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1. Measurement of D0, D+, Ds + and D*+ production in fixed target 920 GeV proton–nucleus collisions

Author

Laura Silva, D. Goloubkov, I. Matchikhilian, Maurizio Piccinini, V. Egorytchev, S. Solunin, I. Abt, R. Pernack, M. Mevius, F. Sanchez, Peter Robmann, P. Kreuzer, B. Schwenninger, H. B. Dreis, Vladimir Popov, C. B. Krauss, I. Belotelov, H. S. Subramania, D. Skrk, M. Schmelling, U. Schwanke, B. Lomonosov, Dmitry Emeliyanov, Marcus Hohlmann, S. De Castro, K. M. Danielsen, Reinhard Männer, Yu.T. Kiryushin, U. Husemann, M. Medinnis, Y. Pylypchenko, Mikhail Zavertyaev, R. Zimmermann, J. Flammer, I. Rostovtseva, Y. Vassiliev, O. Barsukova, A. H. Walenta, H. Schröder, M. Adams, J. J. Wang, S. Shuvalov, Z. Zheng, M. Ispiryan, T. Živko, S. Gradl, Thomas Lohse, Mauro Villa, S. Essenov, E. B. Klinkby, S. Keller, S. Somov, S. Karabekyan, M. Bräuer, M. Walter, Aleksandar Aleksandrov, A. Gellrich, F. Eisele, M. Ouchrif, O. Gouchtchine, R. Muresan, M. Nörenberg, N.N. Karpenko, Vladislav Balagura, G. Bohm, J.D. Hansen, Laura Fabbri, J. Groth-Jensen, Hermann Kolanoski, J. Bastos, Imma Riu, António Amorim, C. Padilla, H. Deppe, P. Križan, V. Rybnikov, S. Kupper, I. Tikhomirov, A. Golutvin, B. Bobchenko, K. T. Knöpfle, C. van Eldik, Andrej Gorišek, Nicola Semprini-Cesari, A. Belkov, L. Garrido, M. Negodaev, C. Stegmann, A. Bogatyrev, M. Feuerstack-Raible, Mogens Dam, A. Schreiner, A. Vitale, T. Buran, J. Gläß, D. Krücker, I. Kisel, J. Spengler, S. Xella-Hansen, B. A. Petersen, Pietro Faccioli, Yu. A. Golubkov, V. Aushev, B. Fominykh, I. Tsakov, Yu.V. Mikhailov, A. Lanyov, R. Spighi, F. Sciacca, F. Grimaldi, S. Korpar, C. Bauer, D. C. Goulart, D. Reßing, M. Symalla, A. J. Schwartz, Jose M Hernandez, R. Pestotnik, Werner Hofmann, A. Michetti, H. Albrecht, M. Böcker, Marco Bruschi, I. Gorbounov, A. Bertin, B. Lewendel, Peter Buchholz, B. Schmidt, R. Mankel, B. Giacobbe, Y. Bagaturia, R. Wurth, D. Pose, Y. Guilitsky, S. Prystupa, Wouter Hulsbergen, K. Ehret, M. Funcke, J. Kessler, Antonio Sbrizzi, S. J. Aplin, Helmut Wolters, B. Schwingenheuer, Farid Ould-Saada, T. Jagla, X. Dong, F. Khasanov, S. Masciocchi, T. Kvaratskheliia, J. Batista, M. Danilov, J. Pyrlik, R. Mizuk, O. Igonkina, M. zur Nedden, M. Poli, Kwong Lau, M. Starič, A. S. Schwarz, Alexander Spiridonov, U. Uwer, Valery Pugatch, D. Peralta, A. Zhelezov, M. Bruinsma, A. Somov, Kendall Reeves, Aleš Stanovnik, G. Medin, I. Vukotic, João Carvalho, H. Rick, H. Kapitza, T. Zeuner, Antonio Zoccoli, I. Massa, Vasco Amaral, A. Wurz, T. Hott, P. Conde, Igor Golutvin, Yu. Zaitsev, C. Cruse, M. A. Pleier, Th. Bauer, Sebastian Nowak, D. Wegener, H. Wahlberg, W. Gradl, C. Jiang, M. Bargiotti, M. T. Nunez Pardo de Vera, M. Agari, Ulrich Werthenbach, L. Sozuer, Maksym Titov, I. ABT, M. ADAMS, M. AGARI, H. ALBRECHT, A. ALEKSANDROV, V. AMARAL, A. AMORIM, S.J. APLIN, V. AUSHEV, Y. BAGATURIA, V. BALAGURA, M. BARGIOTTI, O. BARSUKOVA, J. BASTOS, J. BATISTA, C. BAUER, TH.S. BAUER, A. BELKOV, AR. BELKOV, I. BELOTELOV, A. BERTIN, B. BOBCHENKO, M. BOCKER, A. BOGATYREV, G. BOHM, M. BRAUER, M. BRUINSMA, M. BRUSCHI, P. BUCHHOLZ, T. BURAN, J. CARVALHO, P. CONDE, C. CRUSE, M. DAM, K.M. DANIELSEN, M. DANILOV, S. DE CASTRO, H. DEPPE, X. DONG, H.B. DREIS, V. EGORYTCHEV, K. EHRET, F. EISELE, D. EMELIYANOV, S. ESSENOV, L. FABBRI, P. FACCIOLI, M. FEUERSTACK-RAIBLE, J. FLAMMER, B. FOMINYKH, M. FUNCKE, LL. GARRIDO, A. GELLRICH, B. GIACOBBE, J. GLA), D. GOLOUBKOV, Y. GOLUBKOV, A. GOLUTVIN, I. GOLUTVIN, I. GORBOUNOV, A. GORISEK, O. GOUCHTCHINE, D.C. GOULART, S. GRADL, W. GRADL, F. GRIMALDI, J. GROTH-JENSEN, YU. GUILITSKY, J.D. HANSEN, J.M. HERNANDEZ, W. HOFMANN, M. HOHLMANN, T. HOTT, W. HULSBERGEN, U. HUSEMANN, O. IGONKINA, M. ISPIRYAN, T. JAGLA, C. JIANG, H. KAPITZA, S. KARABEKYAN, N. KARPENKO, S. KELLER, J. KESSLER, F. KHASANOV, YU. KIRYUSHIN, I. KISEL, E. KLINKBY, K.T. KNOPFLE, H. KOLANOSKI, S. KORPAR, C. KRAUSS, P. KREUZER, P. KRIZAN, D. KRUCKER, S. KUPPER, T. KVARATSKHELIIA, A. LANYOV, K. LAU, B. LEWENDEL, T. LOHSE, B. LOMONOSOV, R. MANNER, R. MANKEL, S. MASCIOCCHI, I. MASSA, I. MATCHIKHILIAN, G. MEDIN, M. MEDINNIS, M. MEVIUS, A. MICHETTI, YU. MIKHAILOV, R. MIZUK, R. MURESAN, M. ZUR NEDDEN, M. NEGODAEV, M. NORENBERG, S. NOWAK, M.T. NUNEZ PARDO DE VERA, M. OUCHRIF, F. OULD-SAADA, C. PADILLA, D. PERALTA, R. PERNACK, R. PESTOTNIK, B.A. PETERSEN, M. PICCININI, M.A. PLEIER, M. POLI, V. POPOV, D. POSE, S. PRYSTUPA, V. PUGATCH, Y. PYLYPCHENKO, J. PYRLIK, K. REEVES, D. RESSING, H. RICK, I. RIU, P. ROBMANN, I. ROSTOVTSEVA, V. RYBNIKOV, F. SANCHEZ, A. SBRIZZI, M. SCHMELLING, B. SCHMIDT, A. SCHREINER, H. SCHRODER, U. SCHWANKE, A.J. SCHWARTZ, A.S. SCHWARZ, B. SCHWENNINGER, B. SCHWINGENHEUER, F. SCIACCA, N. SEMPRINI-CESARI, S. SHUVALOV, L. SILVA, D. SKRK, L. SOZUER, S. SOLUNIN, A. SOMOV, S. SOMOV, J. SPENGLER, R. SPIGHI, A. SPIRIDONOV, A. STANOVNIK, M. STARIC, C. STEGMANN, H.S. SUBRAMANIA, M. SYMALLA, I. TIKHOMIROV, M. TITOV, I. TSAKOV, U. UWER, C. VAN ELDIK, YU. VASSILIEV, M. VILLA, A. VITALE, I. VUKOTIC, H. WAHLBERG, A.H. WALENTA, M. WALTER, J.J. WANG, D. WEGENER, U. WERTHENBACH, H. WOLTERS, R. WURTH, A. WURZ, S. XELLA-HANSEN, YU. ZAITSEV, M. ZAVERTYAEV, T. ZEUNER, A. ZHELEZOV, Z. ZHENG, R. ZIMMERMANN, T. ZIVKO, and A. ZOCCOLI

