Sinclair, LE, Skillicorn, IO, Strickland, E, Waugh, R, Bohnet, I, Gendner, N, Holm, U, Meyer-Larsen, A, Salehi, P, Wick, K, Garfagnini, A, Gladilin, LK, Kcira, D, Klanner, R, Lohrmann, E, Poelz, G, Zetsche, F, Bacon, TC, Butterworth, I, Cole, JE, Howell, G, Lamberti, L, Long, KR, Miller, DB, Pavel, N, Prinias, A, Sedgbeer, JK, Sideris, D, Walker, R, Mallik, U, Wang, SM, Wu, JT, Cloth, P, Filges, D, Fleck, JI, Ishii, T, Kuze, M, Suzuki, I, Tokushuku, K, Yamada, S, Yamauchi, K, Yamazaki, Y, Hong, SJ, Lee, SB, Nam, SW, Park, SK, Lim, H, Park, IH, Son, D, Barreiro, F, Fernandez, JP, Garcia, G, Glasman, C, Hernandez, JM, Hervas, L, Labarga, L, del Peso, J, Puga, J, Terron, J, de Troconiz, JF, Corriveau, F, Hanna, DS, Hartmann, J, Murray, WN, Ochs, A, Riveline, M, Stairs, DG, St-Laurent, M, Tsurugai, T, Bashkirov, V, Dolgoshein, BA, Stifutkin, A, Bashindzhagyan, GL, Ermolov, PF, Golubkov, YA, Khein, LA, Korotkova, NA, Korzhavina, IA, Kuzmin, VA, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Solomin, AN, Zotkin, SA, Bokel, C, Botje, M, Brummer, N, Engelen, J, Koffeman, E, Kooijman, P, van Sighem, A, Tiecke, H, Tuning, N, Verkerke, W, Vossebeld, J, Wiggers, L, de Wolf, E, Acosta, D, Bylsma, B, Durkin, LS, Gilmore, J, Ginsburg, CM, Kim, CL, Ling, TY, Nylander, P, Romanowski, TA, Blaikley, HE, Cashmore, RJ, Cooper-Sarkar, AM, Devenish, RCE, Edmonds, JK, Grosse-Knetter, J, Harnew, N, Nath, C, Noyes, VA, Quadt, A, Ruske, O, Tickner, JR, Walczak, R, Waters, DS, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, F, Dosselli, U, Limentani, S, Morandin, M, Posocco, M, Stanco, L, Stroili, R, Voci, C, Oh, BY, Okrasinski, JR, Toothacker, WS, Whitmore, JJ, Iga, Y, D'Agostini, GD, Marini, G, Nigro, A, Raso, M, Hart, JC, McCubbin, NA, Shah, TP, Epperson, D, Heusch, C, Rahn, JT, Sadrozinski, HFW, Seiden, A, Wichmann, R, Williams, DC, Abramowicz, H, Briskin, G, Dagan, S, Kananov, S, Levy, A, Abe, T, Fusayasu, T, Inuzuka, M, Nagano, E, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Homma, K, Kitamura, S, Matsushita, T, Nishimura, T, Arneodo, M, Cirio, R, Costa, M, Ferrero, MI, Maselli, S, Monaco, V, Peroni, C, Petrucci, MC, Ruspa, M, Sacchi, R, Solano, A, Staiano, A, Dardo, M, Bailey, DC, Fagerstroem, CP, Galea, R, Joe, KK, Levman, GM, Martin, JF, Orr, RS, Polenz, S, Sabetfakhri, A, Simmons, D, Butterworth, JM, Catterall, CD, Hayes, ME, Heaphy, EA, Jones, TW, Lane, JB, Saunders, RL, Sutton, MR, Wing, M, Ciborowski, J, Grzelak, G, Nowak, RJ, Pawlak, JM, Pawlak, R, Smalska, B, Tymieniecka, T, Wroblewski, AK, Zakrzewski, JA, Zarnecki, AF, Adamus, M, Deppe, O, Eisenberg, Y, Hochman, D, Karshon, U, Badgett, WF, Chapin, D, Cross, R, Dasu, S, Foudas, C, Loveless, RJ, Mattingly, S, Reeder, DD, Smith, WH, Vaiciulis, A, Wodarczyk, M, Deshpande, A, Dhawan, S, Hughes, VW, Bhadra, S, Frisken, WR, Khakzad, M, Schmidke, WB, and Collaboration, ZEUS
Subjects: MONTE-CARLO GENERATOR, STRUCTURE-FUNCTION F-2(X, EP SCATTERING, Q(2)), LOW-X, HERA, ZEUS, LARGE RAPIDITY GAP, CENTRAL TRACKING DETECTOR, POMERON STRUCTURE, HARD DIFFRACTION, LOW-X, HERA, DISSOCIATION
Abstract: The DIS diffractive cross section, dσdiffγ*p→XN/dMx, has been measured in the mass range Mx < 15 GeV for γ*p c.m. energies 60 < W < 200 GeV and photon virtualities Q2 = 7 to 140 GeV2. For fixed Q2 and Mx, the diffractive cross section rises rapidly with W, dσdiffγ*p→X N (Mx, W, Q2)/dMx ∝ Wadiff with adiff = 0.507 ± 0.034 (stat) +0.155-0.046 (syst) corresponding to a t-averaged pomeron trajectory of ̄αℙ = 1.127 ± 0.009 (stat) +0.039-0.012 (syst) which is larger than ̄αℙ observed in hadron-hadron scattering. The W dependence of the diffractive cross section is found to be the same as that of the total cross section for scattering of virtual photons on protons. The data are consistent with the assumption that the diffractive structure function FD(3)2 factorizes according to cursive greek chiℙFD(3)2(cursive greek chiℙ, β, Q2) = (cursive greek chi0//cursive greek chiℙ)nFD(2)2(β, Q2). They are also consistent with QCD based models which incorporate factorization breaking. The rise of cursive greek chiℙFD(3)2 with decreasing cursive greek chiℙ and the weak dependence of FD(2)2 on Q2 suggest a substantial contribution from partonic interactions.
Published: 1999

38. Search for selectron and squark production in e(+)p collisions at HERA

Author: Breitweg, J., Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R. L., Yoshida, R., Zhang, H., Mattingly, M. C. K., Anselmo, F., Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Cara Romeo, G., Castellini, G., Cifarelli, L., Cindolo, F., Contin, A., Coppola, N., Corradi, M., Pasquale, S., Giusti, P., Iacobucci, G., Laurenti, G., Giuseppe Levi, Margotti, A., Massam, T., Nania, R., Palmonari, F., Pesci, A., Polini, A., Sartorelli, G., Zamora Garcia, Y., Zichichi, A., Amelung, C., Bornheim, A., Brock, I., Coböken, K., Crittenden, J., Deffner, R., Eckert, M., Grothe, M., Hartmann, H., Heinloth, K., Heinz, L., Hilger, E., Jakob, H. -P, Kappes, A., Katz, U. F., Kerger, R., Paul, E., Pfeiffer, M., Stamm, J., Wieber, H., Bailey, D. S., Campbell-Robson, S., Cottingham, W. N., Foster, B., Hall-Wilton, R., Heath, G. P., Heath, H. F., Mcfall, J. D., Piccioni, D., Roff, D. G., Tapper, R. J., Capua, M., Iannotti, L., Schioppa, M., Susinno, G., Kim, J. Y., Lee, J. H., Lim, I. T., Pac, M. Y., Caldwell, A., Cartiglia, N., Jing, Z., Liu, W., Mellado, B., Parsons, J. A., Ritz, S., Sampson, S., Sciulli, F., Straub, P. B., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Figiel, J., Klimek, K., Przybycień, M. B., Zawiejski, L., Adamczyk, L., Bednarek, B., Bukowy, M., Czermak, A. M., Jeleń, K., Kisielewska, D., Kowalski, T., Przybycień, M., Rulikowska-Zarebska, E., Suszycki, L., Zajac, J., Duliński, Z., Kotański, A., Abbiendi, G., Bauerdick, L. A. T., Behrens, U., Beier, H., Bienlein, J. K., Desler, K., Drews, G., Fricke, U., Gialas, I., Goebel, F., Göttlicher, P., Graciani, R., Haas, T., Hain, W., Hartner, G. F., Hasell, D., Hebbel, K., Johnson, K. F., Kasemann, M., Koch, W., Kötz, U., Kowalski, H., Lindemann, L., Löhr, B., Martínez, M., Miiewski, J., Milite, M., Monteiro, T., Notz, D., Pellegrino, A., Pelucchi, F., Piotrzkowski, K., Rohde, M., Roldán, J., Ryan, J. J., Saull, P. R. B., Savin, A. A., Schneekloth, U., Schwarzer, O., Selonke, F., Stonjek, S., Surrow, B., Tassi, E., Westphal, D., Wolf, G., Wollmer, U., Youngman, C., Zeuner, W., Burow, B. D., Coldewey, C., Grabosch, H. J., Meyer, A., Schlenstedt, S., Barbagli, G., Gallo, E., Pelfer, P., Maccarrone, G., Votano, L., Bamberger, A., Eisenhardt, S., Markun, P., Raach, H., Trefzger, T., Wölfle, S., Bromley, J. T., Brook, N. H., Bussey, P. J., Doyle, A. T., Lee, S. W., Macdonald, N., Mccance, G. J., Saxon, D. H., Sinclair, L. E., Skillicorn, I. O., Strickland, E., Waugh, R., Bohnet, I., Gendner, N., Holm, U., Meyer-Larsen, A., Salehi, H., Wick, K., Garfagnini, A., Gladilin, L. K., Kçira, D., Klanner, R., Lohrmann, E., Poelz, G., Zetsche, F., Bacon, T. C., Butterworth, I., Cole, J. E., Howell, G., Lamberti, L., Long, K. R., Miller, D. B., Pavel, N., Prinias, A., Sedgbeer, J. K., Sideris, D., Walker, R., Mallik, U., Wang, S. M., Wu, J. T., Cloth, P., Filges, D., Fleck, J. I., Ishii, T., Kuze, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamauchi, K., Yamazaki, Y., Hong, S. J., Lee, S. B., Nam, S. W., Park, S. K., Lim, H., Park, I. H., Son, D., Barreiro, F., Fernández, J. P., García, G., Glassnan, C., Hernández, J. M., Hervás, L., Labarga, L., Del