Author: "Votano, L." / Publication Type: Magazines - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Votano, L."' showing total 52 results

Start Over Author "Votano, L." Publication Type Magazines

52 results on '"Votano, L."'

1. Search for coincident air showers over large scale distances with the EEE network

Author: La Rocca, P., Abbrescia, M., Avanzini, C., Baldini, L., Baldini Ferroli, R., Batignani, G., Battaglieri, M., Boi, S., Bossini, E., Carnesecchi, F., Chiavassa, A., Cicalo, C., Cifarelli, L., Coccetti, F., Coccia, E., Corvaglia, A., De Gruttola, D., De Pasquale, S., Fabbri, F.L., Frolov, V., Galante, L., Galeotti, P., Garbini, M., Gemme, G., Gnesi, I., Grazzi, S., Gustavino, C., Hatzifotiadou, D., Mandaglio, G., Maragoto Rodriguez, O., Maron, G., Mazziotta, M.N., Miozzi, S., Nania, R., Noferini, F., Nozzoli, F., Palmonari, F., Panareo, M., Panetta, M.P., Paoletti, R., Park, W., Pellegrino, C., Perasso, L., Pilo, F., Piragino, G., Pisano, S., Riggi, F., Righini, G.C., Ripoli, C., Rizzi, M., Sartorelli, G., Scapparone, E., Schioppa, M., Scribano, A., Selvi, M., Serci, S., Squarcia, S., Taiuti, M., Terreni, G., Trifirò, A., Trimarchi, M., Vistoli, M.C., Votano, L., Williams, M.C.S., Zheng, L., Zichichi, A., and Zuyeuski, R.
Abstract: The existence of time correlations in detectors separated by distances much larger than the size of the highest energy extensive air showers (EAS) has been long discussed over the years. Several mechanisms have been proposed to justify the existence of such events and, in the last decade, some experiments have also tried to search for correlations on a large scale distance, beyond one hundred kilometers. The approaches were based on the construction of clusters of detectors placed at large relative distances, with the capability of selecting extensive air showers.
Published: 2019
Full Text: View/download PDF

2. GIGJ: A Crustal Gravity Model of the Guangdong Province for Predicting the Geoneutrino Signal at the JUNO Experiment

Author: Reguzzoni, M., Rossi, L., Baldoncini, M., Callegari, I., Poli, P., Sampietro, D., Strati, V., Mantovani, F., Andronico, G., Antonelli, V., Bellato, M., Bernieri, E., Brigatti, A., Brugnera, R., Budano, A., Buscemi, M., Bussino, S., Caruso, R., Chiesa, D., Corti, D., Dal Corso, F., Ding, X.F., Dusini, S., Fabbri, A., Fiorentini, G., Ford, R., Formozov, A., Galet, G., Garfagnini, A., Giammarchi, M., Giaz, A., Grassi, M., Insolia, A., Isocrate, R., Lippi, I., Longhitano, F., Lo Presti, D., Lombardi, P., Malyshkin, Y., Marini, F., Mari, S.M., Martellini, C., Meroni, E., Mezzetto, M., Miramonti, L., Monforte, S., Montuschi, M., Nastasi, M., Ortica, F., Paoloni, A., Parmeggiano, S., Pedretti, D., Pelliccia, N., Pompilio, R., Previtali, E., Ranucci, G., Re, A.C., Ricci, B., Romani, A., Saggese, P., Salamanna, G., Sawy, F.H., Settanta, G., Sisti, M., Sirignano, C., Spinetti, M., Stanco, L., Verde, G., and Votano, L.
Abstract: Gravimetric methods are expected to play a decisive role in geophysical modeling of the regional crustal structure applied to geoneutrino studies. GIGJ (GOCE Inversion for Geoneutrinos at JUNO) is a 3‐D numerical model constituted by ~46 × 103voxels of 50 × 50 × 0.1 km, built by inverting GOCE (Gravity field and steady‐state Ocean Circulation Explorer) gravimetric data over the 6° × 4° area centered at the JUNO (Jiangmen Underground Neutrino Observatory) experiment, currently under construction in the Guangdong Province (China). The a priori modeling is based on the adoption of deep seismic sounding profiles, receiver functions, teleseismic Pwave velocity models, and Moho depth maps, according to their own accuracy and spatial resolution. The inversion method allowed for integrating GOCE data with the a priori information and some regularization conditions through a Bayesian approach and a stochastic optimization. GIGJ fits the highly accurate and homogeneously distributed GOCE gravity data with a ~1 mGal standard deviation of the residuals, compatible with the observation accuracy. GIGJ provides a site‐specific subdivision of the crustal layers masses, of which uncertainties include estimation errors, associated to the gravimetric solution, and systematic uncertainties, related to the adoption of a fixed sedimentary layer. A consequence of this local rearrangement of the crustal layer thicknesses is a ~21% reduction and a ~24% increase of the middle and lower crust geoneutrino signal, respectively. The geophysical uncertainties of geoneutrino signals at JUNO produced by unitary uranium and thorium abundances distributed in the upper, middle, and lower crust are reduced by 77%, 55%, and 78%, respectively. The numerical model is available at this site (http://www.fe.infn.it/radioactivity/GIGJ). A gravity‐based 3‐D crustal model beneath the Guangdong province (China) was built to predict the geoneutrino signal at the JUNO experimentThe adopted Bayesian method allows for fitting gravimetric observations integrating local prior distribution with regularization conditionsGIGJ fitted GOCE gravity data with a ~1 mGal standard deviation of the residuals, compatible with the observation accuracy
Published: 2019
Full Text: View/download PDF

3. The EEE project – Science in schools: state and results

Author: Abbrescia, M., Avanzini, C., Baldini, L., Baldini Ferroli, R., Batignani, G., Bencivenni, G., Bossini, E., Chiavassa, A., Cicalò, C., Cifarelli, L., Coccia, E., Corvaglia, A., De Gruttola, D., De Pasquale, S., Di Giovanni, A., D'Incecco, M., Dreucci, M., Fabbri, F.L., Fattibene, E., Ferraro, A., Frolov, V., Galeotti, P., Garbini, M., Gemme, G., Gnesi, I., Grazzi, S., Gustavino, C., Hatzifotiadou, D., La Rocca, P., Licciulli, F., Maggiora, A., Maragoto Rodriguez, O., Maron, G., Martelli, B., Mazziotta, M.N., Miozzi, S., Nania, R., Noferini, F., Nozzoli, F., Panareo, M., Panetta, M.P., Paoletti, R., Park, W., Perasso, L., Pilo, F., Piragino, G., Riggi, F., Righini, G.C., Sartorelli, G., Scapparone, E., Schioppa, M., Scribano, A., Selvi, M., Serci, S., Siddi, E., Squarcia, S., Stori, L., Taiuti, M., Terreni, G., Visnyei, O.B., Vistoli, M.C., Votano, L., Williams, M.C.S., Zani, S., Zichichi, A., and Zuyeuski, R.
Abstract: The Extreme Energy Events (EEE) project is an extended array for cosmic rays survey. It was conceived by Antonino Zichichi and supported by the Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi” with the collaboration of the European Organization for Nuclear Research (CERN), of the Istituto Nazionale di Fisica Nucleare (INFN) and of the Italian Ministry of Education, University and Research (MIUR). This experiment is aimed to study cosmic rays of extreme high energy, and related phenomena. To achieve this goal, a network of nearly 50 muon telescopes has been installed in high schools, distributed throughout the Italian territory, either as single stations or clusters. During the second coordinated run of data taking, which ended in May 2016, 25 billion muon tracks were detected and reconstructed. This huge amount of data, allows us to undertake various studies: the dependence of the local muon flux on solar activity; the sky anisotropy on sub-TeV scale; event correlations, due to EAS, between clustered telescopes at distances from a few hundred meters to over a kilometre. The status of the project and some results will be presented.
Published: 2017
Full Text: View/download PDF

4. A Multigap Resistive Plate Chambers array for the Extreme Energy Events Project

Author: De Gruttola, D., Abbrescia, M., Avanzini, C., Baldini, L., Baldini Ferroli, R., Batignani, G., Bencivenni, G., Bossini, E., Bressan, E., Chiavassa, A., Cicalò, C., Cifarelli, L., Coccia, E., Corvaglia, A., De Pasquale, S., Di Giovanni, A., D'Incecco, M., Dreucci, M., Fabbri, F.L., Fattibene, E., Ferraro, A., Forster, R., Frolov, V., Galeotti, P., Garbini, M., Gemme, G., Gnesi, I., Grazzi, S., Gustavino, C., Hatzifotiadou, D., La Rocca, P., Maggiora, A., Maron, G., Martelli, B., Mazziotta, M.N., Miozzi, S., Noferini, F., Nozzoli, F., Panareo, M., Panetta, M.P., Paoletti, R., Perasso, L., Pilo, F., Piragino, G., Riggi, F., Righini, G.C., Rodriguez, A.R., Sartorelli, G., Scapparone, E., Schioppa, M., Scribano, A., Selvi, M., Serci, S., Siddi, E., Squarcia, S., Taiuti, M., Terreni, G., Vistoli, M.C., Votano, L., Williams, M.C.S., Zani, G., Zichichi, A., and Zouyevski, R.
Abstract: The Extreme Energy Events (EEE) Project is a Centro Fermi - CERN - INFN - MIUR Collaboration Project, for the study of extremely high-energy cosmic rays, which exploits the Multigap Resistive Plate Chamber (MRPC) technology. The excellent time resolution and good tracking capability of this detector allows us to study Extensive Air Showers (EAS) with an array of telescopes distributed all over the Italian territory. Each telescope is installed in a High School, with the additional goal to introduce students to particle and astroparticle Physics. The EEE array is composed, so far, of 47 telescopes, each made of three MRPC planes, spanning more than 10 degrees in latitude and 11 in longitude, organized in clusters and single telescope stations. The status of the experiment and the results, obtained during two recent coordinated data taking periods, will be reported. The observation of Forbush decreases, coincidence events among different telescopes and the muon decay, using more than 5 billion tracks collected in the last few months, are of particular interest.
Published: 2016
Full Text: View/download PDF

5. Upper limits to low energy $\bar\nu_\mathrm{e}$flux from GRB 990705

Author: Aglietta, M., Alyea, E. D., Antonioli, P., Badino, G., Bari, G., Basile, M., Berezinsky, V. S., Bersani, F., Bertaina, M., Bertoni, R., Bruni, G., Cara Romeo, G., Castagnoli, C., Castellina, A., Chiavassa, A., Chinellato, J. A., Cifarelli, L., Cindolo, F., Contin, A., Dadykin, V. L., Dos Santos, L. G., Enikeev, R. I., Fulgione, W., Galeotti, P., Ghia, P. L., Giusti, P., Grianti, F., Iacobucci, G., Kemp, E., Khalchukov, F. F., Korolkova, E. V., Korchaguin, P. V., Korchaguin, V. B., Kudryavtsev, V. A., Luvisetto, M., Malguin, A. S., Massam, T., Mengotti Silva, N., Morello, C., Nania, R., Navarra, G., Periale, L., Pesci, A., Picchi, P., Pless, I. A., Ryasny, V. G., Ryazhskaya, O. G., Saavedra, O., Saitoh, K., Sartorelli, G., Selvi, M., Taborgna, N., Takahashi, N., Talochkin, V. P., Trinchero, G. C., Tsuji, S., Turtelli, A., Vallania, P., Vernetto, S., Vigorito, C., Votano, L., Wada, T., Weinstein, R., Widgoff, M., Yakushev, V. F., Yamamoto, I., Zatsepin, G. T., Zichichi, A., Aglietta, M., Alyea, E. D., Antonioli, P., Badino, G., Bari, G., Basile, M., Berezinsky, V. S., Bersani, F., Bertaina, M., Bertoni, R., Bruni, G., Cara Romeo, G., Castagnoli, C., Castellina, A., Chiavassa, A., Chinellato, J. A., Cifarelli, L., Cindolo, F., Contin, A., Dadykin, V. L., Dos Santos, L. G., Enikeev, R. I., Fulgione, W., Galeotti, P., Ghia, P. L., Giusti, P., Grianti, F., Iacobucci, G., Kemp, E., Khalchukov, F. F., Korolkova, E. V., Korchaguin, P. V., Korchaguin, V. B., Kudryavtsev, V. A., Luvisetto, M., Malguin, A. S., Massam, T., Mengotti Silva, N., Morello, C., Nania, R., Navarra, G., Periale, L., Pesci, A., Picchi, P., Pless, I. A., Ryasny, V. G., Ryazhskaya, O. G., Saavedra, O., Saitoh, K., Sartorelli, G., Selvi, M., Taborgna, N., Takahashi, N., Talochkin, V. P., Trinchero, G. C., Tsuji, S., Turtelli, A., Vallania, P., Vernetto, S., Vigorito, C., Votano, L., Wada, T., Weinstein, R., Widgoff, M., Yakushev, V. F., Yamamoto, I., Zatsepin, G. T., and Zichichi, A.
Abstract: The detection of Gamma Ray Burst GRB 990705 on 1999, July 5.66765 UT, pointing to the Large Magellanic Clouds, suggested the search for a possible neutrino counterpart, both in coincidence with and slightly before (or after) the photon burst. We exploited such a possibility by means of the LVD neutrino telescope (National Gran Sasso Laboratory, Italy), which has the capability to study low-energy cosmic neutrinos. No evidence for any neutrino signal, over a wide range of time durations, has been found, at the occurrence of GRB 990705. Due to the lack of information about both the source distance and its emission spectrum, the results of the search are expressed in terms of upper limits, at the Earth, to the $\bar{\nu}_\mathrm{e}$flux $\cdot$cross-section, integrated over different time durations, $\int \int \Phi_{\bar \nu_\mathrm{e}}\sigma {\rm d}E {\rm d}t$. Moreover, assuming thermal $\bar\nu_\mathrm{e}$spectra at the source, upper limits to the $\bar\nu_\mathrm{e}$flux, integrated over time duration, for different spectral temperatures, are obtained. Based on these limits and on the expectations for νemission from collapsing astrophysical objects, the occurrence of a gravitational stellar collapse can be excluded up to a distance $r \approx 50$kpc, in the case of time coincidence with GRB 990705, and $r \approx 20$kpc, for the 24 hours preceding it.
Published: 2001
Full Text: View/download PDF