Subjects
Mass number, Physics, Particle physics, Physics and Astronomy (miscellaneous), Proton, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, HERA, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, symbols.namesake, 0103 physical sciences, symbols, Feynman diagram, ddc:530, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous), Storage ring, HERA-B
Abstract

The inclusive production cross sections of the charmed mesons D^0, D^+, D_s^+ and D^{*+} have been measured in interactions of 920 GeV protons on C, Ti, and W targets with the HERA-B detector at the HERA storage ring. Differential cross sections as a function of transverse momentum and Feynman's x variable are given for the central rapidity region and for transverse momenta up to $\pT=3.5$ GeV/$c$. The atomic mass number dependence and the leading to non-leading particle production asymmetries are presented as well., Comment: Submitted to EPJ C

Published
2007
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2. K*0 and φ meson production in proton–nucleus interactions at $\sqrt{s}=41.6\text{GeV}$

Author

I. Abt, M. Adams, M. Agari, H. Albrecht, A. Aleksandrov, V. Amaral, A. Amorim, S.J. Aplin, V. Aushev, Y. Bagaturia, V. Balagura, M. Bargiotti, O. Barsukova, J. Bastos, J. Batista, C. Bauer, T.S. Bauer, A. Belkov, I. Belotelov, A. Bertin, B. Bobchenko, M. Böcker, A. Bogatyrev, G. Bohm, M. Bräuer, M. Bruinsma, M. Bruschi, P. Buchholz, T. Buran, J. Carvalho, P. Conde, C. Cruse, M. Dam, K.M. Danielsen, M. Danilov, S. De Castro, H. Deppe, X. Dong, H.B. Dreis, V. Egorytchev, K. Ehret, F. Eisele, D. Emeliyanov, S. Essenov, L. Fabbri, P. Faccioli, M. Feuerstack-Raible, J. Flammer, B. Fominykh, M. Funcke, L. Garrido, A. Gellrich, B. Giacobbe, J. Gläß, D. Goloubkov, Y. Golubkov, A. Golutvin, I. Golutvin, I. Gorbounov, A. Gorišek, O. Gouchtchine, D.C. Goulart, S. Gradl, W. Gradl, F. Grimaldi, J. Groth-Jensen, Y. Guilitsky, J.D. Hansen, J.M. Hernández, W. Hofmann, M. Hohlmann, T. Hott, W. Hulsbergen, U. Husemann, O. Igonkina, M. Ispiryan, T. Jagla, C. Jiang, H. Kapitza, S. Karabekyan, N. Karpenko, S. Keller, J. Kessler, F. Khasanov, Y. Kiryushin, I. Kisel, E. Klinkby, K.T. Knöpfle, H. Kolanoski, S. Korpar, C. Krauss, P. Kreuzer, P. Križan, D. Krücker, S. Kupper, T. Kvaratskheliia, A. Lanyov, K. Lau, B. Lewendel, T. Lohse, B. Lomonosov, R. Männer, R. Mankel, S. Masciocchi, I. Massa, I. Matchikhilian, G. Medin, M. Medinnis, M. Mevius, A. Michetti, Y. Mikhailov, R. Mizuk, R. Muresan, M. zur Nedden, M. Negodaev, M. Nörenberg, S. Nowak, M.T. Núñez Pardo de Vera, M. Ouchrif, F. Ould-Saada, C. Padilla, D. Peralta, R. Pernack, R. Pestotnik, B.A. Petersen, M. Piccinini, M.A. Pleier, M. Poli, V. Popov, D. Pose, S. Prystupa, V. Pugatch, Y. Pylypchenko, J. Pyrlik, K. Reeves, D. Reßing, H. Rick, I. Riu, P. Robmann, I. Rostovtseva, V. Rybnikov, F. Sánchez, A. Sbrizzi, M. Schmelling, B. Schmidt, A. Schreiner, H. Schröder, U. Schwanke, A.J. Schwartz, A.S. Schwarz, B. Schwenninger, B. Schwingenheuer, F. Sciacca, N. Semprini-Cesari, S. Shuvalov, L. Silva, L. Sözüer, S. Solunin, A. Somov, S. Somov, J. Spengler, R. Spighi, A. Spiridonov, A. Stanovnik, M. Starič, C. Stegmann, H.S. Subramania, M. Symalla, I. Tikhomirov, M. Titov, I. Tsakov, U. Uwer, C. van