Peso, J., Puga, J., Terron, J., Trocóniz, J. F., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Murray, W. N., Ochs, A., Riveline, M., Stairs, D. G., St-Laurent, M., Ullmann, R., Tsurugai, T., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Golubkov, Y. A., Khein, L. A., Korotkova, N. A., Korzhavina, I. A., Kuzmin, V. A., Lukina, O. Y., Proskuryakov, A. S., Shcheglova, L. M., Solomin, A. N., Zotkin, S. A., Bokel, C., Botje, M., Brümmer, N., Engelen, J., Koffeman, E., Kooijman, P., Sighem, A., Tiecke, H., Tuning, N., Verkerke, W., Vossebeld, J., Wiggers, L., Wolf, E., Acosta, D., Bylsma, B., Durkin, L. S., Gilmore, J., Ginsburg, C. M., Kim, C. L., Ling, T. Y., Nylander, P., Romanowski, T. A., Blaikley, H. E., Cashmore, R. J., Cooper-Sarkar, A. M., Devenish, R. C. E., Edmonds, J. K., Groóße-Knetter, J., Harnew, N., Nath, C., Noyes, V. A., Quadt, A., Ruske, O., Tickner, J. R., Walczak, R., Waters, D. S., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Oh, B. Y., Okrasiński, J. R., Toothacker, W. S., Whitmore, J. J., Iga, Y., D Agostini, G., Marini, G., Nigro, A., Raso, M., Hart, J. C., Mccubbin, N. A., Shah, T. P., Epperson, D., Heusch, C., Rahn, J. T., Sadrozinski, H. F. -W, Seiden, A., Wichmann, R., Williams, D. C., Abramowicz, H., Briskin, G., Dagan, S., Kananov, S., Levy, A., Abe, T., Fusayasu, T., Inuzuka, M., Nagano, K., Umemori, K., Yamashita, T., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Matsushita, T., Arneodo, M., Cirio, R., Costa, M., Ferrero, M. I., Maselli, S., Monaco, V., Peroni, C., Petrucci, M. C., Ruspa, M., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Fagerstroem, C. -P, Galea, R., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Polenz, S., Sabetfakhri, A., Simmons, D., Butterworth, J. M., Catterall, C. D., Hayes, M. E., Jones, T. W., Lane, J. B., Saunders, R. L., Sutton, M. R., Wing, M., Ciborowski, J., Grzelak, G., Kasprzak, M., Nowak, R. J., Pawlak, J. M., Pawlak, R., Smalska, B., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Zarnecki, A. F., Adamus, M., Deppe, O., Eisenberg, Y., Hochman, D., Karshon, U., Badgett, W. F., Chapin, D., Cross, R., Dasu, S., Foudas, C., Loveless, R. J., Mattingly, S., Reeder, D. D., Smith, W. H., Vaiciulis, A., Wodarczyk, M., Deshpande, A., Dhawan, S., Hughes, V. W., Bhadra, S., Frisken, W. R., Khakzad, M., and Schmidke, W. B.
Subjects: Nuclear and High Energy Physics, Stop squark, Particle physics, MONTE-CARLO GENERATOR, FOS: Physical sciences, ENERGY EP COLLISIONS, 01 natural sciences, JET FRAGMENTATION, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), E(+)E(-) COLLISIONS, EVENT GENERATOR, 0103 physical sciences, SUPERGRAVITY, 010306 general physics, SUPERSYMMETRY, Physics, E+E-PHYSICS, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, ZEUS, PARTON DISTRIBUTIONS, MODEL, Superpartner, HERA, Supersymmetry, Selectron tube, Neutralino, High Energy Physics::Experiment, Minimal Supersymmetric Standard Model
Abstract: We have searched for the production of a selectron and a squark in $e^+p$ collisions at a center-of-mass energy of 300 GeV using the ZEUS detector at HERA. The selectron and squark are sought in the direct decay into the lightest neutralino in the framework of supersymmetric extensions to the Standard Model which conserve R-parity. No evidence for the production of supersymmetric particles has been found in a data sample corresponding to 46.6~pb$^{-1}$ of integrated luminosity. We express upper limits on the product of the cross section times the decay branching ratios as excluded regions in the parameter space of the Minimal Supersymmetric Standard Model., 22 pages including 4 figures
Published: 1998

39. Leading Proton Production in Deep Inelastic Scattering at HERA

Author: Chekanov, S, Derrick, M, Magill, S, Musgrave, B, Nicholass, D, Repond, J, Yoshida, R, Mattingly, MCK, Antonioli, P, Bari, G, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Cara Romeo, G, Cindolo, F, Corradi, M, Giusti, P, Iacobucci, G, Margotti, A, Massam, T, Nania, R, Polini, A, Antonelli, S, Basile, M, Bindi, M, Cifarelli, L, Contin, A, Palmonari, F, De Pasquale, S, Sartorelli, G, Zichichi, A, Bartsch, D, Brock, I, Hartmann, H, Hilger, E, Jakob, H-P, Jüngst, M, Nuncio-Quiroz, AE, Paul, E, Samson, U, Schönberg, V, Shehzadi, R, Wlasenko, M, Brook, NH, Heath, GP, Morris, JD, Kaur, M, Kaur, P, Singh, I, Capua, M, Fazio, S, Ianotti, L, Mastroberardino, A, Schioppa, M, Susinno, G, Tassi, E, Kim, JY, Ibrahim, ZA, Mohamad Idris, F, Kamaluddin, B, Wan Abdullah, WAT, Ning, Y, Ren, Z, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Galas, A, Olkiewicz, K, Pawlik, B, Stopa, P, Zawiejski, L, Adamczyk, L, Bołd, T, Grabowska-Bołd, I, Kisielewska, D, Lukasik, J, Przybycień, M, Suszycki, L, Kotański, A, Slomiński, W, Behnke, O, Behrens, U, Blohm, C, Bonato, A, Borras, K, Bot, D, Ciesielski, R, Coppola, N, Fang, S, Fourletova, J, Geiser, A, Göttlicher, P, Grebenyuk, J, Gregor, I, Haas, T, Hain, W, Hüttmann, A, Januschek, F, Kahle, B, Katkov, II, Klein, U, Kötz, U, Kowalski, H, Lisovyi, M, Lobodzinska, E, Löhr, B, Mankel, R, Melzer-Pellmann, I-A, Miglioranzi, S, Monta-Nari, A, Namsoo, T, Notz, D, Parenti, A, Rinaldi, L, Roloff, P, Rubinsky, I, Schneekloth, U, Spiridonov, A, Szuba, D, Szuba, J, Theedt, T, Ukleja, J, Wolf, G, Wrona, K, Yagües Molina, AG, Youngman, C, Zeuner, W, Drugakov, V, Lohmann, W, Schlenstedt, S, Barbagli, G, Gallo, E, Pelfer, PG, Bamberger, A, Dobur, D, Karstens, F, Vlasov, NN, Bussey, PJ, Doyle, AT, Dunne, W, Forrest, M, Rosin, M, Saxon, DH, Skillicorn, IO, Gialas, I, Papageorgiu, K, Holm, U, Klanner, R, Lohrmann, E, Perrey, H, Schleper, P, Schörner-Sadenius, T, Sztuk, J, Stadie, H, Turcato, M, Foudas, C, Fry, C, Long, KR, Tapper, AD, Matsumoto, T, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, AN, Boos, EG, Pokrovskiy, NS, Zhautykov, BO, Aushev, V, Bachynska, O, Borodin, M, Kadenko, I, Kozulia, A, Libov, V, Lontkovskyi, D, Makarenko, I, Sorokin, I, Verbytskyi, A, Volynets, O, Son, D, De Favereau, J, Piotrzkowski, K, Barreiro, F, Glasman, C, Jimenez, M, Labarga, L, Del Peso, J, Ron, E, Soares, M, Terrón, J, Uribe-Estrada, C, Zambrana, M, Corriveau, F, Liu, C, Schwartz, J, Walsh, R, Zhou, C, Tsurugai, T, Antonov, A, Dolgoshein, BA, Gladkov, D, Sosnovtsev, V, Stifutkin, A, Suchkov, S, Dementiev, RK, Ermolov, PF, Gladilin, LK, Golubkov, YA, Khein, LA, Korzhavina, IA, Kuzmin, VA, Levchenko, BB, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Zotkin, DS, Abt, I, Caldwell, A, Kollar, D, Reisert, B, Schmidke, WB, Grigorescu, G, Keramidas, A, Koffeman, E, Kooijman, P, Pellegrino, A, Tiecke, H, Vázquez, M, Wiggers, L, Brümmer, N, Bylsma, B, Durkin, LS, Lee, A, Ling, TY, Allfrey, PD, Bell, MA, Cooper-Sarkar, AM, Devenish, RCE, Ferrando, J, Foster, B, Gwenlan, C, Horton, K, Oliver, K, Robertson, A, Walczak, R, Bertolin, A, Dal Corso, F, Dusini, S, Longhin, A, Stanco, L, Bellan, P, Brugnera, R, Carlin, R, Garfagnini, A, Limentani, S, Oh, BY, Raval, A, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cole, JE, Hart, JC, Epperson, D, Heusch, C, Sadrozinski, H, Seiden, A, Wichmann, R, Williams, DC, Abramowicz, H, Ingbir, R, Kananov, S, Levy, A, Stern, A, Kuze, M, Maeda, J, Hori, R, Kagawa, S, Okazaki, N, Shimizu, S, Tawara, T, Hamatsu, R, Kaji, H, Kitamura, S, Ota, O, Ri, YD, Cirio, R, Costa, M, Ferrero, MI, Monaco, V, Peroni, C, Petrucci, MC, Sacchi, R, Sola, V, Solano, A, Cartiglia, N, Maselli, S, Staiano, A, Arneodo, M, Ruspa, M, Fourletov, S, Martin, JF, Stewart, TP, Boutle, SK, Butterworth, JM, Jones, TW, Loizides, JH, Wing, M, Brzozowska, B, Ciborowski, J, Grzelak, G, Kulinski, P, Luzniak, P, Malka, J, Nowak, RJ, Pawlak, JM, Perlanski, W, Tymieniecka, T, Zarnecki, AF, Adamus, M, Plucinski, P, Ukleja, A, Eisenberg, Y, Hochman, D, Karshon, U, Brownson, E, Reeder, DD, Savin, AA, Smith, WH, Wolfe, H, Bhadra, S, Catterall, CD, Cui, Y, Hartner, G, Menary, S, Noor, U, Standage, J, Whyte, J, S. CHEKANOV, M. DERRICK, S. MAGILL, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, P. ANTONIOLI, G. BARI, L. BELLAGAMBA, D. BOSCHERINI, A. BRUNI, G. BRUNI, F. CINDOLO, M. CORRADI, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, S. ANTONELLI, M. BASILE, M. BINDI, L. CIFARELLI, A. CONTIN, S. DE