6. The OPERA experiment

Author: Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Bender, D., Bertolin, A., Bozza, C., Brugnera, R., Buonaura, A., Buontempo, S., Büttner, B., Chernyavsky, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Del Amo Sanchez, P., Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievski, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Fini, R.A., Fukuda, T., Galati, G., Garfagnini, A., Giacomelli, G., Göllnitz, C., Goldberg, J., Gornushkin, Y., Grella, G., Guler, M., Gustavino, C., Hagner, C., Hara, T., Hollnagel, A., Hosseini, B., Ishida, H., Ishiguro, K., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Kawada, J., Kim, J.H., Kim, S.H., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lenkeit, J., Ljubicic, A., Longhin, A., Loverre, P., Malgin, A., Malenica, M., Mandrioli, G., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Mikado, S., Monacelli, P., Montesi, M.C., Morishima, K., Muciaccia, M.T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Niwa, K., Ogawa, S., Okateva, N., Olshevsky, A., Omura, T., Ozaki, K., Paoloni, A., Park, B.D., Park, I.G., Pasqualini, L., Pastore, A., Patrizii, L., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pupilli, F., Roda, M., Rokujo, H., Roganova, T., Rosa, G., Ryazhskaya, O., Sato, O., Schembri, A., Shakiryanova, I., Shchedrina, T., Sheshukov, A., Shibuya, H., Shiraishi, T., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S.M., Stipcevic, M., Strauss, T., Strolin, P., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J.L., Wilquet, G., Wonsak, B., Yoon, C.S., Zemskova, S., and Zghiche, A.
Abstract: The OPERA experiment was designed to study νμ→ντoscillations in appearance mode using the CERN to Gran Sasso high energy neutrino beam. From 2008 to 2012, 19505 CNGS neutrino interactions were recorded in the OPERA detector. At the present status of the analysis, 4 ντcandidate events have been observed, establishing the oscillation mechanism in the atmospheric sector with a significance of 4.2 σ. The oscillation analysis will be presented in detail and the candidate events will be described. The final measurement of the atmospheric muon charge ratio in the TeV region will be also reported.
Published: 2015
Full Text: View/download PDF

7. Neutrino tracking calorimetry with plastic scintillator bars

Author: Giannini, G., Santin, G., Spinetti, M., Votano, L., and Hoepfner, K.
Published: 2001
Full Text: View/download PDF

8. A multichannel single-photon sensitive detector for high-energy physics: the megapixel EBCCD

Author: Benussi, L, Fanti, V, Frekers, D, Frenkel, A, Giannini, G, Golovkin, S.V, Kozarenko, E.N, Kreslo, I.E, Liberti, B, Martellotti, G, Medvedkov, A.M, Mondardini, M.R, Penso, G, Polizzi, A, Santacesaria, R, Santini, G, Spinetti, M, Vilain, P, Votano, L, Wilquet, G, and Winter, K
Abstract: We present a study of the characteristics of a hybrid image intensifier tube based on a thinned backside Electron Bombarded CCD (EBCCD) with better performance in spatial resolution, single photoelectron detection and gain stability than the conventional intensified systems based on a Micro Channel Plate followed by a CCD. Single photon detection sensitivity has been studied and a procedure to correct the gain non-uniformity of the EBCCD has been developed. The EBCCD, operating at 14 kV, has an average gain of ∼3000 electrons/photoelectron and a noise of the order of 100 electron/pixel. These characteristics make the EBCCD a very attractive device for many applications in high-energy physics, astrophysics and biomedicine. A possible application in a neutrino oscillation experiment is presented.
Published: 2000
Full Text: View/download PDF

9. Measurement of the diffractive structure function in deep inelastic scattering at HERA

Author: Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R. L., Zhang, H., Ayad, R., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Cara Romeo, G., Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Nemoz, C., Palmonari, F., Polini, A., Sartorelli, G., Timellini, R., Zamora Garcia, Y., Zichichi, A., Bargende, A., Crittenden, J., Desch, K., Diekmann, B., Doeker, T., Eckert, M., Feld, L., Frey, A., Geerts, M., Geitz, G., Grothe, M., Hartmann, H., Heinloth, H., Hilger, E., Jakob, H. -P., Katz, U. F., Mari, S. M., Mass, A., Mengel, S., Mollen, J., Paul, E., Rembser, Ch., Schramm, D., Stamm, J., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Dyce, N., Foster, B., George, S., Gilmore, R., Heath, G. P., Heath, H. F., Llewellyn, T. J., Morgado, C. J. S., Norman, D. J. P., O'Mara, J. A., Tapper, R. J., Wilson, S. S., Yoshida, R., Rau, R. R., Arneodo, M., Capua, M., Garfagnini, A., Iannotti, L., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Cartiglia, N., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Piotrzkowski, K., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Jeleń, K., Kisielewska, D., Kowalski, T., Rulikowska-Zarębska, E., Suszycki, L., Zając, J., Kotański, A., Przybycień, M., Bauerdick, L. A. T., Behrens, U., Beier, H., Bienlein, J. K., Coldewey, C., Deppe, O., Desler, K., Drews, G., Flasiński, M., Gilkinson, D. J., Glasman, C., Göttlicher, P., Große-Knetter, J., Gutjahr, B., Haas, T., Hain, W., Hasell, D., Heßling, H., Iga, Y., Joos, P., Kasemann, M., Klanner, R., Koch, W., Köpke, L., Kötz, U., Kowalski, H., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mainusch, J., Mańczak, O., Monteiro, T., Ng, J. S. T., Nickel, S., Notz, D., Ohrenberg, K., Roco, M., Rohde, M., Roldán, J., Schneekloth, U., Schulz, W., Selonke, F., Stiliaris, E., Surrow, B., Voß, T., Westphal, D., Wolf, G., Youngman, C., Zhou, J. F., Grabosch, H. J., Kharchilava, A., Leich, A., Mattingly, M. C. K., Meyer, A., Schlenstedt, S., Wulff, N., Barbagli, G., Pelfer, P., Anzivino, G., Maccarrone, G., De Pasquale, S., Votano, L., Bamberger, A., Eisenhardt, S., Freidhof, A., Söldner-Rembold, S., Schroeder, J., Trefzger, T., Brook, N. H., Bussey, P. J., Doyle, A. T., Fleck, J. I., Saxon, D. H., Utley, M. L., Wilson, A. S., Dannemann, A., Holm, U., Horstmann, D., Neumann, T., Sinkus, R., Wick, K., Badura, E., Burow, B. D., Hagge, L., Lohrmann, E., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Zetsche, F., Bacon, T. C., Butterworth, I., Gallo, E., Harris, V. L., Hung, B. Y. H., Long, K. R., Miller, D. B., Morawitz, P. P. O., Prinias, A., Sedgbeer, J. K., Whitfield, A. F., Mallik, U., McCliment, E., Wang, M. Z., Wang, S. M., Wu, J. T., Zhang, Y., Cloth, P., Filges, D., An, S. H., Hong, S. M., Nam, S. W., Park, S. K., Suh, M. H., Yon, S. H., Imlay, R., Kartik, S., Kim, H. -J., McNeil, R. R., Metcalf, W., Nadendla, V. K., Barreiro, F., Cases, G., Fernandez, J. P., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., Martinez, M., del Peso, J., Puga, J., Terron, J., de Trocóniz, J. F., Smith, G. R., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Matthews, C. G., Patel, P. M., Sinclair, L. E., Stairs, D. G., St.Laurent, M., Ullmann, R., Zacek, G., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., Golubkov, Yu. A., Kobrin, V. D., Korzhavina, I. A., Kuzmin, V. A., Lukina, O. Yu., Proskuryakov, A. S., Savin, A. A., Shcheglova, L. M., Solomin, A. N., Zotov, N. P., Botje, M., Chlebana, F., Dake, A., Engelen, J., de Kamps, M., Kooijman, P., Kruse, A., Tiecke, H., Verkerke, W., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L. S., Honscheid, K., Li, C., Ling, T. Y., McLean, K. W., Murray, W. N., Park, I. H., Romanowski, T. A., Seidlein, R., Bailey, D. S., Byrne, A., Cashmore, R. J., Cooper-Sarkar, A. M., Devenish, R. C. E., Harnew, N., Lancaster, M., Lindemann, L., McFall, J. D., Nath, C., Noyes, V. A., Quadt, A., Tickner, J. R., Uijterwaal, H., Walczak, R., Waters, D. S., Wilson, F. F., Yip, T., Abbiendi, G., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Butterworth, J. M., Feild, R. G., Oh, B. Y., Whitmore, J. J., D'Agostini, G., Marini, G., Nigro, A., Tassi, E., Hart, J. C., McCubbin, N. A., Prytz, K., Shah, T. P., Short, T. L., Barberis, E., Dubbs, T., Heusch, C., Van Hook, M., Hubbard, B., Lockman, W., Rahn, J. T., Sadrozinski, H. F. -W., Seiden, A., Biltzinger, J., Seifert, R. J., Schwarzer, O., Walenta, A. H., Zech, G., Abramowicz, H., Briskin, G., Dagan, S., Levy, A., Hasegawa, T., Hazumi, M., Ishii, T., Kuze, M., Mine, S., Nagasawa, Y., Nakao, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nakamitsu, Y., Yamauchi, K., Cirio, R., Costa, M., Ferrero, M. I., Lamberti, L., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Bandyopadhyay, D., Benard, F., Brkic, M., Crombie, M. B., Gingrich, D. M., Hartner, G. F., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Sampson, C. R., Teuscher, R. J., Catterall, C. D., Jones, T. W., Kaziewicz, P. B., Lane, J. B., Saunders, R. L., Shulman, J., Blankenship, K., Lu, B., Mo, L. W., Bogusz, W., Charchula, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Eisenberg, Y., Karshon, U., Revel, D., Zer-Zion, D., Ali, I., Badgett, W. F., Behrens, B., Dasu, S., Fordham, C., Foudas, C., Goussiou, A., Loveless, R. J., Reeder, D. D., Silverstein, S., Smith, W. H., Vaiciulis, A., Wodarczyk, M., Tsurugai, T., Bhadra, S., Cardy, M. L., Fagerstroem, C. -P., Frisken, W. R., Furutani, K. M., Khakzad, M., and Schmidke, W. B.
Abstract: This paper presents an analysis of the inclusive properties of diffractive deep inelastic scattering events produced inep interactions at HERA. The events are characterised by a rapidity gap between the outgoing proton system and the remaining hadronic system. Inclusive distributions are presented and compared with Monte Carlo models for diffractive processes. The data are consistent with models where the pomeron structure function has a hard and a soft contribution. The diffractive structure function is measured as a function ofxP, the momentum fraction lost by the proton, of ß, the momentum fraction of the struck quark with respect toxP, and ofQ2 in the range 6.3·10-4P <10-2, 0.1<ß<0.8 and 82<100 GeV2. The dependence is consistent with the formxP wherea=1.30±0.08(stat)-0.14+0.08(sys) in all bins of ß andQ2. In the measuredQ2 range, the diffractive structure function approximately scales withQ2 at fixed ß. In an Ingelman-Schlein type model, where commonly used pomeron flux factor normalisations are assumed, it is found that the quarks within the pomeron do not saturate the momentum sum rule.
Published: 1995
Full Text: View/download PDF