Eldik, Y. Vassiliev, M. Villa, A. Vitale, I. Vukotic, H. Wahlberg, A.H. Walenta, M. Walter, J.J. Wang, D. Wegener, U. Werthenbach, H. Wolters, R. Wurth, A. Wurz, Y. Zaitsev, M. Zavertyaev, T. Zeuner, A. Zhelezov, Z. Zheng, R. Zimmermann, T. Živko, A. Zoccoli, I. ABT, M. ADAMS, M. AGARI, H. ALBRECHT, A. ALEKSANDROV, V. AMARAL, A. AMORIM, S.J. APLIN, V. AUSHEV, Y. BAGATURIA, V. BALAGURA, M. BARGIOTTI, O. BARSUKOVA, J. BASTOS, J. BATISTA, C. BAUER, T.S. BAUER, A. BELKOV, I. BELOTELOV, A. BERTIN, B. BOBCHENKO, M. BÖCKER, A. BOGATYREV, G. BOHM, M. BRÄUER, M. BRUINSMA, M. BRUSCHI, P. BUCHHOLZ, T. BURAN, J. CARVALHO, P. CONDE, C. CRUSE, M. DAM, K.M. DANIELSEN, M. DANILOV, S. DE CASTRO, H. DEPPE, X. DONG, H.B. DREIS, V. EGORYTCHEV, K. EHRET, F. EISELE, D. EMELIYANOV, S. ESSENOV, L. FABBRI, P. FACCIOLI, M. FEUERSTACK-RAIBLE, J. FLAMMER, B. FOMINYKH, M. FUNCKE, L. GARRIDO, A. GELLRICH, B. GIACOBBE, J. GLÄß, D. GOLOUBKOV, Y. GOLUBKOV, A. GOLUTVIN, I. GOLUTVIN, I. GORBOUNOV, A. GORISEK, O. GOUCHTCHINE, D.C. GOULART, S. GRADL, W. GRADL, F. GRIMALDI, J. GROTH-JENSEN, Y. GUILITSKY, J.D. HANSEN, J.M. HERNÁNDEZ, W. HOFMANN, M. HOHLMANN, T. HOTT, W. HULSBERGEN, U. HUSEMANN, O. IGONKINA, M. ISPIRYAN, T. JAGLA, C. JIANG, H. KAPITZA, S. KARABEKYAN, N. KARPENKO, S. KELLER, J. KESSLER, F. KHASANOV, Y. KIRYUSHIN, I. KISEL, E. KLINKBY, K.T. KNÖPFLE, H. KOLANOSKI, S. KORPAR, C. KRAUSS, P. KREUZER, P. KRIZAN, D. KRÜCKER, S. KUPPER, T. KVARATSKHELIIA, A. LANYOV, K. LAU, B. LEWENDEL, T. LOHSE, B. LOMONOSOV, R. MÄNNER, R. MANKEL, S. MASCIOCCHI, I. MASSA, I. MATCHIKHILIAN, G. MEDIN, M. MEDINNIS, M. MEVIUS, A. MICHETTI, Y. MIKHAILOV, R. MIZUK, R. MURESAN, M. ZUR NEDDEN, M. NEGODAEV, M. NÖRENBERG, S. NOWAK, M.T. NÚÑEZ PARDO DE VERA, M. OUCHRIF, F. OULD-SAADA, C. PADILLA, D. PERALTA, R. PERNACK, R. PESTOTNIK, B.A. PETERSEN, M. PICCININI, M.A. PLEIER, M. POLI, V. POPOV, D. POSE, S. PRYSTUPA, V. PUGATCH, Y. PYLYPCHENKO, J. PYRLIK, K. REEVES, D. REßING, H. RICK, I. RIU, P. ROBMANN, I. ROSTOVTSEVA, V. RYBNIKOV, F. SÁNCHEZ, A. SBRIZZI, M. SCHMELLING, B. SCHMIDT, A. SCHREINER, H. SCHRÖDER, U. SCHWANKE, A.J. SCHWARTZ, A.S. SCHWARZ, B. SCHWENNINGER, B. SCHWINGENHEUER, F. SCIACCA, N. SEMPRINI-CESARI, S. SHUVALOV, L. SILVA, L. SÖZÜER, S. SOLUNIN, A. SOMOV, S. SOMOV, J. SPENGLER, R. SPIGHI, A. SPIRIDONOV, A. STANOVNIK, M. STARIC, C. STEGMANN, H.S. SUBRAMANIA, M. SYMALLA, I. TIKHOMIROV, M. TITOV, I. TSAKOV, U. UWER, C. VAN ELDIK, Y. VASSILIEV, M. VILLA, A. VITALE, I. VUKOTIC, H. WAHLBERG, A.H. WALENTA, M. WALTER, J.J. WANG, D. WEGENER, U. WERTHENBACH, H. WOLTERS, R. WURTH, A. WURZ, Y. ZAITSEV, M. ZAVERTYAEV, T. ZEUNER, A. ZHELEZOV, Z. ZHENG, R. ZIMMERMANN, T. ZIVKO, A. ZOCCOLI, PRT, GBR, CZE, SWE, DEU, NOR, USA, SVN, CHE, DZA, BGR, DNK, RUS, NLD, DIP. DI FISICA, DIPARTIMENTO DI FISICA E ASTRONOMIA 'AUGUSTO RIGHI', Facolta' di INGEGNERIA, SECONDA FACOLTA' DI INGEGNERIA DELL'UNIVERSITA' DI BOLOGNA CON SEDE CESENA, Da definire, and AREA MIN. 02 - Scienze fisiche