PASQUALE, G. SARTORELLI, A. ZICHICHI, D. BARTSCH, I. BROCK, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JÜNGST, A.E. NUNCIO-QUIROZ, E. PAUL, U. SAMSON, V. SCHÖNBERG, R. SHEHZADI, M. WLASENKO, N.H. BROOK, G.P. HEATH, J.D. MORRIS, M. KAUR, P. KAUR, I. SINGH, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, Z.A. IBRAHIM, F. MOHAMAD IDRIS, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, K. OLKIEWICZ, B. PAWLIK, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, O. BEHNKE, U. BEHRENS, I. BLOCH, C. BLOHM, A. BONATO, K. BORRAS, D. BOT, R. CIESIELSKI, N. COPPOLA, S. FANG, J. FOURLETOVA, A. GEISER, P. GÖTTLICHER, J. GREBENYUK, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, A. HÜTTMANN, J. JANUSCHEK, B. KAHLE, I.I. KATKOV, U. KLEIN, U. KÖTZ, H. KOWALSKI, M. LISOVYI, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I.-A. MELZER-PELLMANN, S. MIGLIORANZI, A. MONTANARI, T. NAMSOO, D. NOTZ, A. PARENTI, L. RINALDI, P. ROLOFF, I. RUBINSKY, U. SCHNEEKLOTH, A. SPIRIDONOV, D. SZUBA, J. SZUBA, T. THEEDT, J. UKLEJA, G. WOLF, K. WRONA, A.G. YAGUES MOLINA, C. YOUNGMAN, W. ZEUNER, V. DRUGAKOV, W. LOHMANN, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, W. DUNNE, M. FORREST, M. ROSIN, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, K. PAPAGEORGIU, U. HOLM, R. KLANNER, E. LOHRMANN, H. PERREY, P. SCHLEPER, T. SCHÖRNER-SADENIUS, J. SZTUK, H.STADIE, M. TURCATO, C. FOUDAS, C. FRY, K.R. LONG, A.D. TAPPER, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, N.S. POKROVSKIY, B.O. ZHAUTYKOV, V. AUSHEV, O. BACHYNSKA, M. BORODIN, I. KADENKO, A. KOZULIA, V. LIBOV, D. LONTKOVSKYI, I. MAKARENKO, IU. SOROKIN, A. VERBYTSKYI, O. VOLYNETS, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, M. SOARES, J. TERRÓN, C. URIBE-ESTRADA, F. CORRIVEAU, C. LIU, J. SCHWARTZ, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, D. GLADKOV, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F.ERMOLOV, L.K. GLADILIN, YU.A. GOLUBKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A.KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, I. ABT, A. CALDWELL, D. KOLLAR, B. REISERT, W.B. SCHMIDKE, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, P.D. ALLFREY, M.A. BELL, A.M. COOPER-SARKAR, R.C.E. DEVENISH, J. FERRANDO, B.FOSTER, C. GWENLAN, K. HORTON, K. OLIVER, A. ROBERTSON, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, B.Y. OH, A. RAVAL, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.E. COLE, J.C. HART, H. ABRAMOWICZ, R. INGBIR, S. KANANOV, A. LEVY, A. STERN, M. KUZE, J. MAEDA, R. HORI, S. KAGAWA, N. OKAZAKI, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.COSTA, M.I. FERRERO, V. MONACO, R. SACCHI, V. SOLA, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, T.P. STEWART, S.K. BOUTLE, J.M. BUTTERWORTH, R. HALL-WILTON, T.W. JONES, J.H. LOIZIDES, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J.NOWAK, J.M. PAWLAK, W. PERLANSKI, T. TYMIENIECKA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, A. UKLEJA, Y. EISENBERG, D. HOCHMAN, U. KARSHON, E. BROWNSON, D.D. REEDER, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, J. STANDAGE, J. WHYTE., and Precision Frontier
Subjects: Nuclear and High Energy Physics, Particle physics, Photon, MONTE-CARLO GENERATOR, Proton, HERA, FOS: Physical sciences, 01 natural sciences, 7. Clean energy, NEUTRON-CALORIMETER, High Energy Physics - Experiment, CROSS-SECTIONS, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, LEPTON-NUCLEON SCATTERING, 0103 physical sciences, ddc:530, 010306 general physics, Nuclear Experiment, HIGH-ENERGIES, Physics, Range (particle radiation), ZEUS (particle detector), Luminosity (scattering theory), Spectrometer, 010308 nuclear & particles physics, ZEUS BARREL CALORIMETER, Deep inelastic scattering, PHYSICS EVENT GENERATION, CENTRAL TRACKING DETECTOR, FRACTURE FUNCTIONS, DIFFRACTIVE SCATTERING, High Energy Physics::Experiment
Abstract: The semi-inclusive reaction e(+)p -> e(+) Xp was studied with the ZEUS detector at HERA with an integrated luminosity of 12.8 pb(-1). The final-state proton, which was detected with the ZEUS leading proton spectrometer, carried a large fraction of the incoming proton energy, x(L) > 0.32, and its transverse momentum squared satisfied p(T)(2)
Published: 2009

40. Energy dependence of the charged multiplicity in deep inelastic scattering at HERA

Author: Chekanov, S., Derrick, M., Magill, S., Musgrave, B., Nicholass, D., Repond, J., Yoshida, R., Mattingly, M. C. K., Jechow, M., Pavel, N., Antonioli, P., Bari, G., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Cindolo, F., Corradi, M., Iacobucci, G., Margotti, A., Nania, R., Polini, A., Antonelli, S., Basile, M., Bindi, M., Cifarelli, L., Contin, A., Pasquale, S., Sartorelli, G., Zichichi, A., Bartsch, D., Brock, I., Hartmann, H., Hilger, E., Jakob, H. P., Jungst, M., Nuncio-Quiroz, A. E., Paul, E., Samson, U., Schoenberg, V., Shehzadi, R., Wlasenko, M., Brook, N. H., Heath, G. P., Morris, J. D., Solomin, A., Capua, M., Fazio, S., Mastroberardino, A., Schioppa, M., Susinno, G., Tassi, E., Kim, J. Y., Ibrahim, Z. A., Kamaluddin, B., Abdullah, Watw, Ning, Y., Ren, Z., Sciulli, F., Chwastowski, J., Eskreys, A., Figiel, J., Galas, A., Gil, M., Olkiewicz, K., Stopa, P., Zawiejski, L., Adamczyk, L., Bold, T., Grabowska-Bold, I., Kisielewska, D., Lukasik, J., Przybycien, M., Suszycki, L., Kotanski, A., Slominski, W., Behrens, U., Blohm, C., Bonato, A., Borras, K., Ciesielski, R., Coppola, N., Fang, S., Fourletova, J., Geiser, A., Gottlicher, P., Grebenyuk, J., Gregor, I., Haas, T., Hain, W., Huttmann, A., Januschek, F., Kahle, B., Katkov, II, Klein, U., Kotz, U., Kowalski, H., Lobodzinska, E., Lohr, B., Mankel, R., Melzer-Pellmann, I. A., Miglioranzi, S., Montanari, A., Namsoo, T., Notz, D., Parenti, A., Rinaldi, L., Roloff, P., Rubinsky, I., Santamarta, R., Schneek-Loth, U., Spiridonov, A., Szuba, D., Szuba, J., Theedt, T., Wolf, G., Wrona, K., Molina, A. G. Y., Youngman, C., Zeuner, W., Drugakov, V., Lohmann, W., Schlenstedt, S., Barbagli, G., Gallo, E., Pelfer, P. G., Bamberger, A., Dobur, D., Karstens, F., Vlasov, N. N., Bussey, P. J., Doyle, A. T., Dunne, W., Forrest, M., Rosin, M., Saxon, D. H., Skillicorn, I. O., Gialas, I., Papageorgiu, K., Holm, U., Klanner, R., Lohrmann, E., Schleper, P., Schoerner-Sadenius, T., Sztuk, J., Stadie, H., Turcato, M., Foudas, C., Fry, C., Long, K. R., Tapper, A. D., Matsumoto, T., Nagano, K., Tokushuku, K., Yamada, S., Yamazaki, Y., Barakbaev, A. N., Boos, E. G., Pokrovskiy, N. S., Zhautykov, B. O., Aushev, V., Borodin, M., Kadenko, I., Kozulia, A., Libov, V., Lisovyi, M., Lontkovskyi, D., Makarenko, I., Sorokin, I., Verbytskyi, A., Volynets, O., Son, D., Favereau, J., Piotrzkowski, K., Barreiro, F., Glasman, C., Jimenez, M., Labarga, L., Del