10. Measurement of total and partial photon proton cross sections at 180 GeV center of mass energy

Author: Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Schlereth, J., Stanek, R., Talaga, R. L., Thron, J., Arzarello, F., Ayad, R., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Romeo, G. Cara, Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Ciralli, F., Contin, A., D'Auria, S., Del Papa, C., Frasconi, F., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Maccarrone, G., Margotti, A., Massam, T., Nania, R., Nemoz, C., Palmonari, F., Sartorelli, G., Timellini, R., Zamora Garcia, Y., Zichichi, A., Bargende, A., Crittenden, J., Desch, K., Diekmann, B., Doeker, T., Feld, L., Frey, A., Geerts, M., Geitz, G., Hartmann, H., Haun, D., Heinloth, K., Hilger, E., Jakob, H. -P., Katz, U. F., Kramarczyk, S., Mass, A., Mengel, S., Mollen, J., Paul, E., Rembser, Ch., Schattevoy, R., Schneider, J. -L., Schramm, D., Wedemeyer, R., Cassidy, A., Cussans, D. G., Dyce, N., Foster, B., George, S., Gilmore, R., Heath, G. P., Heath, H. F., Lancaster, M., Llewellyn, T. J., Morgado, C. J. S., O'Mara, J. A., Tapper, R. J., Wilson, S. S., Yoshida, R., Rau, R. R., Arneodo, M., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Gialas, I., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Borzemski, P., Chwastowski, J., Eskreys, A., Piotrzkowski, K., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Eskreys, K., Jeleń, K., Kisielewska, D., Kowalski, T., Rulikowska-Zarębska, E., Suszycki, L., Zaj⇓c, J., Kędzierski, T., Kotański, A., Przybycień, M., Bauerdick, L. A. T., Behrens, U., Bienlein, J. K., Böttcher, S., Coldewey, C., Drews, G., Flasiński, M., Fleck, I., Gilkinson, D. J., Göttlicher, P., Gutjahr, B., Haas, T., Hagge, L., Hain, W., Hasell, D., Heßling, H., Hultschig, H., Joos, P., Kasemann, M., Klanner, R., Koch, W., Köpke, L., Kötz, U., Kowalski, H., Kröger, W., Krüger, J., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mainusch, J., Mańczak, O., Ng, J. S. T., Nickel, S., Notz, D., Ohrenberg, K., Rohde, M., Roldán, J., Schneekloth, U., Schroeder, J., Schulz, W., Selonke, F., Stiliaris, E., Tsurugai, T., Vogel, W., Westphal, D., Wolf, G., Youngman, C., Grabosch, H. J., Leich, A., Meyer, A., Rethfeldt, C., Schlenstedt, S., Barbagli, G., Nuti, M., Pelfer, P., Anzivino, G., De Pasquale, S., Qian, S., Votano, L., Bamberger, A., Freidhof, A., Poser, T., Söldner-Rembold, S., Theisen, G., Trefzger, T., Brook, N. H., Bussey, P. J., Doyle, A. T., Forbes, J. R., Jamieson, V. A., Raine, C., Saxon, D. H., Stavrianakou, M., Wilson, A. S., Dannemann, A., Holm, U., Horstmann, D., Kammerlocher, H., Krebs, B., Neumann, T., Sinkus, R., Wick, K., Badura, E., Burow, B. D., Fürtjes, A., Lohrmann, E., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Terron, J., Zetsche, F., Bacon, T. C., Beuselinck, R., Butterworth, I., Gallo, E., Harris, V. L., Long, K. R., Miller, D. B., Prinias, A., Sedgbeer, J. K., Vorvolakos, A., Whitfield, A., Bienz, T., Kreutzmann, H., Mallik, U., McCliment, E., Roco, M., Wang, M. Z., Cloth, P., Filges, D., An, S. H., Hong, S. M., Kim, C. O., Kim, T. Y., Nam, S. W., Park, S. K., Suh, M. H., Yon, S. H., Imlay, R., Kartik, S., Kim, H. -J., McNeil, R. R., Metcalf, W., Nadendla, V. K., Barreiro, F., Cases, G., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., del Peso, J., Puga, J., de Trocóniz, J. F., Ikraiam, F., Mayer, J. K., Smith, G. R., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Matthews, C. G., Mitchell, J. W., Patel, P. M., Sinclair, L. E., Stairs, D. G., Laurent, M. St., Ullmann, R., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., Golubkov, Y. A., Kobrin, V. D., Kuzmin, V. A., Kuznetsov, E. N., Savin, A. A., Solomin, A. N., Voronin, A. G., Zotov, N. P., Bentyelsen, S., Botje, M., Chlebana, F., Dake, A., Engelen, J., de Jong, P., de Kamps, M., Kooijman, P., Kruse, A., O'Dell, V., Tenner, A., Tiecke, H., Verkerke, W., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L. S., Honscheid, K., Li, C., Ling, T. Y., McLean, K. W., Murray, W. N., Park, I. H., Romanowski, T. A., Seidlein, R., Bailey, D., Blair, G. A., Byrne, A., Cashmore, R. J., Cooper-Sarkar, A. M., Devenish, R. C. E., Harnew, N., Khatri, T., Luffman, P., Nash, J., Roocroft, N. C., Uijterwaal, H., Walczak, R., Wilson, F. F., Yip, T., Abbiendi, G., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Gasparini, F., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Butterworth, J. M., Feild, R. G., Oh, B. Y., Whitmore, J. J., D'Agostini, G., Guida, M., Iori, M., Mari, S. M., Marini, G., Mattioli, M., Nigro, A., Hart, J. C., McCubbin, N. A., Prytz, K., Shah, T. P., Short, T. L., Barberis, E., Cartiglia, N., Heusch, C., Van Hook, M., Hubbard, B., Lockman, W., Sadrozinski, H. F. -W., Seiden, A., Zer-Zion, D., Biltzinger, J., Seifert, R. J., Walenta, A. H., Zech, G., Abramowicz, H., Dagan, S., Levy, A., Hasegawa, T., Hazumi, M., Ishii, T., Kuze, M., Mine, S., Nagasawa, Y., Nagira, T., Nakao, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nagayama, S., Nakamitsu, Y., Cirio, R., Costa, M., Ferrero, M. I., Lamberti, L., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bandyopadhyay, D., Benard, F., Bhadra, S., Brkic, M., Crombie, M. B., Gingrich, D. M., Hartner, G. F., Levman, G. M., Martin, J. F., Orr, R. S., Sampson, C. R., Teuscher, R. J., Bullock, F. W., Catterall, C. D., Giddings, J. C., Jones, T. W., Khan, A. M., Lane, J. B., Makkar, P. L., Shaw, D., Shulman, J., Blankenship, K., Kochocki, J., Lu, B., Mo, L. W., Charchula, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Eisenberg, Y., Glasman, C., Karshon, U., Revel, D., Shapira, A., Ali, I., Behrens, B., Dasu, S., Fordham, C., Foudas, C., Goussiou, A., Loveless, R. J., Reeder, D. D., Silverstein, S., Smith, W. H., Frisken, W. R., Furutani, K. M., and Iga, Y.
Abstract: Photon proton cross sections for elastic light vector meson production, sel?p, inelastic diffractive production, snd?p, non-diffractive production, sd?p, as well as the total cross section, stot?p, have been measured at an average ?p center of mass energy of 180 GeV with the ZEUS detector at HERA. The resulting values are sel?p = 18 ± 7 µb, sd?p = 33 ± 8 µb, snd?p = 91 ± 11 µb, and stot?p 143 ± 17 µb, where the errors include statistical and systematic errors added in quadrature.
Published: 1994
Full Text: View/download PDF

11. A search for excited fermions in electron-proton collisions at HERA

Author: Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Schlereth, J., Stanek, R., Talaga, R. L., Thron, J., Arzarello, F., Ayad, R., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Romeo, G. Cara, Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Ciralli, F., Contin, A., D'Auria, S., Frasconi, F., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Nemoz, C., Palmonari, F., Polini, A., Sartorelli, G., Timellini, R., Garcia, Y. Zamora, Zichichi, A., Bargende, A., Crittenden, J., Desch, K., Diekmann, B., Doeker, T., Eckart, M., Feld, L., Frey, A., Geerts, M., Geitz, G., Grothe, M., Hartmann, H., Haun, D., Heinloth, K., Hilger, E., Jakob, H. -P., Katz, U. F., Mari, S. M., Mass, A., Mengel, S., Mollen, J., Paul, E., Rembser, Ch., Schattevoy, R., Schneider, J. -L., Schramm, D., Stamm, J., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Dyce, N., Foster, B., George, S., Gilmore, R., Heath, G. P., Heath, H. F., Llewellyn, T. J., Morgado, C. J. S., Norman, D. J. P., O'Mara, J. A., Tapper, R. J., Wilson, S. S., Yoshida, R., Rau, R. R., Arneodo, M., Iannotti, L., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Borzemski, P., Chwastowski, J., Eskreys, A., Piotrzkowski, K., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Eskreys, K., Jeleń, K., Kisielewska, D., Kowalski, T., Rulikowska-Zarebska, E., Suszycki, L., Zajac, J., Kedzierski, T., Kotański, A., Przybycień, M., Bauerdick, L. A. T., Behrens, U., Bienlein, J. K., Böttcher, S., Coldewey, C., Drews, G., Flasiński, M., Gilkinson, D. J., Göttlicher, P., Gutjahr, B., Haas, T., Hain, W., Hasell, D., Heßling, H., Hultschig, H., Iga, Y., Joos, P., Kasemann, M., Klanner, R., Koch, W., Köpke, L., Kötz, U., Kowalski, H., Kroger, W., Krüger, J., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mańczak, O., Ng, J. S. T., Nickel, S., Notz, D., Ohrenberg, K., Roco, M., Rohde, M., Roldán, J., Schneekloth, U., Schulz, W., Selonke, F., Stiliaris, E., Voß, T., Westphal, D., Wolf, G., Youngman, C., Grabosch, H. J., Leich, A., Meyer, A., Rethfeldt, C., Schlenstedt, S., Barbagli, G., Pelfer, P., Anzivino, G., Maccarrone, G., De Pasquale, S., Qian, S., Votano, L., Bamberger, A., Freidhof, A., Poser, T., Söldner-Rembold, S., Schroeder, J., Theisen, G., Trefzger, T., Brook, N. H., Bussey, P. J., Doyle, A. T., Fleck, I., Jamieson, V. A., Saxon, D. H., Utley, M. L., Wilson, A. S., Dannemann, A., Holm, U., Horstmann, D., Kammerlocher, H., Krebs, B., Neumann, T., Sinkus, R., Wick, K., Badura, E., Burow, B. D., Fürtjes, A., Hagge, L., Lohrmann, E., Mainusch, J., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Terron, J., Zetsche, F., Bacon, T. C., Beuselinck, R., Butterworth, I., Gallo, E., Harris, V. L., Hung, B. H., Long, K. R., Miller, D. B., Morawitz, P. P. O., Prinias, A., Sedgbeer, J. K., Whitfield, A. F., Mallik, U., McCliment, E., Wang, M. Z., Wang, S. M., Wu, J. T., Zhang, Y., Cloth, P., Filges, D., An, S. H., Hong, S. M., Nam, S. W., Park, S. K., Suh, M. H., Yon, S. H., Imlay, R., Kartik, S., Kim, H. -J., McNeil, R. R., Metcalf, W., Nadendla, V. K., Barreiro, F., Cases, G., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., del Peso, J., Puga, J., de Trocóniz, J. F., Ikraiam, F., Mayer, J. K., Smith, G. R., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Matthews, C. G., Patel, P. M., Sinclair, L. E., Stairs, D. G., St. Laurent, M., Ullmann, R., Zacek, G., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., golubkov, Y. A., Kobrin, V. D., Kuzmin, V. A., Proskuryakov, A. S., Savin, A. A., Shcheglova, L. M., Solomin, A. N., Zotov, N. P., Bentvelsen, S., Botje, M., Chlebana, F., Dake, A., Engelen, J., de Jong, P., de Kamps, M., Kooijman, P., Kruse, A., O'Dell, V., Tenner, A., Tiecke, H., Verkerke, W., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L. S., Honscheid, K., Li, C., Ling, T. Y., McLean, K. W., Murray, W. N., Park, I. H., Romanowski, T. A., Seidlein, R., Bailey, D. S., Blair, G. A., Byrne, A., Cashmore, R. J., Cooper-Sarkar, A. M., Daniels, D., Devenish, R. C. E., Harnew, N., Lancaster, M., Luffman, P. E., Lindemann, L., McFall, J., Nath, C., Quadt, A., Uijterwaal, H., Walczak, R., Wilson, F. F., Yip, T., Abbiendi, G., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Butterworth, J. M., Feild, R. G., Oh, B. Y., Whitmore, J. J., D'Agostini, G., Iori, M., Marini, G., Mattioli, M., Nigro, A., Tassi, E., Hart, J. C., McCubbin, N. A., Prytz, K., Shah, T. P., Short, T. L., Barberis, E., Cartiglia, N., Dubbs, T., Heusch, C., Van Hook, M., Hubbard, B., Lockman, W., Rahn, J. T., Sadrozinski, H. F. -W., Seiden, A., Biltzinger, J., Seifert, R. J., Walenta, A. H., Zech, G., Abramowicz, H., Briskin, G., Dagan, S., Levy, A., Hasegawa, T., Hazumi, M., Ishii, T., Kuze, M., Mine, S., Nagasawa, Y., Nagira, T., Nakao, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nagayama, S., Nakamitsu, Y., Cirio, R., Costa, M., Ferrero, M. I., Lamberti, L., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Bandyopadhyay, D., Benard, F., Brkic, M., Crombie, M. B., Gingrich, D. M., Hartner, G. F., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Sampson, C. R., Teuscher, R. J., Catterall, C. D., Jones, T. W., Kaziewicz, P. B., Lane, J. B., Saunders, R. L., Shulman, J., Blankenship, K., Kochocki, J., Lu, B., Mo, L. W., Bogusz, W., Charchula, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprazak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Eisenberg, Y., Glasman, C., Karshon, U., Revel, D., Shapira, A., Ali, I., Behrens, B., Dasu, S., Fordham, C., Foudas, C., Goussiou, A., Loveless, R. J., Reeder, D. D., Silverstein, S., Smith, W. H., Tsurugai, T., Bhadra, S., Frisken, W. R., and Furutani, K. M.
Abstract: A search for excited states of the standard model fermions was performed using the ZEUS detector at the HERA electron-proton collider, operating at a centre of mass energy of 296 GeV. In a sample corresponding to an integrated luminosity of 0.55 pb-1, no evidence was found for any resonant state decaying into final states composed of a fermion and a gauge boson. Limits on the coupling strength times branching ratio of excited fermions are presented for masses between 50 GeV and 250 GeV, extending previous search regions significantly.
Published: 1995
Full Text: View/download PDF