Subjects
PA CROSS SECTION, Physics, Strange quark, Particle physics, HADROPRODUCTION, Physics and Astronomy (miscellaneous), Proton, Meson, 010308 nuclear & particles physics, Nuclear Theory, Sigma, HERA, Phi meson, 01 natural sciences, High Energy Physics - Experiment, 0103 physical sciences, ddc:530, High Energy Physics::Experiment, Rapidity, Atomic number, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous)
Abstract

The inclusive production cross sections of the strange vector mesons K*0, K*0bar, and phi have been measured in interactions of 920 GeV protons with C, Ti, and W targets with the HERA-B detector at the HERA storage ring. Differential cross sections as a function of rapidity and transverse momentum have been measured in the central rapidity region and for transverse momenta up to pT=3.5 GeV/c. The atomic number dependence is parametrised as sigma(pA) = sigma(pN)*A**alpha, where sigma(pN) is the proton-nucleon cross section. Within the phase space accessible, alpha(K*0) = 0.86+/-0.03, alpha(K*0bar) = 0.87+/-0.03, and alpha(phi) = 0.96+/-0.02. The total proton-nucleon cross sections, determined by extrapolating the differential measurements to full phase space, are sigma(pN->K*0) = 5.06+/-0.54 mb, sigma(pN->K*0bar) = 4.02+/-0.45 mb, and sigma(pN->phi) = 1.17+/-0.11 mb. The Cronin effect is observed for the first time for vector mesons containing strange quarks; compared to the measurements of Cronin et al. for K+- mesons, the measured values of alpha for phi mesons coincide with those of K- mesons for all transverse momenta, while the enhancement for K*0 / K*0bar mesons is smaller., Comment: 19 pages, 17 figures, submitted to Eur Phys J C

Published
2007
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3. V0 production in p+A collisions at $\sqrt{s}=41.6$ GeV