Peso, J., Ron, E., Soares, M., Terron, J., Zambrana, M., Corriveau, F., Liu, C., Schwartz, J., Walsh, R., Zhou, C., Tsurugai, T., Antonov, A., Dolgoshein, B. A., Gladkov, D., Sosnovtsev, V., Stifutkin, A., Suchkov, S., Dementiev, R. K., Ermolov, P. F., Gladilin, L. K., Golubkov, Y. A., Khein, L. A., Korzhavina, I. A., Kuzmin, V. A., Levchenko, B. B., Lukina, O. Y., Proskuryakov, A. S., Shcheglova, L. M., Zotkin, D. S., Abt, I., Caldwell, A., Kollar, D., Reisert, B., Schmidke, W. B., Grigorescu, G., Keramidas, A., Koffeman, E., Kooijman, P., Pellegrino, A., Tiecke, H., Vazquez, M., Wiggers, L., Brummer, N., Bylsma, B., Durkin, L. S., Lee, A., Ling, T. Y., Allfrey, P. D., Bell, M. A., Cooper-Sarkar, A. M., Devenish, R. C. E., Ferrando, J., Foster, B., Korcsak-Gorzo, K., Oliver, K., Patel, S., Roberfroid, V., Robertson, A., Straub, P. B., Uribe-Estrada, C., Walczak, R., Bertolin, A., Dal Corso, F., stefano dusini, Longhin, A., Stanco, L., Bellan, P., Brugnera, R., Carlin, R., Garfagnini, A., Limentani, S., Oh, B. Y., Raval, A., Ukleja, J., Whitmore, J. J., Iga, Y., D Agostini, G., Marini, G., Nigro, A., Cole, J. E., Hart, J. C., Abramowicz, H., Ingbir, R., Kananov, S., Levy, A., Stern, A., Kuze, M., Maeda, J., Hori, R., Kagawa, S., Okazaki, N., Shimizu, S., Tawara, T., Hamatsu, R., Kaji, H., Kitamura, S., Ota, O., Ri, Y. D., Costa, M., Ferrero, M. I., Monaco, V., Sacchi, R., Solano, A., Arneodo, M., Ruspa, M., Fourletov, S., Martin, J. F., Stewart, T. P., Boutle, S. K., Butterworth, J. M., Gwenlan, C., Jones, T. W., Loizides, J. H., Wing, M., Brzozowska, B., Ciborowski, J., Grzelak, G., Kulinski, P., Luzniak, P., Malka, J., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Ukleja, A., Zarnecki, A. F., Adamus, M., Plucinski, P., Eisenberg, Y., Hochman, D., Karshon, U., Brownson, E., Danielson, T., Everett, A., Kcira, D., Reeder, D. D., Ryan, P., Savin, A. A., Smith, W. H., Wolfe, H., Bhadra, S., Catterall, C. D., Cui, Y., Hartner, G., Menary, S., Noor, U., Standage, J., Whyte, J., S. CHEKANOV, M. DERRICK, S. MAGILL, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, M. JECHOW, N. PAVEL, S. ANTONELLI, P. ANTONIOLI, G. BARI, M. BASILE, L. BELLAGAMBA, M. BINDI, D. BOSCHERINI, A. BRUNI, G. BRUNI, L. CIFARELLI, F. CINDOLO, A. CONTIN, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, G. SARTORELLI, A. ZICHICHI, D. BARTSCH, I. BROCK, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JÜNGST, A.E. NUNCIO-QUIROZ, E. PAUL, U. SAMSON, V. SCHÖNBERG, R. SHEHZADI, M. WLASENKO, N.H. BROOK, G.P. HEATH, J.D. MORRIS, A. SOLOMIN, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, Z.A. IBRAHIM, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, U. BEHRENS, C. BLOHM, A. BONATO, K. BORRAS, R. CIESIELSKI, N. COPPOLA, S. FANG, J. FOURLETOVA, A. GEISER, P. GÖTTLICHER, J. GREBENYUK, I. GREGOR, T. HAAS, W. HAIN, A. HÜTTMANN, F. JANUSCHEK, B. KAHLE, I.I. KATKOV, U. KLEIN, U. KÖTZ, H. KOWALSKI, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I.-A. MELZER-PELLMANN, S. MIGLIORANZI, A. MONTANARI, T. NAMSOO, D. NOTZ, A. PARENTI, L. RINALDI, P. ROLOFF, I. RUBINSKY, R. SANTAMARTA, U. SCHNEEKLOTH, A. SPIRIDONOV, D. SZUBA, J. SZUBA, T. THEEDT, G. WOLF, K. WRONA, A.G. YAGUES MOILINA, C. YOUNGMAN, W. ZEUNER, V. DRUGAKOV, W. LOHMANN, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, W. DUNNE, M. FORREST, M. ROSIN, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, K. PAPAGEORGIU, U. HOLM, R. KLANNER, E. LOHRMANN, P. SCHLEPER, T. SCHÖRNER-SADENIUS, J. SZTUK, H.STADIE, M. TURCATO, C. FOUDAS, C. FRY, K.R. LONG, A.D. TAPPER, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, N.S. POKROVSKIY, B.O. ZHAUTYKOV, V. AUSHEV, M. BORODIN, I. KADENKO, A. KOZULIA, V. LIBOV, M. LISOVYI, D. LONTKOVSKYI, I. MAKARENKO, IU. SOROKIN, A. VERBYTSKYI, O. VOLYNETS, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, M. SOARES, J. TERRÓN, M. ZAMBRANA, F. CORRIVEAU, C. LIU, J. SCHWARTZ, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, D. GLADKOV, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F.ERMOLOV, L.K. GLADILIN, YU.A. GOLUBKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A.KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, I. ABT, A. CALDWELL, D. KOLLAR, B. REISERT, W.B. SCHMIDKE, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, P.D. ALLFREY, M.A. BELL, A.M. COOPER-SARKAR, R.C.E. DEVENISH, J. FERRANDO, B.FOSTER, K. KORCSAK-GORZO, K. OLIVER, S. PATEL, V. ROBERFROID, A. ROBERTSON, P.B. STRAUB, C. URIBE-ESTRADA, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, B.Y. OH, A. RAVAL, J. UKLEJA, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.E. COLE, J.C. HART, H. ABRAMOWICZ, R. INGBIR, S. KANANOV, A. LEVY, A. STERN, M. KUZE, J. MAEDA, R. HORI, S. KAGAWA, N. OKAZAKI, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.COSTA, M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, T.P. STEWART, S.K. BOUTLE, J.M. BUTTERWORTH, C. GWENLAN, T.W. JONES, J.H. LOIZIDES, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J.NOWAK, J.M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, D. HOCHMAN, U. KARSHON, E. BROWNSON, T. DANIELSON, A. EVERETT, D. KÇIRA, D.D. REEDER, P. RYAN, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, J. STANDAGE, J. WHYTE., and Zeus (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, MONTE-CARLO GENERATOR, Electron–positron annihilation, 12.39.-x Phenomenological quark models, Monte Carlo method, Hadron, HERA, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), LEPTON-NUCLEON SCATTERING, 0103 physical sciences, High Energy Physics, ZEUS Collaboration, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, CHARGED-PARTICLE MULTIPLICITY, PARTON DISTRIBUTIONS, 13.66.Bc Hadron production in e-e+ interactions, ddc:530, Multiplicity (chemistry), 010306 general physics, 13.60.Hb Total and inclusive cross sections (including deep-inelastic processes), Physics, Neutral current, 010308 nuclear & particles physics, Scattering, Deep inelastic scattering, High Energy Physics::Experiment
Abstract: The charged multiplicity distributions and the mean charged multiplicity have been investigated in inclusive neutral current deep inelastic $ep$ scattering with the ZEUS detector at HERA, using an integrated luminosity of 38.6 pb$^{-1}$. The measurements were performed in the current region of the Breit frame, as well as in the current fragmentation region of the hadronic centre-of-mass frame. The KNO-scaling properties of the data were investigated and the energy dependence was studied using different energy scales. The data are compared to results obtained in $\epem$ collisions and to previous DIS measurements as well as to leading-logarithm parton-shower Monte Carlo predictions., 28 pages, 11 figures
Published: 2008

41. Deep inelastic inclusive and diffractive scattering at Q2 values from 25 to 320 GeV2 with the ZEUS forward plug calorimeter