12. Measurement of the proton structure functionF2 from the 1993 HERA data

Author: Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Schlereth, J., Stanek, R., Talaga, R. L., Thron, J., Arzarello, F., Ayad, R., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Cara Romeo, G., Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Ciralli, F., Contin, A., D'Auria, S., Frasconi, F., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Nemoz, C., Palmonari, F., Polini, A., Sartorelli, G., Timellini, R., Zamora Garcia, Y., Zichichi, A., Bargende, A., Crittenden, J., Desch, K., Diekmann, B., Doeker, T., Feld, L., Frey, A., Geerts, M., Geitz, G., Grothe, M., Hartmann, H., Haun, D., Heinloth, K., Hilger, E., Jakob, H. -P., Katz, U. F., Mari, S. M., Mass, A., Mengel, S., Mollen, J., Paul, E., Rembser, Ch., Schattevoy, R., Schneider, J. -L., Schramm, D., Stamm, J., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Dyce, N., Foster, B., George, S., Gilmore, R., Heath, G. P., Heath, H. F., Llewellyn, T. J., Morgado, C. J. S., Norman, D. J. P., O'Mara, J. A., Tapper, R. J., Wilson, S. S., Yoshida, R., Rau, R. R., Arneodo, M., Iannotti, L., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Gialas, I., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Borzemski, P., Chwastowski, J., Eskreys, A., Piotrzkowski, K., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Eskreys, K., Jeleń, K., Kisielewska, D., Kowalski, T., Rulikowska-Zarębska, E., Suszycki, L., Zając, J., Kędzierski, T., Kotański, A., Przybycień, M., Bauerdick, L. A. T., Behrens, U., Bienlein, J. K., Böttcher, S., Coldewey, C., Drews, G., Flasiński, M., Gilkinson, D. J., Göttlicher, P., Gutjahr, B., Haas, T., Hagge, L., Hain, W., Hasell, D., Heßling, H., Hultschig, H., Iga, Y., Joos, P., Kasemann, M., Klanner, R., Koch, W., Köpke, L., Kötz, U., Kowalski, H., Kröger, W., Krüger, J., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mainusch, J., Mańczak, O., Ng, J. S. T., Nickel, S., Notz, D., Ohrenberg, K., Roco, M., Rohde, M., Roldán, J., Schneekloth, U., Schulz, W., Selonke, F., Stiliaris, E., Voß, T., Westphal, D., Wolf, G., Youngman, C., Grabosch, H. J., Leich, A., Meyer, A., Rethfeldt, C., Schlenstedt, S., Barbagli, G., Pelfer, P., Anzivino, G., Maccarrone, G., De Pasquale, S., Qian, S., Votano, L., Bamberger, A., Freidhof, A., Poser, T., Söldner-Rembold, S., Schroeder, J., Theisen, G., Trefzger, T., Brook, N. H., Bussey, P. J., Doyle, A. T., Fleck, I., Jamieson, V. A., Saxon, D. H., Utley, M. L., Wilson, A. S., Dannemann, A., Holm, U., Horstmann, D., Kammerlocher, H., Krebs, B., Neumann, T., Sinkus, R., Wick, K., Badura, E., Burow, B. D., Fürtjes, A., Lohrmann, E., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Terron, J., Zetsche, F., Bacon, T. C., Beuselinck, R., Butterworth, I., Gallo, E., Harris, V. L., Hung, B. H., Long, K. R., Miller, D. B., Morawitz, P. P. O., Prinias, A., Sedgbeer, J. K., Whitfield, A. F., Mallik, U., McCliment, E., Wang, M. Z., Zhang, Y., Cloth, P., Filges, D., An, S. H., Hong, S. M., Nam, S. W., Park, S. K., Suh, M. H., Yon, S. H., Imlay, R., Kartik, S., Kim, H. -J., McNeil, R. R., Metcalf, W., Nadendla, V. K., Barreiro, F., Cases, G., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., del Peso, J., Puga, J., de Trocóniz, J. F., Ikraiam, F., Mayer, J. K., Smith, G. R., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Matthews, C. G., Mitchell, J. W., Patel, P. M., Sinclair, L. E., Stairs, D. G., St. Laurent, M., Ullmann, R., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., Golubkov, Y. A., Kobrin, V. D., Kuzmin, V. A., Proskuryakov, A. S., Savin, A. A., Shcheglova, L. M., Solomin, A. N., Zotov, N. P., Bentvelsen, S., Botje, M., Chlebana, F., Dake, A., Engelen, J., de Jong, P., de Kamps, M., Kooijman, P., Kruse, A., O'Dell, V., Tenner, A., Tiecke, H., Verkerke, W., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L. S., Honscheid, K., Li, C., Ling, T. Y., McLean, K. W., Murray, W. N., Park, I. H., Romanowski, T. A., Seidlein, R., Bailey, D. S., Blair, G. A., Byrne, A., Cashmore, R. J., Cooper-Sarkar, A. M., Daniels, D., Devenish, R. C. E., Harnew, N., Lancaster, M., Luffman, P. E., Lindemann, L., McFall, J., Nath, C., Quadt, A., Uijterwaal, H., Walczak, R., Wilson, F. F., Yip, T., Abbiendi, G., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Gasparini, F., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Butterworth, J. M., Feild, R. G., Oh, B. Y., Whitmore, J. J., D'Agostini, G., Iori, M., Marini, G., Mattioli, M., Nigro, A., Tassi, E., Hart, J. C., McCubbin, N. A., Prytz, K., Shah, T. P., Short, T. L., Barberis, E., Cartiglia, N., Dubbs, T., Heusch, C., Van Hook, M., Hubbard, B., Lockman, W., Rahn, J. T., Sadrozinski, H. F. -W., Seiden, A., Biltzinger, J., Seifert, R. J., Walenta, A. H., Zech, G., Abramowicz, H., Briskin, G., Dagan, S., Levy, A., Hasegawa, T., Hazumi, M., Ishii, T., Kuze, M., Mine, S., Nagasawa, Y., Nagira, T., Nakao, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nagayama, S., Nakamitsu, Y., Cirio, R., Costa, M., Ferrero, M. I., Lamberti, L., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bandyopadhyay, D., Benard, F., Brkic, M., Crombie, M. B., Gingrich, D. M., Hartner, G. F., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Sampson, C. R., Teuscher, R. J., Catterall, C. D., Jones, T. W., Kaziewicz, P. B., Lane, J. B., Saunders, R. L., Shulman, J., Blankenship, K., Kochocki, J., Lu, B., Mo, L. W., Bogusz, W., Charchula, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Eisenberg, Y., Glasman, C., Karshon, U., Revel, D., Shapira, A., Ali, I., Behrens, B., Dasu, S., Fordham, C., Foudas, C., Goussiou, A., Loveless, R. J., Reeder, D. D., Silverstein, S., Smith, W. H., Tsurugai, T., Bhadra, S., Frisken, W. R., and Furutani, K. M.
Abstract: The ZEUS detector has been used to measure the proton structure functionF2. During 1993 HERA collided 26.7 GeV electrons on 820 GeV protons. The data sample corresponds to an integrated luminosity of 0.54 pb-1, representing a twenty fold increase in statistics compared to that of 1992. Results are presented for 72<104 GeV2 andx values as low as 3×10-4. The rapid rise inF2 asx decreases observed previously is now studied in greater detail and persists forQ2 values up to 500 GeV2.
Published: 1995
Full Text: View/download PDF

13. Hadronic energy distributions in deep-inelastic electron-proton scattering

Author: Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Repond, S., Stanek, R., Talaga, R. L., Thron, J., Arzarello, F., Ayad, R., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Cara Romeo, G., Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Ciralli, F., Contin, A., D'Auria, S., Del Papa, C., Frasconi, F., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Lin, Q., Lisowski, B., Maccarrone, G., Margotti, A., Massam, T., Nania, F., Nemoz, C., Palmonari, F., Sartorelli, G., Timellini, R., Zamora Garcia, Y., Zichichi, A., Bargende, A., Crittenden, J., Dabbous, H., Desch, K., Diekmann, B., Doeker, T., Geerts, M., Geitz, G., Hartmann, H., Haun, D., Heinloth, K., Hilger, E., Jakob, H. -P., Kramarczyk, S., Kückes, M., Mass, A., Mengel, S., Mollen, J., Monaldi, D., Müsch, H., Paul, E., Schattevoy, R., Schneider, J. -L., Schramm, D., Wedemeyer, R., Cassidy, A., Cussans, D. G., Dyce, N., Foster, B., Gilmore, R., Heath, G. P., Heath, H. F., Lancaster, M., Llewellyn, T. J., Malos, J., Morgado, C. J. S., Tapper, R. J., Wilson, S. S., Yoshida, R., Rau, R. R., Arneodo, M., Barillari, T., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Gialas, I., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Chwastowski, J., Dwurzźny, A., Eskreys, A., Jakubowski, Z., Niziol, B., Piotrzkowski, K., Zachara, M., Zawiejski, L., Bednarek, B., Borzemski, P., Eskreys, K., Jeleń, K., Kisielewska, D., Kowalski, T., Rulikowska-Zarębska, E., Suszycki, L., Zając, J., Kędzierski, T., Kotański, A., Przybycień, M., Bauerdick, L. A. T., Behrens, U., Bienlein, J. K., Böttcher, S., Coldewey, C., Dannemann, A., Drews, G., Erhard, P., Flasiński, M., Fleck, I., Gläser, R., Göttlicher, P., Gutjahr, B., Haas, T., Hagge, L., Hain, W., Hasell, D., Hultschig, H., Jahnen, G., Joos, P., Kasemann, M., Klanner, R., Koch, W., Köpke, L., Kötz, U., Kowalski, H., Krüger, J., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mainusch, J., Manczak, O., Momayezi, M., Ng, J. S. T., Nickel, S., Notz, D., Pösnecker, K. -U., Rohde, M., Roldán, J., Ros, E., Schneekloth, U., Schroeder, J., Schulz, W., Selonke, F., Stiliaris, E., Tscheslog, E., Tsurugai, T., Vogel, W., Wolf, G., Youngman, C., Grabosch, H. J., Leich, A., Meyer, A., Rethfeldt, C., Schlenstedt, S., Barbagli, G., Francescato, A., Nuti, M., Pelfer, P., Anzivino, G., Casaccia, R., De Pasquale, S., Qian, S., Votano, L., Bamberger, A., Freidhof, A., Kröger, W., Poser, T., Söldner-Rembold, S., Theisen, G., Trefzger, T., Brook, N. H., Bussey, P. J., Doyle, A. T., Forbes, J. R., Jamieson, V. A., Raine, C., Saxon, D. H., Brückmann, H., Gloth, G., Holm, U., Kammerlocher, H., Krebs, B., Neumann, T., Wick, K., Fürtjes, A., Lohrmann, E., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Terron, J., Zetsche, F., Bacon, T. C., Beuselinck, R., Butterworth, I., Gallo, E., Harris, V. L., Miller, D. B., Prinias, A., Sedgbeer, J. K., Vorvolakos, A., Whitfield, A., Bienz, T., Kreutzmann, H., Mallik, U., McCliment, E., Roco, M., Wang, M. Z., Cloth, P., Filges, D., An, S. H., Hong, S. M., Kim, C. O., Kim, T. Y., Nam, S. W., Park, S. K., Suh, M. H., Yon, S. H., Chen, L., Imlay, R., Kartik, S., Kim, H. -J., McNeil, R. R., Metcalf, W., Barreiro, F., Cases, G., Hervás, L., Labarga, L., del Peso, J., de Trocóniz, J. F., Ikraiam, F., Mayer, J. K., Smith, G. R., Corriveau, F., Gilkinson, D. J., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Meijer Drees, R., Mitchell, J. W., Patel, P. M., Sinclair, L. E., Stairs, D. G., St.Laurent, M., Ullmann, R., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., Golubkov, Y. A., Kuzmin, V. A., Kuznetsov, E. N., Savin, A. A., Voronin, A. G., Notov, N. P., Bentvelsen, S., Botje, M., Dake, A., Engelen, J., de Jong, P., de Kamps, M., Kooijman, P., Kruse, A., van der Lugt, H., O'Dell, V., Tenner, A., Tiecke, H., Uijterwaal, H., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Bylsma, B., Durkin, L. S., Honscheid, K., Li, C., Ling, T. Y., McLean, K. W., Murray, W. N., Park, I. H., Romanowski, T. A., Seidlein, R., Blair, G. A., Byrne, A., Cashmore, R. J., Cooper-Sarkar, A. M., Devenish, R. C. E., Gingrich, D. M., Hallam-Baker, P. M., Harnew, N., Khatri, T., Long, K. R., Luffman, P., McArthur, I., Morawitz, P., Nash, J., Smith, S. J. P., Roocroft, N. C., Wilson, F. F., Abbiendi, G., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Gasparini, F., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Butterworth, J. M., Bulmahn, J., Feild, G., Oh, B. Y., Whitmore, J., Contino, U., D'Agostini, G., Guida, M., Iori, M., Mari, S. M., Marini, G., Mattioli, M., Nigro, A., Hart, J. C., McCubbin, N. A., Prytz, K., Shah, T. P., Short, T. L., Barberis, E., Cartiglia, N., Heusch, C., Hubbard, B., Leslie, J., Lockman, W., O'Shaughnessy, K., Sadrozinski, H. F., Seiden, A., Zer-Zion, D., Badura, E., Biltzinger, J., Seifert, R. J., Walenta, A. H., Zech, G., Dagan, S., Levy, A., Hasegawa, T., Hazumi, M., Ishii, T., Kasai, S., Kuze, M., Nagasawa, Y., Nakao, M., Okuno, H., Tokushuku, K., Watanabe, T., Yamada, S., Chiba, M., Hamatsu, R., Hirose, T., Kitamura, S., Nagayama, S., Nakamitsu, Y., Cirio, R., Costa, M., Ferrero, M. I., Lamberti, L., Maselli, S., Peroni, C., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Bandyopadhyay, D., Benard, F., Bhadra, S., Brkic, M., Burow, B. D., Chlebana, F. S., Crombie, M. B., Hartner, G. F., Levman, G. M., Martin, J. F., Orr, R. S., Prentice, J. D., Sampson, C. R., Stairs, G. G., Teuscher, R. J., Yoon, T. -S., Bullock, F. W., Catterall, C. D., Giddings, J. C., Jones, T. W., Khan, A. M., Lane, J. B., Makkar, P. L., Shaw, D., Shulman, J., Blankenship, K., Kochocki, J., Lu, B., Mo, L. W., Charchula, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Stopczyński, A., Tymieniecka, T., Walczak, R., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Abramowicz, H., Eisenberg, Y., Glasman, C., Karshon, U., Montag, A., Revel, D., Shapira, A., Foudas, C., Fordham, C., Loveless, R. J., Goussiou, A., Ali, I., Behrens, B., Dasu, S., Reeder, D. D., Smith, W. H., Silverstein, S., Frisken, W. R., Furutani, K. M., and Iga, Y.
Abstract: This paper presents energy distributions of the hadronic system produced in neutral-current electron-proton deep-inelastic scattering at a centre of mass energy of 296 GeV. Comparison of the results with QCD Monte Carlo models shows that QCD radiation has a strong influence on the characteristics of the final state. The data are reasonably reproduced by the Lund model based on a matrix element calculation in first order ofas, followed by appropriate parton showers, as well as by the colour dipole model. The HERWIG parton shower model also gives a reasonable representation of the data. Neither the first order matrix elements alone nor the Lund parton shower model, without the matrix element calculation, reproduce the data.
Published: 1993
Full Text: View/download PDF