Author

A. Michetti, Y. Guilitsky, S. Kupper, T. Hott, B. Lewendel, P. Conde, S. Xella-Hansen, Igor Golutvin, K. Ehret, J. Kessler, Antonio Sbrizzi, Yu. Zaitsev, Peter Buchholz, Y. Bagaturia, T. Jagla, X. Dong, Ll. Garrido, T. Kvaratskheliia, H. Deppe, E. B. Klinkby, Laura Silva, P. Kreuzer, F. Sanchez, S. Solunin, Wouter Hulsbergen, C. Bauer, I. Gorbounov, Andrej Gorišek, A. H. Walenta, D. Reßing, C. Cruse, A. J. Schwartz, Jose M Hernandez, M. A. Pleier, I. Massa, M. Danilov, Helmut Wolters, Farid Ould-Saada, Maurizio Piccinini, A. Belkov, U. Schwanke, B. Giacobbe, R. Spighi, J. Bastos, R. Pernack, D. Krücker, S. Prystupa, Yu. A. Golubkov, O. Igonkina, M. Funcke, M. Poli, R. Pestotnik, I. Abt, H. Rick, O. Barsukova, A. Bertin, T. Živko, Mikhail Zavertyaev, Valery Pugatch, A. Zhelezov, Laura Fabbri, Alexander Spiridonov, S. Essenov, M. Adams, S. De Castro, J. Groth-Jensen, M. zur Nedden, I. Rostovtseva, M. T. Nunez Pardo de Vera, M. Agari, A. Stanovnik, N.N. Karpenko, S. Keller, C. Padilla, Kwong Lau, Antonio Zoccoli, H. Schröder, Ulrich Werthenbach, A. S. Schwarz, Y. Vassiliev, H. B. Dreis, T. Zeuner, Vladimir Popov, U. Uwer, S. Masciocchi, F. Eisele, João Carvalho, H. Albrecht, K. M. Danielsen, J. Gläß, B. Lomonosov, M. Medinnis, M. Negodaev, A. Wurz, S. Karabekyan, J. Spengler, Y. Pylypchenko, Nicola Semprini-Cesari, Dmitry Emeliyanov, R. Mankel, Mauro Villa, Vasco Amaral, Reinhard Männer, R. Wurth, D. Pose, M. Nörenberg, M. Feuerstack-Raible, Mogens Dam, A. Bogatyrev, R. Mizuk, B. Schmidt, Imma Riu, Samo Korpar, C. Stegmann, Marcus Hohlmann, P. Križan, A. Golutvin, B. Bobchenko, Z. Zheng, Th. S. Bauer, A. Vitale, C. B. Krauss, C. van Eldik, U. Husemann, L. Sozuer, S. J. Aplin, B. Schwingenheuer, I. Kisel, A. Lanyov, I. Matchikhilian, R. Zimmermann, T. Buran, M. Böcker, B. A. Petersen, J. Pyrlik, Pietro Faccioli, V. Aushev, M. Ispiryan, F. Sciacca, S. Gradl, I. Belotelov, H. Kapitza, V. Rybnikov, I. Tsakov, M. Bruinsma, Kendall Reeves, Marco Bruschi, Maksym Titov, F. Grimaldi, M. Symalla, Vladislav Balagura, J. J. Wang, A. Schreiner, H. S. Subramania, J.D. Hansen, M. Bräuer, M. Walter, F. Khasanov, M. Starič, J. Batista, António Amorim, A. Somov, D. Peralta, I. Vukotic, Peter Robmann, K. T. Knöpfle, G. Medin, S. Somov, Aleksandar Aleksandrov, M. Ouchrif, R. Muresan, C. Jiang, I. Tikhomirov, B. Schwenninger, Yu.T. Kiryushin, M. Bargiotti, Sebastian Nowak, D. Wegener, S. Shuvalov, H. Wahlberg, W. Gradl, M. Schmelling, J. Flammer, B. Fominykh, Yu.V. Mikhailov, D. C. Goulart, Werner Hofmann, A. Gellrich, O. Gouchtchine, G. Bohm, Hermann Kolanoski, Thomas Lohse, D. Goloubkov, V. Egorytchev, and M. Mevius

Subjects
Astrofísica, Teoria quàntica de camps, Physics and Astronomy (miscellaneous), Astronomy, Nuclear physics, Astrophysics, 01 natural sciences, Partícules (Física nuclear), High Energy Physics - Experiment, symbols.namesake, Cross section (physics), String models, 0103 physical sciences, Feynman diagram, ddc:530, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous), Particles (Nuclear physics), Physics, Models de corda, 010308 nuclear & particles physics, Hyperon, Function (mathematics), Quantum field theory, Transverse plane, Astronomia, symbols, High Energy Physics::Experiment, Física nuclear, Production (computer science), Atomic number, Atomic physics, Bar (unit)
Abstract

Inclusive doubly differential cross sections d^2\sigma_{pA}/dx_Fdp_T^2 as a function of Feynman-x (x_F) and transverse momentum (p_T) for the production of K^0_s, Lambda^0 and anti-Lambda^0 in proton-nucleus interactions at 920 GeV are presented. The measurements were performed by HERA-B in the negative x_F range (-0.12, Comment: 17 pages, 9 figures, 8 tables; minor revisions based on comments from the journal referee