Author: Chekanov, S, Derrick, M, Magill, S, Musgrave, B, Nicholass, D, Repond, J, Yoshida, R, Mattingly, MCK, Jechow, M, Pavel, N, Antonioli, P, Bari, G, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Cindolo, F, Corradi, A, Iacobucci, G, Margotti, A, Nania, R, Polini, A, Antonelli, S, Basile, M, Bindi, M, Cifarelli, L, Contin, A, De Pasquale, S, Sartorelli, G, Zichichi, A, Bartsch, D, Brock, I, Hartmann, H, Hilger, E, Jakob, H-P, Juengst, M, Nuncio-Quiroz, AE, Paul, E, Renner, R, Samson, U, Schoenberg, V, Shehzadi, R, Wlasenko, A, Brook, NH, Heath, GP, Morris, JD, Capua, M, Fazio, S, Mastroberardino, A, Schioppa, M, Susinno, G, Tassi, E, Kim, JY, Ibrahim, ZA, Kamaluddin, B, Abdullah, WATW, Ning, Y, Ren, Z, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Galas, A, Gil, M, Olkiewicz, K, Stopa, P, Zawiejski, L, Adamczyk, L, Bold, T, Grabowska-Bold, I, Kisielewska, D, Lukasik, J, Przybycien, M, Suszycki, L, Kotanski, A, Slominski, W, Behrens, U, Blohm, C, Bonato, A, Borras, K, Ciesielski, R, Coppola, N, Drugakov, V, Fang, S, Fourletova, J, Geiser, A, Goettlicher, P, Grebenyuk, J, Gregor, I, Haas, T, Hain, W, Huettmann, A, Kahle, B, Kasemann, M, Katkov, II, Klein, U, Koetz, U, Kowalski, H, Lim, H, Lobodzinska, E, Loehr, B, Mankel, R, Melzer-Pellmann, I-A, Miglioranzi, S, Montanari, A, Namsoo, T, Notz, D, Parenti, A, Rinaldi, L, Roloff, P, Rubinsky, I, Santamarta, R, Schneekloth, U, Spiridonov, A, Szuba, D, Szuba, J, Theedt, T, Wolf, G, Wrona, K, Molina, AGY, Youngman, C, Zeuner, W, Lohmann, W, Schlenstedt, S, Barbagli, G, Gallo, E, Pelfer, PG, Bamberger, A, Dobur, D, Karstens, F, Vlasov, NN, Bussey, PJ, Doyle, AT, Dunne, W, Forrest, M, Rosin, M, Saxon, DH, Skillicorn, IO, Gialas, I, Papageorgiu, K, Holm, U, Klanner, R, Lohrmann, E, Schleper, P, Schoerner-Sadenius, T, Sztuk, J, Stadie, H, Turcato, M, Foudas, C, Fry, C, Long, KR, Tapper, AD, Matsumoto, T, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Barakbaev, AN, Boos, EG, Pokrovskiy, NS, Zhautykov, BO, Aushev, V, Borodin, M, Kozulia, A, Lisovyi, M, Son, D, de Favereau, J, Piotrzkowski, K, Barreiro, F, Glasman, C, Jimenez, M, Labarga, L, del Peso, J, Ron, E, Soares, M, Terron, J, Zambrana, M, Corriveau, F, Liu, C, Schwartz, J, Walsh, R, Zhou, C, Tsurugai, T, Antonov, A, Dolgoshein, BA, Gladkov, D, Sosnovtsev, V, Stifutkin, A, Suchkov, S, Dementiev, RK, Ermolov, PF, Gladilin, LK, Golubkov, YA, Khein, LA, Korzhavina, IA, Kuzmin, VA, Levchenko, BB, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Zotkin, DS, Abt, I, Buettner, C, Caldwell, A, Kollar, D, Reisert, B, Schmidke, WB, Sutiak, J, Grigorescu, G, Keramidas, A, Koffeman, E, Kooijman, P, Pellegrino, A, Tiecke, H, Vazquez, M, Wiggers, L, Bruemmer, N, Bylsma, B, Durkin, LS, Lee, A, Ling, TY, Allfrey, PD, Bell, MA, Cooper-Sarkar, AM, Devenish, RCE, Ferrando, J, Foster, B, Korcsak-Gorzo, K, Oliver, K, Patel, S, Roberfroid, V, Robertson, A, Straub, PB, Uribe-Estrada, C, Walczak, R, Bertolin, A, Dal Corso, F, Dusini, S, Longhin, A, Stanco, L, Bellan, P, Brugnera, R, Carlin, R, Garfagnini, A, Limentani, S, Oh, BY, Raval, A, Ukleja, J, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cole, JE, Hart, JC, Gabareen, A, Ingbir, R, Kananov, S, Smith, O, Stern, A, Kuze, M, Maeda, J, Hori, R, Kagawa, S, Okazaki, N, Shimizu, S, Tawara, T, Hamatsu, R, Kaji, H, Kitamura, S, Ota, O, Ri, YD, Costa, M, Ferrero, MI, Monaco, V, Sacchi, R, Solano, A, Arneodo, M, Ruspa, M, Fourletov, S, Martin, JF, Stewart, TP, Boutle, SK, Butterworth, JM, Gwenlan, C, Jones, TW, Loizides, JH, Wing, M, Brzozowska, B, Ciborowski, J, Grzelak, G, Kulinski, P, Luzniak, P, Malka, J, Nowak, RJ, Pawlak, JM, Tymieniecka, T, Ukleja, A, Zarnecki, AF, Adamus, M, Plucinski, P, Eisenberg, Y, Hochman, D, Karshon, U, Brownson, E, Danielson, T, Everett, A, Kcira, D, Reeder, DD, Ryan, P, Savin, AA, Smith, WH, Wolfe, H, Bhadra, S, Catterall, CD, Cui, Y, Hartner, G, Menary, S, Noor, U, Standage, J, Whyte, J, Collaboration, ZEUS, S. CHEKANOV, M. DERRICK, S. MAGILL, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, M. JECHOW, N. PAVEL, A.G. YAGÜES MOLINA, S. ANTONELLI, P. ANTONIOLI, G. BARI, M. BASILE, L. BELLAGAMBA, M. BINDI, D. BOSCHERINI, A. BRUNI, G. BRUNI, L. CIFARELLI, F. CINDOLO, A. CONTIN, M. CORRADI, S. DE PASQUALE, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, G. SARTORELLI, A. ZICHICHI, D. BARTSCH, I. BROCK, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JÜNGST, A.E. NUNCIO-QUIROZ, E. PAUL, R. RENNER, U. SAMSON, V. SCHÖNBERG, R. SHEHZADI, M. WLASENKO, N.H. BROOK, G.P. HEATH, J.D. MORRIS, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, Z.A. IBRAHIM, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, M. GIL, K. OLKIEWICZ, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, U. BEHRENS, C. BLOHM, A. BONATO, K. BORRAS, R. CIESIELSKI, N. COPPOLA, V. DRUGAKOV, S. FANG, J. FOURLETOVA, A. GEISER, P. GÖTTLICHER, J. GREBENYUK, I. GREGOR, T. HAAS, W. HAIN, A. HÜTTMANN, B. KAHLE, M. KASEMANN, I.I. KATKOV, U. KLEIN, U. KÖTZ, H. KOWALSKI, H. LIM, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I.-A. MELZER-PELLMANN, S. MIGLIORANZI, A. MONTANARI, T. NAMSOO, D. NOTZ, A. PARENTI, L. RINALDI, P. ROLOFF, I. RUBINSKY, R. SANTAMARTA, U. SCHNEEKLOTH, A. SPIRIDONOV, D. SZUBA, J. SZUBA, T. THEEDT, G. WOLF, K. WRONA, C. YOUNGMAN, W. ZEUNER, W. LOHMANN, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, W. DUNNE, M. FORREST, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, K. PAPAGEORGIU, U. HOLM, R. KLANNER, E. LOHRMANN, P. SCHLEPER, T. SCHÖRNER-SADENIUS, J. SZTUK, H.STADIE, M. TURCATO, C. FOUDAS, C. FRY, K.R. LONG, A.D. TAPPER, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, N.S. POKROVSKIY, B.O. ZHAUTYKOV, V. AUSHEV, M. BORODIN, A. KOZULIA, M. LISOVYI, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, M. SOARES, J. TERRÓN, M. ZAMBRANA, F. CORRIVEAU, C. LIU, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, D. GLADKOV, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F.ERMOLOV, L.K. GLADILIN, YU.A. GOLUBKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A.KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, I. ABT, C. BÜTTNER, A. CALDWELL, D. KOLLAR, B. REISERT, W.B. SCHMIDKE, J. SUTIAK, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, P.D. ALLFREY, M.A. BELL, A.M. COOPER-SARKAR, R.C.E. DEVENISH, J. FERRANDO, B.FOSTER, K. KORCSAK-GORZO, K. OLIVER, S. PATEL, V. ROBERFROID, A. ROBERTSON, P.B. STRAUB, C. URIBE-ESTRADA, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, B.Y. OH, A. RAVAL, J. UKLEJA, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.E. COLE, J.C. HART, A. GABAREEN, R. INGBIR, S. KANANOV, O. SMITH, A. STERN, M. KUZE, J. MAEDA, R. HORI, S. KAGAWA, N. OKAZAKI, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.COSTA, M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, T.P. STEWART, S.K. BOUTLE, J.M. BUTTERWORTH, C. GWENLAN, T.W. JONES, J.H. LOIZIDES, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J.NOWAK, J.M. PAWLAK, T. TYMIENIECKA, A. UKLEJA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, D. HOCHMAN, U. KARSHON, E. BROWNSON, T. DANIELSON, A. EVERETT, D. KÇIRA, D.D. REEDER, P. RYAN, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, J. STANDAGE, and J. WHYTE.
Subjects: LOW X, MONTE-CARLO GENERATOR, J/PSI MESONS, HERA, CENTRAL TRACKING DETECTOR, LEADING PROTON, High Energy Physics, ZEUS Collaboration, NUCLEON SCATTERING, BARREL CALORIMETER, EXCLUSIVE ELECTROPRODUCTION, CROSS-SECTION
Abstract: Deep inelastic scattering and its diffractive component, e p → e′ γ* p → e′ X N, have been studied at HERA with the ZEUS detector using an integrated luminosity of 52.4 pb-1. The MX method has been used to extract the diffractive contribution. A wide range in the centre-of-mass energy W (37-245 GeV), photon virtuality Q2 (20-450 GeV2) and mass MX (0.28-35 GeV) is covered. The diffractive cross section for 2 < MX < 15 GeV rises strongly with W, the rise becoming steeper as Q2 increases. The data are also presented in terms of the diffractive structure function, F2D (3), of the proton. For fixed Q2 and fixed MX, xP F2D (3) shows a strong rise as xP → 0, where xP is the fraction of the proton momentum carried by the pomeron. For Bjorken-x < 1 × 10-3, xP F2D (3) shows positive log Q2 scaling violations, while for x ≥ 5 × 10-3 negative scaling violations are observed. The diffractive structure function is compatible with being leading twist. The data show that Regge factorisation is broken. © 2008 Elsevier B.V. All rights reserved.