14. Measurement of multiplicity and momentum spectra in the current fragmentation region of the Breit frame at HERA

Author: Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R. L., Zhang, H., Avad, R., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Romeo, G. Cara, Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Contin, A., Gialas, I., Giusti, P., Lacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Nemoz, C., Palmonari, F., Polini, A., Sartorelli, G., Timellini, R., Garcia, Y. Zamora, Zichichi, A., Bargende, A., Crittenden, J., Desch, K., Diekmann, B., Doeker, T., Eckert, M., Feld, L., Frey, A., Geerts, M., Geitz, G., Grothe, M., Haas, T., Hartmann, H., Haun, D., Heinloth, K., Hilger, E., Jakob, H. -P., Katz, U. F., Mari, S. M., Mass, A., Mengel, S., Mollen, J., Paul, E., Rembser, Ch., Schattevoy, R., Schramm, D., Stamm, V., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Dyce, N., Foster, B., George, S., Gilmore, R., Heath, G. P., Heath, H. F., Llewellyn, T. J., Morgado, C. J. S., Norman, D. J. P., O'Mara, J. A., Tapper, R. J., Wilson, S. S., Yoshida, R., Rau, R. R., Arneodo, M., Iannotti, L., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Piotrzkowski, K., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Eskreys, K., Jeleń, K., Kisielewska, D., Kowalski, T., Rulikowska-Zarębska, E., Suszycki, L., Zając, J., Kotański, A., Przybycień, M., Bauerdick, I. A. T., Behrens, U., Beier, H., Bienlein, J. K., Coldewey, C., Deppe, O., Desler, K., Drews, G., Flasińki, M., Gilkinson, D. J., Glasman, C., Göttlicher, P., Große-Knetter, J., Gutjahr, B., Hain, W., Hasell, D., Heßling, H., Hultschig, H., Iga, Y., Joos, P., Kasemann, M., Klanner, R., Koch, W., Kopke, L., Kötz, U., Kowalski, H., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mańczak, O., Ng, J. S. T., Nickel, S., Notz, D., Ohrenberg, K., Roco, M., Rohde, M., Roldán, J., Schneckloth, U., Schulz, W., Selonke, F., Stiliaris, E., Surrow, B., Voß, T., Westphal, D., Wolf, G., Youngman, C., Zhou, J. F., Grabosch, H. J., Kharchilava, A., Leich, A., Mattingly, M., Meyer, A., Schlenstedt, S., Barbagli, G., Pelfer, P., Anzivino, G., Maccarrone, G., De Pasquale, S., Votano, L., Bamberger, A., Eisenhardt, S., Freidhof, A., Söldner-Rembold, S., Schroeder, J., Trefzger, T., Brook, N. H., Bussey, P. J., Doyle, A. T., Fleck, I., Jamieson, V. A., Saxon, D. H., Utley, M. L., Wilson, A. S., Dannemann, A., Holm, U., Horstmann, D., Neumann, T., Sinkus, R., Wick, K., Badura, E., Burow, B. D., Hagge, L., Lohrmann, E., Mainusch, J., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Zetsche, F., Bacon, T. C., Butterworth, I., Gallo, E., Harris, V. L., Hung, B. Y. H., Long, K. R., Miller, D. B., Morawitz, P. P. O., Prinias, A., Sedgbeer, J. K., Whitfield, A. F., Mallik, U., McCliment, E., Wang, M. Z., Wang, S. M., Wu, J. T., Zhang, Y., Cloth, P., Filges, D., An, S. H., Hong, S. M., Nam, S. W., Park, S. K., Suh, M. H., Yon, S. H., Imlay, R., Kartik, S., Kim, H. -I., McNeil, R. R., Metcalf, W., Nadendla, V. K., Barreiro, F., Cases, G., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., del Peso, J., Puga, J., Terron, J., de Trocóniz, I. F., Smith, G. R., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Matthews, C. G., Patel, P. M., Sinclair, L. E., Stairs, D. G., St.Laurent, M., Ullmann, R., Zacek, G., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., Golubkov, Y. A., Kobrin, V. D., Kuzmin, V. A., Proskuryakov, A. S., Savin, A. A., Shcheglova, L. M., Solomin, A. N., Zotov, N. P., Botje, M., Chlebana, F., Dake, A., Engelen, J., de Kamps, M., Kooijman, P., Kruse, A., Tiecke, H., Verkerke, W., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L. S., Honscheid, K., Li, C., Ling, T. Y., McLean, K. W., Murray, W. N., Park, I. H., Romanowski, T. A., Seidlein, R., Bailey, D. S., Blair, G. A., Byrne, A., Cashmore, R. J., Cooper-Sarkar, A. M., Daniels, D., Devenish, R. C. E., Harnew, N., Lancaster, M., Luffman, P. E., Lindemann, L., McFall, J. D., Nath, C., Quadt, A., Uijterwaal, H., Walczak, R., Wilson, F. F., Yip, T., Abbiendi, G., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Butterworth, J. M., Field, R. G., Oh, B. Y., Whitmore, J. J., D'Agostini, G., Marini, G., Nigro, A., Tassi, E., Hart, J. C., McCubbin, N. A., Prytz, K., Shah, T. P., Short, T. L., Barberis, E., Cartiglia, N., Dubbs, T., Heusch, C., Van Hook, M., Hubbard, B., Lockman, W., Rahn, J. T., Sadrozinski, H. F. -W., Seiden, A., Biltzinger, J., Seifert, R. J., Walenta, A. H., Zech, G., Abramowicz, H., Briskin, G., Dagan, S., Levy, A., Hasegawa, T., Hazumi, M., Ishii, T., Kuze, M., Mine, S., Nagasawa, Y., Nakao, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nakamitsu, Y., Yamauchi, K., Cirio, R., Costa, M., Ferrero, M. I., Lamberti, L., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Bandyopadhyay, D., Benard, F., Brkic, M., Crombie, M. B., Gingrich, D. M., Hartner, G. F., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Sampson, C. R., Teuscher, R. J., Catterall, C. D., Jones, T. W., Kaziewicz, P. B., Lane, J. B., Saunders, R. L., Shulman, J., Blankenship, K., Kochocki, J., Lu, B., Mo, L. W., Bogusz, W., Charchuła, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Eisenberg, Y., Karshon, U., Revel, D., Zer-Zion, D., Ali, I., Badgett, W. F., Behrens, B., Dasu, S., Fordham, C., Foudas, C., Goussiou, A., Loveless, R. J., Reeder, D. D., Silverstein, S., Smith, W. H., Vaiciulis, A., Wodarczyk, M., Tsurugai, T., Bhadra, S., Cardy, M. L., Fagerstroem, C. -P., Frisken, W. R., Furutani, K. M., Khakzad, M., and Schmidke, W. B.
Abstract: Charged particle production has been measured in Deep Inelastic Scattering (DIS) events using the ZEUS detector over a large range ofQ2 from 10 to 1280 GeV2. The evolution withQ of the charged multiplicity and scaled momentum has been investigated in the current fragmentation region of the Breit frame. The data are used to study QCD coherence effects in DIS and are compared with correspondinge+e- data in order to test the universality of quark fragmentation.
Published: 1995
Full Text: View/download PDF