Published
2009
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4. Inclusive V production cross sections from 920 GeV fixed target proton-nucleus collisions

Author

Imma Riu, F. Sanchez, Hernan Wahlberg, L. Garrido, B. Bobchenko, N. Tesch, Brian Petersen, I. Kisel, C. Stegmann, C. B. Krauss, Mikhail Zavertyaev, O. Barsukova, J. L. Rosen, O. Steinkamp, Ulrich Werthenbach, D. Ryzhikov, F. Klefenz, D. Dujmic, I. Belotelov, H. Kapitza, H. Thurn, Yu. Pavlenko, P. Kreuzer, Jenny Ivarsson, Pietro Faccioli, M. Beck, I. Golutvin, V. Aushev, R. Wurth, T. Perschke, Mauro Villa, D. Broemmelsiek, M. Chmeissani, H. Sun, J. Yang, A. Michetti, Paul Edmund Karchin, A. Stanovnik, H. Fleckenstein, M. Ouchrif, S. Korpar, J. Luidemann, M. Spahn, K. Hofner, A. Kaoukher, Helmut Wolters, V. Saveliev, L. Sozuer, V. Vagnoni, J. Chamanina, A. Bogatyrev, Farid Ould-Saada, Kwong Lau, B. Lewende, M. Mevius, Yu.V. Mikhailov, L. Seybold, Ramon Miquel, J. D. Hansen, Søren Schmidt, Peter Robmann, Wolfgang Wagner, R. van Staa, R Stdenis, S. Hausmann, R. Chistov, D. Samtleben, B. Lomonosov, K. Berkhan, V. Rusinov, V. Eiges, M. Medinnis, D. C. Goulart, Dmitry Emeliyanov, S. Schaller, Z. Ke, I. Belyaev, A. Zhelezov, Samim Erhan, W. Ruckstuhl, A. Moshkin, V. Popov, Werner Hofmann, P.E. Schlein, J. Glass, R. F. Schwitters, Valery Pugatch, S. Essenov, J.J. Wang, D. Wegener, J. Rieling, Roberto Spighi, R. Mankel, A. Lange, D. Krücker, S. Nowak, D. Pose, J. Bastos, A. Belkov, Hyun-Chul Kim, N.N. Karpenko, W. Schmidt-Parzefall, Umberto Marini Bettolo Marconi, S. Steinbeck, V. Souvorov, A. Schreiner, Thomas Hamacher, B. Dolgoshein, W. Gradl, M. A. Pleier, C. Borgmeier, A. S. Schwarz, K. T. Knöpfle, B. Schwenninger, K. E. K. Gerndt, Antonio Zoccoli, Y. Guilitsky, Y. Vassiliev, U. Straumann, Yu.T. Kiryushin, I. Gorbounov, F. Saadi-Ludemannm, M. Dressel, M. Poli, D. Peralta, T. Lohse, I. Negri, M. Capeans, A. Bertin, Antonio Sbrizzi, Z. Zheng, S. Karabekyan, Y. Bagaturia, S. Ramachandran, G. Leffers, A. Vitale, I. Vukotic, S. Semenov, J. Zweizig, K. M. Danielsen, Benedetto Giacobbe, A. Gellrich, X. Dong, S. Shuvalov, Reinhard Männer, B. Schwingenheuer, B. Fominykh, F. Khasanov, M. Nörenberg, V. Rybnikov, M. Funcke, M. Walter, Nicola Semprini-Cesari, M. Bruinsma, M. Bargiotti, P. Pakhlov, C. van Eldik, H. Deppe, David Gascon, M. Hildebrandt, Kendall Reeves, I. C. Legrand, Vasco Amaral, S. Fourletov, M. Rietz, J. Shiu, O. Gouchtchine, J. Pyrlik, S. Solunin, W. Fallot-Burghardt, S. Keller, S. F. Takach, Christian Bauer, T. Glebe, Andrej Gorišek, D. Galli, H. Schröder, M. Ispiryan, M. Titov, G. Bohm, V. Bassetti, T. Fuljahn, Hermann Kolanoski, L. Matchikhilian, F Sciacca, Klaus Dehmelt, S. Gradl, R. Pernack, S. Issever, H. Itterbeck, V. Kochetkov, T. Zeuner, D. Skrk, I. Abt, B. X. Chen, M. Sang, P. Truöl, W. Hulsbergen, R. Baghshetsyan, P. J. Weyers, R. Wanke, J. Spengler, B. Schmidt, K. Ehret, Yuriy Pylypchenko, R. Pestotnik, Y. Jia, T. Buran, R. Loke, F. Sun, Ulrich Husemann, J. Flammer, M. Böcker, A. Pose, C. Jiang, A. Spiridonov, A. Christensen, M. Symalla, R. Eckmann, A. Golutvin, S. J. Aplin, João Carvalho, U. Trunk, M. S. Atiya, I. Tsakov, S. Nam, Olga Igonkina, V. Balagura, R. Muresan, M. Feuerstack-Raible, Y. Wang, C. Hast, G. Zech, A. Mohapatra, H. B. Dreis, M. Buchler, Mogens Dam, I. Arino, R. Mizuk, U. Schwanke, Laura Fabbri, S. De Castro, M. Danilov, P. Krizan, S. Masciocchi, A. H. Walenta, D. Goloubkov, K. Riechmann, B. Moshous, A. Lanyov, G. Medin, Z. Zhu, H. Deckers, A. Soldatov, T. Zivko, Marcus Hohlmann, A. Arefiev, F. Ratnikov, I. Tikhomirov, H. Albrecht, R. Zimmermann, I. Massa, A. Garcia, R. F. Harr, M. T. N. P. de Vera, T. Oest, D. Ressing, V. Egorytchev, A. Oliveira, A. Wurz, M. Bräuer, C. Rothe, H. D. Schultz, António Amorim, Peter Buchholz, T. Kvaratskheliia, Th.S. Bauer, T. Walter, M. Starič, A. Somov, M. Adams, E. Sexauer, M. Negodaev, Yang Liu, A. J. Schwartz, D. Stieler, Jose M Hernandez, M. Bruschi, M. Piccinini, A. Hoscher, G.J. Wagner, I. Siccama, M. Schmelling, S. Barsuk, S. Spratte, F. Eisele, M. Capponi, T. Hott, P. Conde, T. Jagla, S. Somov, Yu. Zaitsev, C. Cruse, C. Padilla, S. Xella-Hansen, A. Abyzov, and U. Uwer