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42. Subjet distributions in deep inelastic scattering at HERA

Author: S. CHEKANOV, M. DERRICK, S. MAGILL, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M. C. K. MATTINGLY, P. ANTONIOLI, G. BARI, L. BELLAGAMBA, D. BOSCHERINI, A. BRUNI, G. BRUNI, F. CINDOLO, M. CORRADI, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, S. ANTONELLI, M. BINDI, S. DE PASQUALE, A. ZICHICHI, D. BARTSCH, I. BROCK, H. HARTMANN, E. HILGER, H. P. JAKOB, M. JÜNGST, A. E. NUNCIO QUIROZ, E. PAUL, U. SAMSON, V. SCHÖNBERG, R. SHEHZADI, M. WLASENKO, N. H. BROOK, G. P. HEATH, J. D. MORRIS, M. KAUR, P. KAUR, I. SINGH, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J. Y. KIM, Z. A. IBRAHIM, F. MOHAMAD IDRIS, B. KAMALUDDIN, W. A. T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, K. OLKIEWICZ, B. PAWLIK, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, O. BEHNKE, U. BEHRENS, I. BLOCH, C. BLOHM, A. BONATO, K. BORRAS, D. BOT, R. CIESIELSKI, N. COPPOLA, S. FANG, J. FOURLETOVA, A. GEISER, P. GÖTTLICHER, J. GREBENYUK, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, A. HÜTTMANN, J. JANUSCHEK, B. KAHLE, I. I. KATKOV, U. KLEIN, U. KÖTZ, H. KOWALSKI, M. LISOVYI, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I. A. MELZER PELLMANN, S. MIGLIORANZI, A. MONTANARI, T. NAMSOO, D. NOTZ, A. PARENTI, P. ROLOFF, I. RUBINSKY, U. SCHNEEKLOTH, A. SPIRIDONOV, D. SZUBA, J. SZUBA, T. THEEDT, J. UKLEJA, G. WOLF, K. WRONA, A. G. YAGUES MOLINA, C. YOUNGMAN, W. ZEUNER, V. DRUGAKOV, W. LOHMANN, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N. N. VLASOV, P. J. BUSSEY, A. T. DOYLE, W. DUNNE, M. FORREST, M. ROSIN, D. H. SAXON, I. O. SKILLICORN, I. GIALAS, K. PAPAGEORGIU, U. HOLM, R. KLANNER, E. LOHRMANN, H. PERREY, P. SCHLEPER, T. SCHÖRNER SADENIUS, J. SZTUK, H. STADIE, M. TURCATO, C. FOUDAS, C. FRY, K. R. LONG, A. D. TAPPER, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A. N. BARAKBAEV, E. G. BOOS, N. S. POKROVSKIY, B. O. ZHAUTYKOV, V. AUSHEV, O. BACHYNSKA, M. BORODIN, I. KADENKO, A. KOZULIA, V. LIBOV, D. LONTKOVSKYI, I. MAKARENKO, I.U. SOROKIN, A. VERBYTSKYI, O. VOLYNETS, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, M. SOARES, J. TERRÓN, C. URIBE ESTRADA, F. CORRIVEAU, C. LIU, J. SCHWARTZ, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B. A. DOLGOSHEIN, D. GLADKOV, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R. K. DEMENTIEV, P. F. ERMOLOV, L. K. GLADILIN, Y.U. A. GOLUBKOV, L. A. KHEIN, I. A. KORZHAVINA, V. A. KUZMIN, B. B. LEVCHENKO, O. Y.U. LUKINA, A. S. PROSKURYAKOV, L. M. SHCHEGLOVA, D. S. ZOTKIN, I. ABT, A. CALDWELL, D. KOLLAR, B. REISERT, W. B. SCHMIDKE, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L. S. DURKIN, A. LEE, T. Y. LING, P. D. ALLFREY, M. A. BELL, A. M. COOPER SARKAR, R. C. E. DEVENISH, J. FERRANDO, B. FOSTER, C. GWENLAN, K. HORTON, K. OLIVER, A. ROBERTSON, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, B. Y. OH, A. RAVAL, J. J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J. E. COLE, J. C. HART, H. ABRAMOWICZ, R. INGBIR, S. KANANOV, A. LEVY, A. STERN, M. KUZE, J. MAEDA, R. HORI, S. KAGAWA, N. OKAZAKI, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y. D. RI, M. COSTA, M. I. FERRERO, V. MONACO, R. SACCHI, V. SOLA, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J. F. MARTIN, T. P. STEWART, S. K. BOUTLE, J. M. BUTTERWORTH, R. HALL WILTON, T. W. JONES, J. H. LOIZIDES, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R. J. NOWAK, J. M. PAWLAK, W. PERLANSKI, T. TYMIENIECKA, A. F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, A. UKLEJA, Y. EISENBERG, D. HOCHMAN, U. KARSHON, E. BROWNSON, D. D. REEDER, A. A. SAVIN, W. H. SMITH, H. WOLFE, S. BHADRA, C. D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, J. STANDAGE, J. WHYTE, BASILE, MAURIZIO, CIFARELLI, LUISA, CONTIN, ANDREA, SARTORELLI, GABRIELLA, RINALDI, LORENZO, Zeus (IHEF, IoP, FNWI), S. CHEKANOV, M. DERRICK, S. MAGILL, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, P. ANTONIOLI, G. BARI, L. BELLAGAMBA, D. BOSCHERINI, A. BRUNI, G. BRUNI, F. CINDOLO, M. CORRADI, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, S. ANTONELLI, M. BASILE, M. BINDI, L. CIFARELLI, A. CONTIN, S. DE PASQUALE, G. SARTORELLI, A. ZICHICHI, D. BARTSCH, I. BROCK, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JÜNGST, A.E. NUNCIO-QUIROZ, E. PAUL, U. SAMSON, V. SCHÖNBERG, R. SHEHZADI, M. WLASENKO, N.H. BROOK, G.P. HEATH, J.D. MORRIS, M. KAUR, P. KAUR, I. SINGH, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, Z.A. IBRAHIM, F. MOHAMAD IDRIS, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, K. OLKIEWICZ, B. PAWLIK, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, O. BEHNKE, U. BEHRENS, I. BLOCH, C. BLOHM, A. BONATO, K. BORRAS, D. BOT, R. CIESIELSKI, N. COPPOLA, S. FANG, J. FOURLETOVA, A. GEISER, P. GÖTTLICHER, J. GREBENYUK, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, A. HÜTTMANN, J. JANUSCHEK, B. KAHLE, I.I. KATKOV, U. KLEIN, U. KÖTZ, H. KOWALSKI, M. LISOVYI, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I.-A. MELZER-PELLMANN, S. MIGLIORANZI, A. MONTANARI, T. NAMSOO, D. NOTZ, A. PARENTI, L. RINALDI, P. ROLOFF, I. RUBINSKY, U. SCHNEEKLOTH, A. SPIRIDONOV, D. SZUBA, J. SZUBA, T. THEEDT, J. UKLEJA, G. WOLF, K. WRONA, A.G. YAGUES MOLINA, C. YOUNGMAN, W. ZEUNER, V. DRUGAKOV, W. LOHMANN, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, W. DUNNE, M. FORREST, M. ROSIN, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, K. PAPAGEORGIU, U. HOLM, R. KLANNER, E. LOHRMANN, H. PERREY, P. SCHLEPER, T. SCHÖRNER-SADENIUS, J. SZTUK, H.STADIE, M. TURCATO, C. FOUDAS, C. FRY, K.R. LONG, A.D. TAPPER, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, N.S. POKROVSKIY, B.O. ZHAUTYKOV, V. AUSHEV, O. BACHYNSKA, M. BORODIN, I. KADENKO, A. KOZULIA, V. LIBOV, D. LONTKOVSKYI, I. MAKARENKO, IU. SOROKIN, A. VERBYTSKYI, O. VOLYNETS, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, L. LABARGA, J. DEL PESO, E. RON, M. SOARES, J. TERRÓN, C. URIBE-ESTRADA, F. CORRIVEAU, C. LIU, J. SCHWARTZ, R. WALSH, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, D. GLADKOV, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F.ERMOLOV, L.K. GLADILIN, YU.A. GOLUBKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A.KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, I. ABT, A. CALDWELL, D. KOLLAR, B. REISERT, W.B. SCHMIDKE, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, P.D. ALLFREY, M.A. BELL, A.M. COOPER-SARKAR, R.C.E. DEVENISH, J. FERRANDO, B.FOSTER, C. GWENLAN, K. HORTON, K. OLIVER, A. ROBERTSON, R. WALCZAK, P. BELLAN, A. BERTOLIN, R. BRUGNERA, R. CARLIN, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, B.Y. OH, A. RAVAL, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.E. COLE, J.C. HART, H. ABRAMOWICZ, R. INGBIR, S. KANANOV, A. LEVY, A. STERN, M. KUZE, J. MAEDA, R. HORI, S. KAGAWA, N. OKAZAKI, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.COSTA, M.I. FERRERO, V. MONACO, R. SACCHI, V. SOLA, A. SOLANO, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, T.P. STEWART, S.K. BOUTLE, J.M. BUTTERWORTH, R. HALL-WILTON, T.W. JONES, J.H. LOIZIDES, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J.NOWAK, J.M. PAWLAK, W. PERLANSKI, T. TYMIENIECKA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, A. UKLEJA, Y. EISENBERG, D. HOCHMAN, U. KARSHON, E. BROWNSON, D.D. REEDER, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, Y. CUI, G. HARTNER, S. MENARY, U. NOOR, J. STANDAGE, and J. WHYTE.