15. Neutral strange particle production in deep inelastic scattering at HERA

Author: Derick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R. L., Zhang, H., Ayad, R., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Cara Romeo, G., Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Nemoz, C., Palmonari, F., Polini, A., Sartorelli, G., Timellini, R., Zamora Garcia, Y., Zichichi, A., Bargende, A., Crittenden, J., Desch, K., Diekmann, B., Doeker, T., Eckert, M., Feld, L., Frey, A., Geerts, M., Geitz, G., Grothe, M., Haas, T., Hartmann, H., Heinloth, K., Hilger, E., Jakob, H. -P., Katz, U. F., Mari, S. M., Mass, A., Mengel, S., Mollen, J., Paul, E., Rembser, Ch., Schramm, D., Stamm, J., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Dyce, N., Foster, B., George, S., Gilmore, R., Heath, G. P., Heath, H. F., Llewellyn, T. J., Morgado, C. J. S., Norman, D. J. P., O'Mara, J. A., Tapper, R. J., Wilson, S. S., Yoshida, R., Rau, R. R., Arneodo, M., Iannotti, L., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Cartiglia, N., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Piotrzkowski, K., Zachara, M., Zawiejski, L., Adamezyk, L., Bednarek, B., Jeleń, K., Kisielewska, D., Kowalski, T., Rulikowska-Zarębska, E., Suszycki, L., Zając, J., Kotański, A., Przybycień, M., Bauerdick, L. A. T., Behrens, U., Beier, H., Bienlein, J. K., Coldewey, C., Deppe, O., Desler, K., Drews, G., Flasiński, M., Gilkinson, D. J., Glasman, C., Göttlicher, P., Große-Knetter, J., Gutjahr, B., Hain, W., Hasell, D., Heßling, H., Iga, Y., Joos, P., Kasemann, M., Klanner, R., Koch, W., Köpke, L., Kötz, U., Kowalski, H., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mainusch, J., Mańczak, O., Monteiro, T., Ng, J. S. T., Nickel, S., Notz, D., Ohrenberg, K., Roco, M., Rohde, M., Roldán, J., Schneekloth, U., Schulz, W., Selonke, F., Stiliaris, E., Surrow, B., Voß, T., Westphal, D., Wolf, G., Youngman, C., Zhou, J. F., Grabosch, H. J., Kharchilava, A., Leich, A., Mattingly, M. C. K., Meyer, A., Schlenstedt, S., Wulff, N., Barbagli, G., Pelfer, P., Anzivino, G., Maccarrone, G., De Pasquale, S., Votano, L., Bamberger, A., Eisenhardt, S., Freidhof, A., Söldner-Rembold, S., Schroeder, J., Trefzger, T., Brook, N. H., Bussey, P. J., Doyle, A. T., Fleck, J. I., Saxon, D. H., Utley, M. L., Wilson, A. S., Dannemann, A., Holm, U., Horstmann, D., Neumann, T., Sinkus, R., Wick, K., Badura, E., Burow, B. D., Hagge, L., Lohrmann, E., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Zetsche, F., Bacon, T. C., Butterworth, I., Gallo, E., Harris, V. L., Hung, B. Y. H., Long, K. R., Miller, D. B., Morawitz, P. P. O., Prinias, A., Sedgbeer, J. K., Whitfield, A. F., Mallik, U., McCliment, E., Wang, M. Z., Wang, S. M., Wu, J. T., Zhang, Y., Cloth, P., Filges, D., An, S. H., Hong, S. M., Nam, S. W., Park, S. K., Suh, M. H., Yon, S. H., Imlay, R., Kartik, S., Kim, H. -J., McNeil, R. R., Metcalf, W., Nadendla, V. K., Barreiro, F., Cases, G., Fernandez, J. P., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., Martinez, M., del Peso, J., Puga, J., Terron, J., de Trocóniz, J. F., Smith, G. R., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Matthews, C. G., Patel, P. M., Sinclair, L. E., Stairs, D. G., Laurent, M. St., Ullmann, R., Zacek, G., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., Golubkov, Y. A., Kobrin, V. D., Kuzmin, V. A., Proskuryakov, A. S., Savin, A. A., Shcheglova, L. M., Solomin, A. N., Zotov, N. P., Botje, M., Chlebana, F., Dake, A., Engelen, J., de Kamps, M., Kooijman, P., Kruse, A., Tiecke, H., Verkerke, W., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L. S., Honscheid, K., Li, C., Ling, T. Y., McLean, K. W., Murray, W. N., Park, I. H., Romanowski, T. A., Seidlein, R., Bailey, D. S., Byrne, A., Cashmore, R. J., Cooper-Sarkar, A. M., Devenish, R. C. E., Harnew, N., Lancaster, M., Lindemann, L., McFall, J. D., Nath, C., Noyes, V. A., Quadt, A., Tickner, J. R., Uijterwaal, H., Walczak, R., Waters, D. S., Wilson, F. F., Yip, T., Abbrendi, G., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Butterworth, J. M., Feild, R. G., Oh, B. Y., Whitmore, J. J., D'Agostini, G., Marini, G., Nigro, A., Tassi, E., Hart, J. C., McCubbin, N. A., Prytz, K., Shah, T. P., Short, T. L., Barberis, E., Dubbs, T., Heusch, C., Van Hook, M., Hubbard, B., Lockman, W., Rahn, J. T., Sadrozinski, H. F. -W., Seiden, A., Biltzinger, J., Seifert, R. J., Schwarzer, O., Walenta, A. H., Zech, G., Abramowicz, H., Briskin, G., Dagan, S., Levy, A., Hasegawa, T., Hazumi, M., Ishii, T., Kuze, M., Mine, S., Nagasawa, Y., Nakao, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nakamitsu, Y., Yamauchi, K., Cirio, R., Costa, M., Ferrero, M. I., Lamberti, L., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Bandyopadhyay, D., Benard, F., Brkic, M., Crombie, M. B., Gingrich, D. M., Hartner, G. F., Joo, K. K., Leyman, G. M., Martin, J. F., Orr, R. S., Sampson, C. R., Teuscher, R. J., Catterall, C. D., Jones, T. W., Kaziewicz, P. B., Lane, J. B., Saunders, R. L., Shulman, J., Blankenship, K., Lu, B., Mo, L. W., Bogusz, W., Charchula, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Eisenberg, Y., Karshon, U., Revel, D., Zer-Zion, D., Ali, I., Badgett, W. F., Behrens, B., Dasu, S., Fordham, C., Foudas, C., Goussiou, A., Loveless, R. J., Reeder, D. D., Silverstein, S., Smith, W. H., Vaiciulis, A., Wodarczyk, M., Tsurugai, T., Bhadra, S., Cardy, M. L., Fagerstroem, C. -P., Frisken, W. R., Furutani, K. M., Khakzad, M., and Schmidke, W. B.
Abstract: This paper presents measurements ofK0 and ? production in neutral current, deep inelastic scattering of 26.7 GeV electrons and 820 GeV protons in the kinematic range 102<640 GeV2, 0.00030.04. Average multiplicities forK0 and ? production are determined for transverse momentapT>0.5 GeV and pseudorapidities |?|<1.3. The multiplicities favour a stronger strange to light quark suppression in the fragmentation chain than found ine+e- experiments. The production properties ofK0' s in events with and without a large rapidity gap with respect to the proton direction are compared. The ratio of neutralK0' s to charged particles per event in the measured kinematic range is, within the present statistics, the same in both samples.
Published: 1995
Full Text: View/download PDF

16. Inclusive transverse momentum distributions of charged particles in diffractive and non-diffractive photoproduction at HERA

Author: Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R. L., Zhang, H., Ayad, R., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Romeo, G. Cara, Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Nemoz, C., Palmonari, F., Polini, A., Sartorelli, G., Timellini, R., Garcia, Y. Zamora, Zichichi, A., Bargende, A., Crittenden, J., Desch, K., Diekmann, B., Doeker, T., Eckert, M., Feld, L., Frey, A., Geerts, M., Geitz, G., Grothe, M., Haas, T., Hartmann, H., Haun, D., Heinloth, K., Hilger, E., Jakob, H. -P., Katz, U. F., Mari, S. M., Mass, A., Mengel, S., Mollen, J., Paul, E., Rembser, Ch., Schattevoy, R., Schramm, D., Stamm, J., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Dyce, N., Foster, B., George, S., Gilmore, R., Heath, G. P., Heath, H. F., Llewellyn, T. J., Morgado, C. J. S., Norman, D. J. P., O'Mara, J. A., Tapper, R. J., Wilson, S. S., Yoshida, R., Rau, R. R., Arneodo, M., Iannotti, L., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Cartiglia, N., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Piotrzkowski, K., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Jeleń, K., Kisielewska, D., Kowalski, T., Rulikowska-Zarębska, E., Suszycki, L., Zając, J., Kotański, A., Przybycień, M., Bauerdick, L. A. T., Behrens, U., Beier, H., Bienlein, J. K., Coldewey, C., Deppe, O., Desler, K., Drews, G., Flasiński, M., Gilkinson, D. J., Glasman, C., Göttlicher, P., Große-Knetter, J., Gutjahr, B., Hain, W., Hasell, D., Heßling, H., Iga, Y., Joos, P., Kasemann, M., Klanner, R., Koch, W., Köpke, L., Kötz, U., Kowalski, H., Labs, L., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mańczak, O., Monteiro, T., Ng, J. S. T., Nickel, S., Notz, D., Ohrenberg, K., Roco, M., Rohde, M., Roldán, J., Schneekloth, U., Schulz, W., Selonke, F., Stiliaris, E., Surrow, B., Voß, T., Westphal, D., Wolf, G., Youngman, C., Zhou, J. F., Grabosch, H. J., Kharchilava, A., Leich, A., Mattingly, M. C. K., Meyer, A., Schlenstedt, S., Wulff, N., Barbagli, G., Pelfer, P., Anzivino, G., Maccarrone, G., De Pasquale, S., Votano, L., Bamberger, A., Eisenhardt, S., Freidhof, A., Söldner-Rembold, S., Schroeder, J., Trefzger, T., Brook, N. H., Bussey, P. J., Doyle, A. T., Fleck, J. I., Saxon, D. H., Utley, M. L., Wilson, A. S., Dannemann, A., Holm, U., Horstmann, D., Neumann, T., Sinkus, R., Wick, K., Badura, E., Burow, B. D., Hagge, L., Lohrmann, E., Mainusch, J., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Zetsche, F., Bacon, T. C., Butterworth, I., Gallo, E., Harris, V. L., Hung, B. Y. H., Long, K. R., Miller, D. B., Morawitz, P. P. O., Prinias, A., Sedgbeer, J. K., Whitfield, A. F., Mallik, U., McCliment, E., Wang, M. Z., Wang, S. M., Wu, J. T., Zhang, Y., Cloth, P., Filges, D., An, S. H., Hong, S. M., Nam, S. W., Park, S. K., Suh, M. H., Yon, S. H., Imlay, R., Kartik, S., Kim, H. -J., McNeil, R. R., Metcalf, W., Nadendla, V. K., Barreiro, F., Cases, G., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., del Peso, J., Puga, J., Terron, J., de Trocóniz, J. F., Smith, G. R., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Matthews, C. G., Patel, P. M., Sinclair, L. E., Stairs, D. G., St.Laurent, M., Ullmann, R., Zacek, G., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., Golubkov, Y. A., Kobrin, V. D., Kuzmin, V. A., Proskuryakov, A. S., Savin, A. A., Shcheglova, L. M., Solomin, A. N., Zotov, N. P., Botje, M., Chlebana, F., Dake, A., Engelen, J., de Kamps, M., Kooijman, P., Kruse, A., Tiecke, H., Verkerke, W., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L. S., Honscheid, K., Li, C., Ling, T. Y., McLean, K. W., Murray, W. N., Park, I. H., Romanowski, T. A., Seidlein, R., Bailey, D. S., Blair, G. A., Byrne, A., Cashmore, R. J., Cooper-Sarkar, A. M., Daniels, D., Devenish, R. C. E., Harnew, N., Lancaster, M., Luffman, P. E., Lindemann, L., McFall, J. D., Nath, C., Noyes, V. A., Quadt, A., Uijterwaal, H., Walczak, R., Wilson, F. F., Yip, T., Abbiendi, G., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Butterworth, J. M., Feild, R. G., Oh, B. Y., Whitmore, J. J., D'Agostini, G., Marini, G., Nigro, A., Tassi, E., Hart, J. C., McCubbin, N. A., Prytz, K., Shah, T. P., Short, T. L., Barberis, E., Dubbs, T., Heusch, C., Van Hook, M., Hubbard, B., Lockman, W., Rahn, J. T., Sadrozinski, H. F. -W., Seiden, A., Biltzinger, J., Seifert, R. J., Schwarzer, O., Walenta, A. H., Zech, G., Abramowicz, H., Briskin, G., Dagan, S., Levy, A., Hasegawa, T., Hazumi, M., Ishii, T., Kuze, M., Mine, S., Nagasawa, Y., Nakao, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nakamitsu, Y., Yamauchi, K., Cirio, R., Costa, M., Ferrero, M. I., Lamberti, L., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Bandyopadhyay, D., Benard, F., Brkic, M., Crombie, M. B., Gingrich, D. M., Hartner, G. F., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Sampson, C. R., Teuscher, R. J., Catterall, C. D., Jones, T. W., Kaziewicz, P. B., Lane, J. B., Saunders, R. L., Shulman, J., Blankenship, K., Lu, B., Mo, L. W., Bogusz, W., Charchula, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Eisenberg, Y., Karshon, U., Revel, D., Zer-Zion, D., Ali, I., Badgett, W. F., Behrens, B., Dasu, S., Fordham, C., Foudas, C., Goussiou, A., Loveless, R. J., Reeder, D. D., Silverstein, S., Smith, W. H., Vaiciulis, A., Wodarczyk, M., Tsurugai, T., Bhadra, S., Cardy, M. L., Fagerstroem, C. -P., Frisken, W. R., Furutani, K. M., Khakzad, M., and Schmidke, W. B.
Abstract: Inclusive transverse momentum spectra of charged particles in photoproduction events in the laboratory pseudorapidity range -1.2T=8 GeV usign the ZEUS detector. Diffractive and non-diffractive reactions have been selected with an average ?p centre of mass (c.m.) energy of =180 GeV. For diffractive reactions, thepT spectra of the photon dissociation events have been measured in two intervals of the dissociated photon mass with mean values X>=5 GeV and 10 GeV. The inclusive transverse momentum spectra fall exponentially in the lowpT region. The non-diffractive data show a pronounced highpT tail departing from the exponential shape. ThepT distributions are compared to lower energy photoproduction data and to hadron-hadron collisions at a similar c.m. energy. The data are also compared to the results of a next-to-leading order QCD calculation.
Published: 1995
Full Text: View/download PDF