Subjects
Physics, Physics and Astronomy (miscellaneous), Proton, 010308 nuclear & particles physics, Sigma, HERA, Lambda, 7. Clean energy, 01 natural sciences, Atomic mass, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, Nucleon, 010303 astronomy & astrophysics, Engineering (miscellaneous), HERA-B, Bar (unit)
Abstract

Inclusive differential cross sections dsigma(pA)/dx(F) and dsigma(pA)/dp(t)(2) for the production of K-S(0), Lambda, and (U) over bar particles are measured at HERA in proton-induced reactions on C, Al, Ti, and W targets. The incident beam energy is 920 GeV, corresponding to roots = 41.6 GeV in the proton-nucleon system. The ratios of differential cross sections dsigma(pA)(K-S(0))/dsigma(pA)(Lambda) and dsigma(pA)((U) over bar)/dsigma(pA) (Lambda) are measured to be 6.2 +/- 0.5 and 0.66 +/- 0.07, respectively, for x(F) approximate to -0.06. No significant dependence upon the target material is observed. Within errors, the slopes of the transverse momentum distributions da,Ald t also show no significant dependence upon the target material. The dependence of the extrapolated total cross sections sigma(pA) on the atomic mass A of the target material is discussed, and the deduced cross sections per nucleon sigma(pN) are compared with results obtained at other energies.

Published
2003
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5. Measurement of the $b\overline{b}$ production cross section in 920 GeV fixed-target proton-nucleus collisions