Subjects: Particle physics, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), Lepton-Nucleon Scattering, HERA, FOS: Physical sciences, Parton, HIGH Q(2), COLOR DIPOLE MODEL, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics, ZEUS Collaboration, DIJET PRODUCTION, 0103 physical sciences, ddc:530, 010306 general physics, Engineering (miscellaneous), Physics, Luminosity (scattering theory), ZEUS (particle detector), Neutral current, 010308 nuclear & particles physics, Scattering, INCLUSIVE-JET, Perturbative QCD, JET CROSS-SECTIONS, CENTRAL TRACKING DETECTOR, PHYSICS EVENT GENERATION, ZEUS BARREL CALORIMETER, HADRON-COLLISIONS, Deep inelastic scattering, High Energy Physics::Experiment
Abstract: Subjet distributions were measured in neutral current deep inelastic ep scattering with the ZEUS detector at HERA using an integrated luminosity of 81.7 pb-1. Jets were identified using the kT cluster algorithm in the laboratory frame. Subjets were defined as jet-like substructures identified by a reapplication of the cluster algorithm at a smaller value of the resolution parameter ycut. Measurements of subjet distributions for jets with exactly two subjets for ycut=0.05 are presented as functions of observables sensitive to the pattern of parton radiation and to the colour coherence between the initial and final states. Perturbative QCD predictions give an adequate description of the data., 48 pages, 26 figures
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43. Search for contact interactions in deep inelastic e+p → e+X scattering at HERA

Author: Breitweg, J, Chekanov, S, Derrick, M, Krakauer, D, Magill, S, Musgrave, B, Pellegrino, A, Repond, J, Stanek, R, Yoshida, R, Mattingly, MCK, Abbiendi, G, Anselmo, F, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, GC, Castellini, G, Cifarelli, L, Cindolo, F, Contin, A, Coppola, N, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Laurenti, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Polini, A, Sartorelli, G, Garcia, YZ, Zichichi, A, Amelung, C, Bornheim, A, Brock, I, Coboken, K, Crittenden, J, Deffner, R, Eckert, M, Hartmann, H, Heinloth, K, Heinz, L, Hilger, E, Jakob, HP, Kappes, A, Katz, UF, Kerger, R, Paul, E, Pfeiffer, M, Rautenberg, J, Schnurbusch, H, Stifutkin, A, Tandler, J, Weber, A, Wieber, H, Bailey, DS, Barret, O, Cottingham, WN, Foster, B, Heath, GP, Heath, HF, McFall, JD, Piccioni, D, Scott, J, Tapper, RJ, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Jeoung, HY, Kim, JY, Lee, JH, Lim, IT, Ma, KJ, Pac, MY, Caldwell, A, Cartiglia, N, Jing, Z, Liu, W, Mellado, B, Parsons, JA, Ritz, S, Sacchi, R, Sampson, S, Sciulli, F, Zhu, Q, Borzemski, P, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Olkiewicz, K, Przybycien, MB, Zawiejski, L, Adamczyk, L, Bednarek, B, Jelen, K, Kisielewska, D, Kowal, AM, Kowalski, T, Przybycien, M, Rulikowska-Zarebska, E, Suszycki, L, Zajac, J, Dulinski, Z, Kotanski, A, Bauerdick, LAT, Behrens, U, Bienlein, JK, Burgard, C, Desler, K, Drews, G, Fox-Murphy, A, Fricke, U, Goebel, F, Gottlicher, P, Graciani, R, Haas, T, Hain, W, Hartner, GF, Hasell, D, Hebbel, K, Johnson, KF, Kasemann, M, Koch, W, Kotz, U, Kowalski, H, Lindemann, L, Lohr, B, Martinez, M, Milewski, J, Milite, M, Monteiro, T, Moritz, M, Notz, D, Pelucchi, F, Piotrzkowski, K, Rohde, M, Saull, PRB, Savin, AA, Schneekloth, U, Schwarzer, O, Selonke, F, Sievers, M, Stonjek, S, Tassi, E, Wolf, G, Wollmer, U, Youngman, C, Zeuner, W, Burow, BD, Coldewey, C, Grabosch, HJ, Viani, ALD, Meyer, A, Monig, K, Schlenstedt, S, Straub, PB, Barbagli, G, Gallo, E, Pelfer, P, Maccarrone, G, Votano, L, Bamberger, A, Eisenhardt, S, Markun, P, Raach, H, Wolfle, S, Brook, NH, Bussey, PJ, Doyle, AT, Lee, SW, Macdonald, N, McCance, GJ, Saxon, DH, Sinclair, LE, Skillicorn, IO, Strickland, E, Waugh, R, Gendner, N, Holm, U, Meyer-Larsen, A, Salehi, H, Wick, K, Gialas, I, Gladilin, LK, Kcira, D, Klanner, R, Lohrmann, E, Poelz, G, Zetsche, F, Bacon, TC, Cole, JE, Howell, G, Lamberti, L, Long, KR, Miller, DB, Prinias, A, Sedgbeer, JK, Sideris, D, Tapper, AD, Walker, R, Mallik, U, Wang, SM, Cloth, P, Filges, D, Ishii, T, Kuze, M, Suzuki, I, Tokushuku, K, Yamada, S, Yamauchi, K, Yamazaki, Y, Ahn, SH, An, SH, Hong, SJ, Lee, SB, Nam, SW, Park, SK, Lim, H, Park, IH, Son, D, Barreiro, F, Fernandez, JP, Garcia, G, Glasman, C, Hernandez, JM, Labarga, L, del Peso, J, Puga, J, Redondo, I, Terron, J, Corriveau, F, Hanna, DS, Hartmann, J, Murray, WN, Ochs, A, Padhi, S, Riveline, M, Stairs, DG, St-Laurent, M, Wing, M, Tsurugai, T, Bashkirov, V, Dolgoshein, BA, Bashindzhagyan, GL, Ermolov, PF, Golubkov, YA, Khein, LA, Korotkova, NA, Korzhavina, IA, Kuzmin, VA, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Solomin, AN, Zotkin, SA, Botje, M, Brummer, N, Engelen, J, Koffeman, E, Kooijman, P, van Sighem, A, Tiecke, H, Tuning, N, Velthuis, JJ, Verkerke, W, Vossebeld, J, Wiggers, L, de Wolf, E, Acosta, D, Bylsma, B, Durkin, LS, Gilmore, J, Ginsburg, CM, Kim, CL, Ling, TY, Nylander, P, Blaikley, HE, Boogert, S, Cashmore, RJ, Cooper-Sarkar, AM, Devenish, RCE, Edmonds, JK, Grosse-Knetter, J, Harnew, N, Matsushita, T, Noyes, VA, Quadt, A, Ruske, O, Sutton, MR, Walczak, R, Waters, DS, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, F, Dondana, S, Dosselli, U, Dusini, S, Limentani, S, Morandin, M, Posocco, M, Stanco, L, Stroili, R, Voci, C, Iannotti, L, Oh, BY, Okrasinski, JR, Toothacker, WS, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Raso, M, Cormack, C, Hart, JC, McCubbin, NA, Shah, TP, Epperson, D, Heusch, C, Sadrozinski, HFW, Seiden, A, Wichmann, R, Williams, DC, Pavel, N, Abramowicz, H, Dagan, S, Kananov, S, Kreisel, A, Levy, A, Schechter, A, Abe, T, Fusayasu, T, Inuzuka, M, Nagano, K, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Homma, K, Kitamura, S, Nishimura, T, Arneodo, M, Cirio, R, Costa, M, Ferrero, MI, Maselli, S, Monaco, V, Peroni, C, Petrucci, MC, Ruspa, M, Solano, A, Staiano, A, Dardo, M, Bailey, DC, Fagerstroem, CP, Galea, R, Koop, T, Levman, GM, Martin, JF, Orr, RS, Polenz, S, Sabetfakhri, A, Simmons, D, Catterall, CD, Hayes, ME, Heaphy, EA, Jones, TW, Lane, JB, Ciborowski, J, Grzelak, G, Nowak, RJ, Pawlak, JM, Pawlak, R, Smalska, B, Tymieniecka, T, Wroblewski, AK, Zakrzewski, JA, Zarnecki, AF, Adamus, M, Gadaj, T, Deppe, O, Eisenberg, Y, Hochman, D, Karshon, U, Badgett, WF, Chapin, D, Cross, R, Foudas, C, Mattingly, S, Reeder, DD, Smith, WH, Vaiciulis, A, Wildschek, T, Wodarczyk, M, Deshpande, A, Dhawan, S, Hughes, VW, Bhadra, S, Frisken, WR, Hall-Wilton, R, Khakzad, M, Menary, S, Schmidke, WB, Collaboration, ZEUS, and Zeus (IHEF, IoP, FNWI)
Subjects: Particle physics, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), Physics beyond the Standard Model, JET FRAGMENTATION, Nuclear physics, Effective mass (solid-state physics), NUCLEON SCATTERING, EVENT GENERATOR, Engineering (miscellaneous), QC, Event generator, Physics, Neutral current, Scattering, ZEUS, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, ATOMIC PARITY VIOLATION, FERMION-PAIR PRODUCTION, COMPOSITENESS SCALES, PARTON DISTRIBUTIONS, Detector, HERA, Amplitude, High Energy Physics::Experiment
Abstract: In a search for signatures of physics processes beyond the Standard Model, various eeqq vector contact–interaction hypotheses have been tested using the high– $Q^2$ deep inelastic neutral–current $e^+p$ scattering data collected with the ZEUS detector at HERA. The data correspond to an integrated luminosity of $47.7\,{\rm pb}^{-1}$ of $e^+p$ interactions at 300 GeV center–of–mass energy. No significant evidence of a contact–interaction signal has been found. Limits at the 95% confidence level are set on the contact–interaction amplitudes. The effective mass scales $\Lambda$ corresponding to these limits range from 1.7 TeV to 5 TeV for the contact–interaction scenarios considered.