17. Jet production in highQ2 deep-inelastic ep scattering at HERA

Author: Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R. L., Zhang, H., Avad, R., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Romeo, G. Cara, Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Nemoz, C., Palmonari, E., Polini, A., Sartorelli, G., Timellini, R., Garcia, Y. Zamora, Zichichi, A., Bargende, A., Crittenden, J., Desch, K., Diekmann, B., Doeker, T., Eckert, M., Feld, L., Frey, A., Geerts, M., Geitz, G., Grothe, M., Haas, T., Hartmann, H., Haun, D., Heinloth, K., Hilger, E., Jakob, H. -P., Katz, U. F., Mari, S. M., Mass, A., Mengel, S., Mollen, J., Paul, E., Rembser, Ch., Schattevoy, R., Schramm, D., Stamm, J., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Dyce, N., Foster, B., George, S., Gilmore, R., Heath, G. P., Heath, H. F., Llewellyn, T. J., Morgado, C. J. S., Norman, D. J. P., O'Mara, J. A., Tapper, R. I., Wilson, S. S., Yoshida, R., Rau, R. R., Arneodo, M., Iannotti, L., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Piotrzkowski, K., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Eskreys, K., Jeleń, K., Kisielewska, D., Kowalski, T., Rulikowska-Zarębska, E., Suszycki, L., Zając, J., Kotański, A., Przybycień, M., Bauerdick, I. A. T., Behrens, U., Beier, H., Bienlein, J. K., Coldewey, C., Deppe, O., Desler, K., Drews, G., Flasiński, M., Gilkinson, D. J., Glasman, C., Göttlicher, P., Große-Knetter, J., Gutjahr, B., Hain, W., Hasell, D., Heßling, H., Hultschig, H., Iga, Y., Joos, P., Kasemann, M., Klanner, R., Koch, W., Köpke, L., Kötz, U., Kowalski, H., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mańczak, O., Ng, J. S. T., Nickel, S., Notz, D., Ohrenberg, K., Roco, M., Rohde, M., Roldán, J., Schneekloth, U., Schulz, W., Selonke, F., Stiliaris, E., Surrow, B., Voß, T., Westphal, D., Wolf, G., Youngman, C., Zhou, J. F., Grabosch, H. J., Kharchilava, A., Leich, A., Mattingly, M., Meyer, A., Schlenstedt, S., Wulff, N., Barbagli, G., Pelfer, P., Anzivino, G., Maccarrone, G., De Pasquale, S., Votano, L., Bamberger, A., Eisenhardt, S., Freidhof, A., Söldner-Rembold, S., Schroeder, J., Trefzger, T., Brook, N. H., Bussey, P. J., Doyle, A. T., Fleck, I., Saxon, D. H., Utley, M. L., Wilson, A. S., Dannemann, A., Holm, U., Horstmann, D., Neumann, T., Sinkus, R., Wick, K., Badura, E., Burow, B. D., Hagge, L., Lohrmann, E., Mainusch, J., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Zetsche, F., Bacon, T. C., Butterworth, I., Gallo, E., Harris, V. L., Hung, B. Y. H., Long, K. R., Miller, D. B., Morawitz, P. P. O., Prinias, A., Sedgbeer, J. K., Whitfield, A. F., Mallik, U., McCliment, E., Wang, M. Z., Wang, S. M., Wu, J. T., Zhang, Y., Cloth, P., Filges, D., An, S. H., Hong, S. M., Nam, S. W., Park, S. K., Suh, M. H., Yon, S. H., Imlay, R., Kartik, S., Kim, H. -J., McNeil, R. R., Metcalf, W., Nadendla, V. K., Barreiro, F., Cases, G., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., del Peso, J., Puga, J., Terron, J., de Trocóniz, J. F., Smith, G. R., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Matthews, C. G., Patel, P. M., Sinclair, L. E., Stairs, D. G., Laurent, M. St., Ullmann, R., Zacek, G., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., Golubkov, Y. A., Kobrin, V. D., Kuzmin, V. A., Proskuryakov, A. S., Savin, A. A., Shcheglova, L. M., Solomin, A. N., Zotov, N. P., Botje, M., Chlebana, F., Dake, A., Engelen, J., de Kamps, M., Kooijman, P., Kruse, A., Tiecke, H., Verkerke, W., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L. S., Honscheid, K., Li, C., Ling, T. Y., McLean, K. W., Murray, W. N., Park, I. H., Romanowski, T. A., Seidlein, R., Bailey, D. S., Blair, G. A., Byrne, A., Cashmore, R. J., Cooper-Sarkar, A. M., Daniels, D., Devenish, R. C. E., Harnew, N., Lancaster, M., Luffman, P. E., Lindemann, L., McFall, J. D., Nath, C., Noyes, V. A., Quadt, A., Uijterwaal, H., Walczak, R., Wilson, F. F., Yip, T., Abbiendi, G., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Butterworth, J. M., Feild, R. G., Oh, B. Y., Whitmore, J. J., D'Agostini, G., Marini, G., Nigro, A., Tassi, E., Hart, J. C., McCubbin, N. A., Prytz, K., Shah, T. P., Short, T. L., Barberis, L., Cartiglia, N., Dubbs, T., Heusch, C., Van Hook, M., Hubbard, B., Lockman, W., Rahn, J. T., Sadrozinski, H. F. -W., Seiden, A., Biltzinger, J., Seifert, R. J., Walenta, A. H., Zech, G., Abramowicz, H., Briskin, G., Dagan, S., Levy, A., Hasegawa, T., Hazumi, M., Ishii, T., Kuze, M., Mine, S., Nagasawa, Y., Nakao, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nakamitsu, Y., Yamauchi, K., Cirio, R., Costa, M., Ferrero, M. I., Lamberti, L., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Bandyopadhyay, D., Benard, F., Brkic, M., Crombie, M. B., Gingrich, D. M., Hartner, G. F., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Sampson, C. R., Teuscher, R. J., Catterall, C. D., Jones, T. W., Kaziewicz, P. B., Lane, J. B., Saunders, R. L., Shulman, J., Blankenship, K., Kochocki, J., Lu, B., Mo, L. W., Bogusz, W., Charchula, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Eisenberg, Y., Karshon, U., Revel, D., Zer-Zion, D., Ali, I., Badgett, W. F., Behrens, B., Dasu, S., Fordham, C., Foudas, C., Goussiou, A., Loveless, R. J., Reeder, D. D., Silverstein, S., Smith, W. H., Vaiciulis, A., Wodarczyk, M., Tsurugai, T., Bhadra, S., Cardy, M. L., Fagerstroem, C. -P., Frisken, W. R., Furutani, K. M., Khakzad, M., and Schmidke, W. B.
Abstract: Two-jet production in deep-inelastic electron-proton scattering has been studied for 1602<1280 GeV2, 0.01
Published: 1995
Full Text: View/download PDF

18. The inclusive transverse-momentum distribution in hadronic systems produced in proton-proton collisions

Author: Basile, M., Cara Eomeo, G., Cifarelli, L., Contin, A., D’Alí, G., Cesare, P. Di, Esposito, B., Giusti, P., Massam, T., Nania, E., Palmonari, F., Rossi, V., Sartorelli, G., Spinetti, M., Susinno, G., Valenti, G., Votano, L., and Zichichi, A.
Published: 1981
Full Text: View/download PDF

19. The «leading»-baryon effect in strong, weak, and electromagnetic interactions

Author: Basile, M., Romeo, G. Cara, Cifarelli, L., Contin, A., D’Alí, G., Di Cesare, P., Esposito, B., Giusti, P., Massam, T., Nania, E., Palmonari, F., Rossi, V., Sartorelli, G., Spinetti, M., Susinno, G., Valenti, G., Votano, L., and Zichichi, A.
Abstract: The « leading »-baryon effect is reported. A comparison is made between baryon-baryon and lepton-baryon interactions. The « leading » effect is present in both cases. This shows its relevance for the understanding of hadronic phenomena in strong, weak, and electromagnetic processes.
Published: 1981
Full Text: View/download PDF

20. The transverse-momentum distributions of particles produced in pp reactions and comparison with e+e−

Author: Basile, M., Cara Romeo, G., Cifarelli, L., Contin, A., D'Ali, G., Di Cesare, P., Esposito, B., Giusti, P., Massam, T., Nania, R., Palmonari, F., Sartorelli, G., Spinetti, M., Susinno, G., Valenti, G., Votano, L., and Zichichi, A.
Abstract: Following our previous work, the comparison of the properties of multihadron systems, produced in high-energy pp reactions, with hadron jets produced in e+e−annihilation, is further extended through the study of the inclusive distributions in the «reduced» variablepT/.
Published: 1981
Full Text: View/download PDF

21. Results of the quark search experiment in high-energy neutrino interactions

Author: Basile, M., Berbiers, J., Contin, A., Favale, L., Rohrbach, F., Zichichi, A., Romeo, G. Cara, Cifarelli, L., D’Ali, G., di Cesare, P., Giusti, P., Massam, T., Palmonari, F., Sartorelli, G., Valenti, G., Esposito, B., Spinetti, M., Susinno, G., Votano, L., Laakso, I., Nania, R., and Rossi, V.
Published: 1980
Full Text: View/download PDF

22. Evidence for double-jet structure in pp interactions at √s = 62 GeV

Author: Basile, M., Romeo, G. Cara, Cifarelli, L., Contin, A., D’Ali, G., Di Cesare, P., Esposito, B., Giusti, P., Massam, T., Nania, R., Palmonari, F., Sartorelli, G., Spinetti, M., Susinno, G., Valenti, G., Votano, L., and Zichichi, A.
Published: 1981
Full Text: View/download PDF

23. Single and multiple muon events in the LVD detector

Author: Anzivino, G., Bianco, S., Casaccia, R., Cindolo, F., De Felice, M., Enorini, M., Fabbri, F.L., Laakso, I., Pallante, E., Susinno, G., Votano, L., Zallo, A., Bari, G., Basile, M., Bruni, G., Cara Romeo, G., Cifarelli, L., Contin, A., Del Papa, C., Giusti, P., Iacobucci, G., Maccarrone, G., Massam, T., Nania, R., Sartorelli, G., D'Ali, G., and Zichichi, A.
Abstract: Expected rates of deep-underground muons in the LVD detector, at a vertical depth of 3600 hg/cm2s.r. (standard rock) at the Gran Sasso, were obtained through Monte Carlo simulation. Two different generators were developed to reproduce single and multiple muon distributions at our detector level. The main purpose was to evaluate the potentiality of the apparatus in studying chemical composition and energy spectra of primary cosmic rays in the range 1014–1016eV through the detection of muon bundles of high multiplicity. Sensitivity of the detector was checked by comparing event-rate predictions for three different models of the primary composition: the Maryland spectrum, the “low energy composition” model, and the NUSEX parametrization (with spectral index of iron γFe= 2.60 and 2.70). We predict a single muon rate in the apparatus of about 3.26×106events/year. Preliminary results for multiple muon-event detection show that we can separate with a good sensitivity different primary compositions in the multiplicity region around n= 10.
Published: 1990
Full Text: View/download PDF

24. Observation of events with an energetic forward neutron in deep inelastic scattering at HERA

Author: Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Okrasinski, J.R., Repond, J., Stanek, R., Talaga, R.L., Zhang, H., Mattingly, M.C.K., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Cara Romeo, G., Castellini, G., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Palmonari, F., Polini, A., Sartorelli, G., Zamora Garcia, Y., Zichichi, A., Amelung, C., Bornheim, A., Crittenden, J., Deffner, R., Doeker, T., Eckert, M., Feld, L., Frey, A., Geerts, M., Grothe, M., Hartmann, H., Heinloth, K., Heinz, L., Hilger, E., Jakob, H.-P., Katz, U.F., Mengel, S., Paul, E., Pfeiffer, M., Rembser, Ch., Schramm, D., Stamm, J., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Cottingham, W.N., Dyce, N., Foster, B., George, S., Hayes, M.E., Heath, G.P., Heath, H.F., Piccioni, D., Roff, D.G., Tapper, R.J., Yoshida, R., Arneodo, M., Ayad, R., Capua, M., Garfagnini, A., Iannotti, L., Schioppa, M., Susinno, G., Caldwell, A., Cartiglia, N., Jing, Z., Liu, W., Parsons, J.A., Titz, S., Sciulli, F., Straub, P.B., Wai, L., Yang, S., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Jakubowski, Z., Przybycień, M.B., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Jeleń, K., Kisielewska, D., Kowalski, T., Przybycień, M., Rulikowska-Zarȩbska, E., Suszycki, L., Zaja̧c, J., Duliński, Z., Kotański, A., Abbiendi, G., Bauerdick, L.A.T., Behrens, U., Beier, H., Bienlein, J.K., Cases, G., Deppe, O., Desler, K., Drews, G., Flasiński, M., Gilkinson, D.J., Glasman, C., Göttlicher, P., Große-Knetter, J., Haas, T., Hain, W., Hasell, D., Heßling, H., Iga, Y., Johnson, K.F., Joos, P., Kasemann, M., Klanner, R., Koch, W., Kötz, U., Kowalski, H., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mainusch, J., Mańczak, O., Milewski, J., Monteiro, T., Ng, J.S.T., Notz, D., Ohrenberg, K., Poitrzkowski, K., Roco, M., Rohde, M., Roldán, J., Schneekloth, U., Schulz, W., Selonke, F., Surrow, B., Voß, T., Westphal, D., Wolf, G., Wollmer, U., Youngman, C., Zeuner, W., Grabosch, H.J., Kharchilava, A., Mari, S.M., Meyer, A., Schlenstedt, S., Wulff, N., Barbagli, G., Gallo, E., Pelfer, P., Maccarrone, G., De Pasquale, S., Votano, L., Bamberger, A., Eisenhardt, S., Trefzger, T., Wölfle, S., Bromley, J.T., Brook, N.H., Bussey, P.J., Doyle, A.T., Saxon, D.H., Sinclair, L.E., Utley, M.L., Wilson, A.S., Dannemann, A., Holm, U., Horstmann, D., Sinkus, R., Wick, K., Burow, B.D., Hagge, L., Lohrmann, E., Poelz, G., Schott, W., Zetsche, F., Bacon, T.C., Brümmer, N., Butterworth, I., Harris, V.L., Howell, G., Hung, B.H.Y., Lamberti, L., Long, K.R., Miller, D.B., Pavel, N., Prinias, A., Sedgbeer, J.K., Sideris, D., Whitfield, A.F., Mallik, U., Wang, M.Z., Wang, S.M., Wu, J.T., Cloth, P., Filges, D., An, S.H., Cho, G.H., Ko, B.J., Lee, S.B., Nam, S.W., Park, H.S., Park, S.K., Kartik, S., Kim, H.-J., McNeil, R.R., Metcalf, W., Nadendla, V.K., Barreiro, F., Fernandez, J.P., Graciani, R., Hernández, J.M., Hervás, L., Labarga, L., Martinez, M., del Peso, J., Puga, J., Terron, J., de Trocóniz, J.F., Corriveau, F., Hanna, D.S., Hartmann, J., Hung, L.W., Lim, J.N., Matthews, C.G., Patel, P.M., Riveline, M., Stairs, D.G., St-Laurent, M., Ullmann, R., Zacek, G., Tsurugai, T., Bashkirov, V., Dolgoshein, B.A., Stifutkin, A., Bashindzhagyan, G.L., Ermolov, P.F., Gladilin, L.K., Golubkov, Yu.A., Kobrin, V.D., Korzhavina, I.A., Kuzmin, V.A., Lukina, O.Yu., Proskuryakov, A.S., Savin, A.A., Shcheglova, L.M., Solomin, A.N., Zotov, N.P., Botje, M., Chlebana, F., Engelen, J., de Kamps, M., Kooijman, P., Kruse, A., van Sighem, A., Tiecke, H., Verkerke, W., Vossebeld, J., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L.S., Gilmore, J., Li, C., Ling, T.Y., Nylander, P., Park, I.H., Romanowski, T.A., Bailey, D.S., Cashmore, R.J., Cooper-Sarkar, A.M., Devenish, R.C.E., Harnew, N., Lancaster, M., Lindemann, L., McFall, J.D., Nath, C., Noyes, V.A., Quadt, A., Tickner, J.R., Uijterwaal, H., Walczak, R., Waters, D.S., Wilson, F.F., Yip, T., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Zuin, F., Bulmahn, J., Feild, R.G., Oh, B.Y., Whitmore, J.J., D'Agostini, G., Marini, G., Nigro, A., Tassi, E., Hart, J.C., McCubbin, N.A., Shah, T.P., Barberis, E., Dubbs, T., Heusch, C., Van Hook, M., Lockman, W., Rahn, J.T., Sadrozinski, H.F.-W., Seiden, A., Williams, D.C., Biltzinger, J., Seifert, R.J., Schwarzer, O., Walenta, A.H., Zech, G., Abramowicz, H., Briskin, G., Dagan, S., Levy, A., Fleck, J.I., Inuzuka, M., Ishii, T., Kuze, M., Mine, S., Nakao, M., Suzuki, I., Tokushuku, K., Umemori, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Matsushita, T., Yamauchi, K., Cirio, R., Costa, M., Ferrero, M.I., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D.C., Benard, F., Brkic, M., Fagerstroem, C.-P., Hartner, G.F., Joo, K.K., Levman, G.M., Martin, J.F., Orr, R.S., Polenz, S., Sampson, C.R., Simmons, D., Teuscher, R.J., Butterworth, J.M., Catterall, C.D., Jones, T.W., Kaziewicz, P.B., Lane, J.B., Saunders, R.L., Shulman, J., Sutton, M.R., Lu, B., Mo, L.W., Bogusz, W., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R.J., Pawlak, J.M., Tymieniecka, T., Wróblewski, A.K., Zakrzewski, J.A., Żarnecki, A.F., Adamus, M., Coldewey, C., Eisenberg, Y., Hochman, D., Karshon, U., Revel, D., Zer-Zion, D., Badgett, W.F., Breitweg, J., Chapin, D., Cross, R., Dasu, S., Foudas, C., Loveless, R.J., Mattingly, S., Reeder, D.D., Silverstein, S., Smith, W.H., Vaiciulis, A., Wodarczyk, M., Bhadra, S., Cardy, M.L., Fagerstroem, C.-P., Frisken, W.R., Furutani, K.M., Khakzad, M., Murray, W.N., and Schmidke, W.B.
Abstract: In deep inelastic neutral current scattering of positrons and protons at the center of mass energy of 300 GeV, we observe, with the ZEUS detector, events with a high energy neutron produced at very small scattering angles with respect to the proton direction. The events constitute a fixed fraction of the deep inelastic, neutral current event sample independent of Bjorken xand Q2in the range 3 · 10−4< xBJ< 6 · 10−3and 10 < Q2< 100 GeV2.
Published: 1996
Full Text: View/download PDF