Author

R. Spighi, Dmitry Emeliyanov, H. Fleckenstein, Jian Wang, R. van Staa, S. Hausmann, Y. Pylypchenko, T. Glebe, Antonio Zoccoli, R. Chistov, D. Samtleben, I. Siccama, Imma Riu, C. B. Krauss, B. Bobchenko, A. Hoscher, T. Zeuner, I. C. Legrand, W. Hulsbergen, Y. Jia, Z. Zheng, J. Flammer, R. Baghshetsyan, A. Bogatyrev, D. Broemmelsiek, Olga Igonkina, K. E. K. Gerndt, D. Skrk, Y. Vassiliev, M. Hildebrandt, V. Balagura, J. Bastos, G. Zech, A. Mohapatra, A. Belkov, Valery Pugatch, M. Bräuer, G.J. Wagner, H. Kapitza, M. A. Pleier, S. Gradl, A. Schreiner, Maurizio Piccinini, H. Thurn, Sebastian Nowak, V. Rusinov, Th. S. Bauer, B. X. Chen, R. Mizuk, V. Souvorov, T. Buran, D. Wegener, W. Gradl, S. Essenov, L. Seybold, Søren Schmidt, K. Riechmann, R. Pernack, S. Issever, S. Karabekyan, J. Rosen, Z. Ke, B. Lomonosov, J. Rieling, V. Eiges, H. Albrecht, Vincenzo Vagnoni, P. J. Weyers, R. Loke, S. Somov, M. Ouchrif, H. Wahlberg, M. Böcker, A. Pose, I. Belyaev, A. Lange, K. M. Danielsen, Jenny Ivarsson, M. Capponi, M. Atiya, V. Amaral, I. Massa, A. Abyzov, T. Oest, G. Medin, D. Galli, F. Eisele, Hyun-Chul Kim, Samim Erhan, T. Zivko, U. Marconi, S. Masciocchi, D. Pose, M. Symalla, S. J. Aplin, F. Sanchez, C. van Eldik, Marco Bruschi, H. Sun, A. Michetti, Paul Edmund Karchin, H. Deppe, A. Kaoukher, W. Ruckstuhl, D. Peralta, Z. Zhu, B. Moshous, Peter Robmann, S. De Castro, I. Vukotic, V. Egorytchev, A. Oliveira, M. Rietz, A. Arefiev, P. Kreuzer, J. Shiu, S. Xella-Hansen, David Gascon, U. Schwanke, Ramon Miquel, C. Rothe, H. D. Schultz, H. B. Dreis, K. Berkhan, T. Hott, Peter E. Schlein, J. Luidemann, Y. Wang, C. Stegmann, A. Vitale, Andrej Gorišek, A. Bertin, M. Walter, S. Semenov, C. Borgmeier, M. Poli, Helmut Wolters, Farid Ould-Saada, T. Fuljahn, L. Garrido, F. Ratnikov, I. Tikhomirov, C. Jiang, O. Barsukova, A. Spiridonov, A. Stanovnik, O. Gouchtchine, S. Shuvalov, F. Klefenz, Ulrich Werthenbach, D. Ryzhikov, Wolfgang Wagner, A. Christensen, Mike Medinnis, O. Steinkamp, S. Steinbeck, J. Glass, R. F. Schwitters, R. Pestotnik, M. T. N. P. de Vera, Robert Harr, V. Saveliev, G. Bohm, M. Spahn, Hermann Kolanoski, B. Schwingenheuer, Nicola Semprini-Cesari, M. Schmelling, Pietro Faccioli, V. Aushev, Y. Guilitsky, B. Dolgoshein, M. Capeans, J. Yang, R. Wanke, F. Sun, M. Mevius, Christian Bauer, Laura Fabbri, F. Saadi-Ludemannm, Thomas Hamacher, Antonio Sbrizzi, C. Padilla, U. Uwer, I. Belotelov, M. Nörenberg, T. Perschke, H. Schröder, A. Wurz, J. Zweizig, S. F. Takach, J. Chamanina, M. Titov, J. D. Hansen, X. Dong, B. A. A. Petersen, Mogens Dam, L. Sozuer, K. Hofner, P. Krizan, D. Goloubkov, Y. Bagaturia, I. Negri, G. Leffers, S. Barsuk, M. Beck, M. Bargiotti, B. Fominykh, S. Solunin, A. Soldatov, F Sciacca, Marcus Hohlmann, Klaus Dehmelt, W. Schmidt-Parzefall, W. Fallot-Burghardt, M. Ispiryan, D. Dujmic, I. Tsakov, L. Matchikhilian, S. Spratte, D. Ressing, R. Zimmermann, H. Itterbeck, V. Kochetkov, R. Eckmann, P. Conde, Igor Golutvin, T. Jagla, A. Garcia, N. N. Karpenko, A. Amorim, A. Moshkin, T. Walter, Ulrich Husemann, I. Arino, João Carvalho, Yu. Zaitsev, D. Krucker, H. Deckers, M. Danilov, C. Cruse, R Stdenis, M. Dressel, Peter Buchholz, A. H. Walenta, I. Gorbounov, R. Mankel, Kwong Lau, A. Gellrich, M. Funcke, T. Kvaratskheliia, R. Wurth, M. Chmeissani, B. Lewende, S. Ramachandran, A. S. Schwarz, R. Manner, A. J. Schwartz, A. Golutvin, S. Nam, M. Bruinsma, P. Pakhlov, Kendall Reeves, M. Sang, K. Ehret, I. Kisel, M. Buchler, F. Khasanov, Thomas Lohse, S. Fourletov, S. Keller, I. Abt, J. Spengler, U. Trunk, A. Lanyov, A. Zhelezov, K. T. Knöpfle, Yang Liu, U. Straumann, D. Stieler, Jose M Hernandez, B. Giacobbe, M. Adams, N. Tesch, E. Sexauer, Yu.V. Mikhailov, M. Negodaev, Mikhail Zavertyaev, D. C. Goulart, M. Starič, A. Somov, Yu. Pavlenko, S. Schaller, V. Popov, Werner Hofmann, J. Pyrlik, B. Schwenninger, Mauro Villa, Samo Korpar, Yu.T. Kiryushin, M. Feuerstack-Raible, V. Rybnikov, V. Bassetti, P. Truöl, B. Schmidt, R. Muresan, C. Hast, Geometry, (Astro)-Particles Physics, Mathematical Analysis, and Business Web and Media

Subjects
Physics, Particle physics, Physics and Astronomy (miscellaneous), Proton, 010308 nuclear & particles physics, Nuclear Theory, High Energy Physics::Phenomenology, Sigma, HERA, 01 natural sciences, Bottom quark, High Energy Physics - Experiment, Nuclear physics, Cross section (physics), 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, Engineering (miscellaneous), HERA-B, Bar (unit)
Abstract

Using the HERA-B detector, the b-bbar production cross section has been measured in 920 GeV proton collisions on carbon and titanium targets. The b-bbar production was tagged via inclusive bottom quark decays into J/psi, by exploiting the longitudinal separation of J/psi->ll decay vertices from the primary proton-nucleus interaction. Both $e^+e^-$ and $\mu^+\mu^-$ channels have been reconstructed and the combined analysis yields the cross section $\sigma(b \bar b) = 32 ^{+14}_{-12} (stat) ^{+6}_{-7} (sys) nb/nucleon$., Comment: 22 pages, 10 Postscript figures

Published
2003
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