44. Search for resonances decaying to e+-jet in e+p interactions at HERA

Author: Breitweg, J, Chekanov, S, Derrick, M, Krakauer, D, Magill, S, Musgrave, B, Pellegrino, A, Repond, J, Stanek, R, Yoshida, R, Mattingly, MCK, Abbiendi, G, Anselmo, F, Antonioli, P, Bari, G, Basile, M, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Romeo, GC, Castellini, G, Cifarelli, L, Cindolo, F, Contin, A, Coppola, N, Corradi, M, De Pasquale, S, Giusti, P, Iacobucci, G, Laurenti, G, Levi, G, Margotti, A, Massam, T, Nania, R, Palmonari, F, Pesci, A, Polini, A, Sartorelli, G, Garcia, YZ, Zichichi, A, Amelung, C, Bornheim, A, Brock, I, Coboken, K, Crittenden, J, Deffner, R, Hartmann, K, Heinloth, K, Hilger, E, Irrgang, P, Jakob, HP, Kappes, A, Katz, UF, Kerger, R, Paul, E, Schnurbusch, H, Stifutkin, A, Tandler, J, Voss, KC, Weber, A, Wieber, H, Bailey, DS, Barret, O, Brook, NH, Foster, B, Heath, GP, Heath, HF, McFall, JD, Piccioni, D, Rodrigues, E, Scott, J, Tapper, RJ, Capua, M, Mastroberardino, A, Schioppa, M, Susinno, G, Jeoung, HY, Kim, JY, Lee, JH, Lim, IT, Ma, KJ, Pac, MY, Caldwell, A, Liu, W, Liu, X, Mellado, B, Paganis, S, Sacchi, R, Sampson, S, Sciulli, F, Chwastowski, J, Eskreys, A, Figiel, J, Klimek, K, Olkiewicz, K, Piotrzkowski, K, Przybycien, MB, Stopa, P, Zawiejski, L, Adamczyk, L, Bednarek, B, Jelen, K, Kisielewska, D, Kowal, AM, Kowalski, T, Przybycien, M, Rulikowska-Zarebska, E, Suszycki, L, Szuba, D, Kotanski, A, Bauerdick, LAT, Behrens, U, Bienlein, JK, Burgard, C, Desler, K, Drews, G, Fox-Murphy, A, Fricke, U, Goebel, F, Gottlicher, P, Graciani, R, Haas, T, Hain, W, Hartner, GF, Hasell, D, Hebbel, K, Johnson, KF, Kasemann, M, Koch, W, Kotz, U, Kowalski, H, Lindemann, L, Lohr, B, Martinez, M, Milite, M, Monteiro, T, Moritz, M, Notz, D, Pelucchi, F, Petrucci, MC, Rohde, M, Saull, PRB, Savin, AA, Schneekloth, U, Selonke, F, Sievers, M, Stonjek, S, Tassi, E, Wolf, G, Wollmer, U, Youngman, C, Zeuner, W, Coldewey, C, Grabosch, HJ, Viani, ALD, Meyer, A, Schlenstedt, S, Straub, PB, Barbagli, C, Gallo, E, Pelfer, P, Maccarrone, C, Votano, L, Bamberger, A, Benen, A, Eisenhardt, S, Markun, P, Raach, H, Wolfle, S, Bussey, PJ, Doyle, AT, Lee, SW, Macdonald, N, McCance, GJ, Saxon, DH, Sinclair, LE, Skillicorn, IO, Waugh, R, Bohnet, I, Gendner, N, Holm, U, Meyer-Larsen, A, Salehi, H, Wick, K, Dannheim, D, Garfagnini, A, Gialas, I, Gladilin, LK, Kcira, D, Klanner, R, Lohrmann, E, Poelz, G, Zetsche, F, Goncalo, R, Long, KR, Miller, DB, Tapper, AD, Walker, R, Mallik, U, Cloth, P, Filges, D, Ishii, T, Kuze, M, Nagano, K, Tokushuku, K, Yamada, S, Yamazaki, Y, Ahn, SH, Lee, SB, Park, SK, Lim, H, Park, IH, Son, D, Barreiro, F, Garcia, G, Glasman, C, Gonzalez, O, Labarga, L, del Peso, J, Redondo, I, Terron, J, Barbi, M, Corriveau, F, Hanna, DS, Ochs, A, Padhi, S, Riveline, M, Stairs, DG, Wing, M, Tsurugai, T, Bashkirov, V, Dologshein, BA, Dementiev, RK, Ermolov, PF, Golubkov, YA, Katkov, II, Khein, LA, Korotkova, NA, Korzhavina, IA, Kuzmin, VA, Lukina, OY, Proskuryakov, AS, Shcheglova, LM, Solomin, AN, Vlasov, NN, Zotkin, SA, Bokel, C, Botje, M, Brummer, N, Engelen, J, Grijpink, S, Koffeman, E, Kooijman, P, Schagen, S, van Sighem, A, Tiecke, H, Tuning, N, Velthuis, JJ, Vossebeld, J, Wiggers, L, de Wolf, E, Acosta, D, Bylsma, B, Durkin, LS, Gilmore, J, Ginsburg, CM, Kim, CL, Ling, TY, Boogert, S, Cooper-Sarkar, AM, Devenish, RCE, Grosse-Knetter, J, Matsushita, T, Ruske, O, Sutton, MR, Walczak, R, Bertolin, A, Brugnera, R, Carlin, R, Dal Corso, F, Dosselli, U, Dusini, S, Limentani, S, Morandin, M, Posocco, M, Stanco, LL, Stroili, R, Voci, C, Iannotti, L, Oh, BY, Okrasinski, JR, Toothacker, WS, Whitmore, JJ, Iga, Y, D'Agostini, G, Marini, G, Nigro, A, Cormack, C, Hart, JC, McCubbin, NA, Shah, TP, Epperson, D, Heusch, C, Sadrozinski, HFW, Seiden, A, Wichmann, R, Williams, DC, Pavel, N, Abramowicz, H, Dagan, S, Kananov, S, Kreisel, A, Levy, A, Abe, T, Fusayasu, T, Umemori, K, Yamashita, T, Hamatsu, R, Hirose, T, Inuzuka, M, Kitamura, S, Nishimura, T, Arneodo, M, Cartiglia, N, Cirio, R, Costa, M, Ferrero, MI, Maselli, S, Monaco, V, Peroni, C, Ruspa, M, Solano, A, Staiano, A, Dardo, M, Bailey, DC, Fagerstroem, CP, Galea, R, Koop, T, Levman, GM, Martin, JE, Orr, RS, Polenz, S, Sabetfakhri, A, Simmons, D, Butterworth, JM, Catterall, CD, Hayes, ME, Heaphy, EA, Jones, TW, Lane, JB, West, BJ, Ciborowski, J, Ciesielski, R, Grzelak, G, Nowak, RJ, Pawlak, JM, Pawlak, R, Smalska, B, Tymieniecka, T, Wroblewski, AK, Zakrzewski, JA, Zarnecki, AF, Adamus, M, Gadaj, T, Deppe, O, Eisenberg, K, Hochman, D, Karshon, U, Badgett, WF, Chapin, D, Cross, R, Foudas, C, Mattingly, S, Reeder, DD, Smith, WH, Vaiciulis, A, Wildschek, T, Wodarczyk, M, Deshpande, A, Dhawan, S, Hughes, VW, Bhadra, S, Catterall, C, Cole, JE, Frisken, WR, Hall-Wilton, R, Khakzad, M, Menary, S, Schmidke, WB, Collaboration, ZEUS, and Zeus (IHEF, IoP, FNWI)
Subjects: Particle physics, MONTE-CARLO GENERATOR, Physics and Astronomy (miscellaneous), P(P)OVER-BAR COLLISIONS, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, Standard Model, Nuclear physics, PHYSICS, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, SCATTERING, Invariant mass, Leptoquark, LEPTOQUARK PAIR PRODUCTION, 010306 general physics, Engineering (miscellaneous), QC, Physics, Luminosity (scattering theory), Neutral current, 010308 nuclear & particles physics, Branching fraction, ZEUS, HERA, LEP, MODEL, Mass spectrum, High Energy Physics::Experiment, HADRON-COLLISIONS
Abstract: The $e^+$ -jet invariant mass spectrum produced in the reaction $e^+ p \rightarrow e^+ X$ has been studied at a center-of-mass energy of 300 GeV. The data were collected using the ZEUS detector operating at the HERA collider, and correspond to an integrated luminosity of $47.7$ pb $^{-1}$ . The observed mass spectrum is in good agreement with Standard Model expectations up to an $e^+$ -jet mass of $210$ GeV. Above this mass, some excess is seen. The angular distribution of these events is typical of high- $Q^2$ neutral current events and does not give convincing evidence for the presence of a narrow scalar or vector state. Limits are presented on the product of cross section and branching ratio for such a state and are interpreted as limits on leptoquark or R-parity-violating squark production. Specific leptoquark types are ruled out at 95% confidence level for coupling strength $\lambda=0.3$ for masses between 150 and 280 GeV.

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