25. Dijet angular distributions in direct and resolved photoproduction at HERA

Author: Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Okrasinski, J.R., Repond, J., Stanek, R., Talaga, R.L., Zhang, H., Mattingly, M.C.K., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Cara Romeo, G., Castellini, G., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Palmonari, F., Polini, A., Sartorelli, G., Zamora Garcia, Y., Zichichi, A., Amelung, C., Bornheim, A., Crittenden, J., Deffner, R., Doeker, T., Eckert, M., Feld, L., Frey, A., Geerts, M., Grothe, M., Hartmann, H., Heinloth, K., Heinz, L., Hilger, E., Jakob, H.-P., Katz, U.F., Mengel, S., Paul, E., Pfeiffer, M., Rembser, Ch., Schramm, D., Stamm, J., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Cottingham, W.N., Dyce, N., Foster, B., George, S., Hayes, M.E., Heath, G.P., Heath, H.F., Piccioni, D., Roff, D.G., Tapper, R.J., Yoshida, R., Arneodo, M., Ayad, R., Capua, M., Garfagnini, A., Iannotti, L., Schioppa, M., Susinno, G., Caldwell, A., Cartiglia, N., Jing, Z., Liu, W., Parsons, J.A., Ritz, S., Sciulli, F., Straub, P.B., Wai, L., Yang, S., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Jakubowski, Z., Przybycień, M.B., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Jeleń, K., Kisielewska, D., Kowalski, T., Przybycień, M., Rulikowska-Zarȩbska, E., Suszycki, L., Zaja̧c, J., Duliński, Z., Kotański, A., Abbiendi, G., Bauerdick, L.A.T., Behrens, U., Beier, H., Bienlein, J.K., Cases, G., Deppe, O., Desler, K., Drews, G., Flasiński, M., Gilkinson, D.J., Glasman, C., Göttlicher, P., Große-Knetter, J., Haas, T., Hain, W., Hasell, D., Heßling, H., Iga, Y., Johnson, K.F., Joos, P., Kasemann, M., Klanner, R., Koch, W., Kötz, U., Kowalski, H., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mainusch, J., Mańczak, O., Milewski, J., Monteiro, T., Ng, J.S.T., Notz, D., Ohrenberg, K., Piotrzkowski, K., Roco, M., Rohde, M., Roldán, J., Schneekloth, U., Schulz, W., Selonke, F., Surrow, B., Voß, T., Westphal, D., Wolf, G., Wollmer, U., Youngman, C., Zeuner, W., Grabosch, H.J., Kharchilava, A., Mari, S.M., Meyer, A., Schlenstedt, S., Wulff, N., Barbagli, G., Gallo, E., Pelfer, P., Maccarrone, G., De Pasquale, S., Votano, L., Bamberger, A., Eisenhardt, S., Trefzger, T., Wölfle, S., Bromley, J.T., Brook, N.H., Bussey, P.J., Doyle, A.T., Saxon, D.H., Sinclair, L.E., Utley, M.L., Wilson, A.S., Dannemann, A., Holm, U., Horstmann, D., Sinkus, R., Wick, K., Burow, B.D., Hagge, L., Lohrmann, E., Poelz, G., Schott, W., Zetsche, F., Bacon, T.C., Brümmer, N., Butterworth, I., Harris, V.L., Howell, G., Hung, B.H.Y., Lamberti, L., Long, K.R., Miller, D.B., Pavel, N., Prinias, A., Sedgbeer, J.K., Sideris, D., Whitfield, A.F., Mallik, U., Wang, M.Z., Wang, S.M., Wu, J.T., Cloth, P., Filges, D., An, S.H., Cho, G.H., Ko, B.J., Lee, S.B., Nam, S.W., Park, H.S., Park, S.K., Kartik, S., Kim, H.-J., McNeil, R.R., Metcalf, W., Nadendla, V.K., Barreiro, F., Fernandez, J.P., Graciani, R., Hernández, J.M., Hervás, L., Labarga, L., Martinez, M., del Peso, J., Puga, J., Terron, J., de Trocóniz, J.F., Corriveau, F., Hanna, D.S., Hartmann, J., Hung, L.W., Lim, J.N., Matthews, C.G., Patel, P.M., Riveline, M., Stairs, D.G., St-Laurent, M., Ullmann, R., Zacek, G., Tsurugai, T., Bashkirov, V., Dolgoshein, B.A., Stifutkin, A., Bashindzhagyan, G.L., Ermolov, P.F., Gladilin, L.K., Golubkov, Yu.A., Kobrin, V.D., Korzhavina, I.A., Kuzmin, V.A., Lukina, O.Yu., Proskuryakov, A.S., Savin, A.A., Shcheglova, L.M., Solomin, A.N., Zotov, N.P., Botje, M., Chlebana, F., Engelen, J., de Kamps, M., Kooijman, P., Kruse, A., van Sighem, A., Tiecke, H., Verkerke, W., Vossebeld, J., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L.S., Gilmore, J., Li, C., Ling, T.Y., Nylander, P., Park, I.H., Romanowski, T.A., Bailey, D.S., Cashmore, R.J., Cooper-Sarkar, A.M., Devenish, R.C.E., Harnew, N., Lancaster, M., Lindemann, L., McFall, J.D., Nath, C., Noyes, V.A., Quadt, A., Tickner, J.R., Uijterwaal, H., Walczak, R., Waters, D.S., Wilson, F.F., Yip, T., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Zuin, F., Bulmahn, J., Feild, R.G., Oh, B.Y., Whitmore, J.J., D'Agostini, G., Marini, G., Nigro, A., Tassi, E., Hart, J.C., McCubbin, N.A., Shah, T.P., Barberis, E., Dubbs, T., Heusch, C., Van Hook, M., Lockman, W., Rahn, J.T., Sadrozinski, H.F.-W., Seiden, A., Williams, D.C., Biltzinger, J., Seifert, R.J., Schwarzer, O., Walenta, A.H., Zech, G., Abramowicz, H., Briskin, G., Dagan, S., Levy, A., Fleck, J.I., Inuzuka, M., ishii, T., Kuze, M., Mine, S., Nakao, M., Suzuki, I., Tokushuku, K., Umemori, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Matsushita, T., Yamauchi, K., Cirio, R., Costa, M., Ferrero, M.I., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staino, A., Dardo, M., Bailey, D.C., Benard, F., Brkic, M., Fagerstroem, C.-P., Hartner, G.F., Joo, K.K., Levman, G.M., Martin, J.F., Orr, R.S., Polenz, S., Sampson, C.R., Simmons, D., Teuscher, R.J., Butterworth, J.M., Catterall, C.D., Jones, T.W., Kaziewicz, P.B., Lane, J.B., Saunders, R.L., Shulman, J., Sutton, M.R., Lu, B., Mo, L.W., Bogusz, W., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R.J., Pawlak, J.M., Tymieniecka, T., Wróblewski, A.K., Zakrzewski, J.A., Żarnecki, A.F., Adamus, M., Coldewey, C., Eisenberg, Y., Hochman, D., Karshon, U., Revel, D., Zer-Zion, D., Badgett, W.F., Breitweg, J., Chapin, D., Cross, R., Dasu, S., Foudas, C., Loveless, R.J., Mattingly, S., Reeder, D.D., Silverstein, S., Smith, W.H., Vaiciulis, A., Wodarczyk, M., Bhadra, S., Cardy, M.L., Frisken, W.R., Khakzad, M., Murray, W.N., and Schmidke, W.B.
Abstract: Jet photoproduction, where the two highest transverse energy (ETjet) jets have ETjetabove 6 GeV and a jet-jet invariant mass above 23 GeV, has been studied with the ZEUS detector at the HERA epcollider. Resolved and direct photoproduction samples have been separated. The cross section as a function of the angle between the jet-jet axis and the beam direction in the dijet rest frame has been measured for the two samples. The measured angular distributions differ markedly from each other. They agree with the predictions of QCD calculations, where the different angular distributions reflect the different spins of the quark and gluon exchanged in the hard subprocess.
Published: 1996
Full Text: View/download PDF

26. Measurement of the proton structure function F2in ep scattering at HERA

Author: Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Repond, S., Stanek, R., Talaga, R.L., Thron, J., Arzarello, F., Ayad, R., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Cara Romero, G., Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Ciralli, F., Contin, A., D'Auria, S., Del Papa, C., Frasconi, F., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Lin, O., Losowski, B., Maccarrone, G., Margotti, A., Massam, T., Monaldi, D., Nania, R., Nemoz, C., Palmonari, F., Sartorelli, G., Timellini, R., Zamora Garcia, Y., Zichini, A., Bargende, A., Crittenden, J., Desch, K., Diekmann, B., Doeker, T., Frey, A., Geerts, M., Geitz, G., Hartmann, H., Haun, D., Heinloth, K., Hilger, E., Jacob, H.-P., Kramaczyk, S., Kückes, M., Mass, A., Mengel, S., Mollen, J., Müsch, H., Paul, E., Schattevoy, R., Schneider, J.-L., Schramm, D., Wedemeyer, R., Cassidy, A., Cussans, D.G., Dyce, N., Foster, B., George, S., Gilmore, R., Heath, G.P., Heath, H.F., Lancaster, M., Llwellyn, T.J., Morgado, C.J.S., O'Mara, J.A., Tapper, R.J., Wilson, S.S., Yoshida, R., Rau, R.R., Arneodo, M., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Gialas, I., Parsons, J.A., Ritz, S., Sciulli, F., Straub, P.B., Wai, L., Yang, S., Borzemski, P., Chwastowski, J., Dwuraźny, A., Eskreys, A., Jakubowski, Z., Nizioł, B., Piotrzkowski, K., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Eskreys, K., Jeleń, K., Kisielewska, D., Kowalski, T., Rulikowska-Zarȩbska, E., Suszycki, L., Zaja̧c, J., Kȩdzierski, T., Kotański, A., Przybycień, M., Bauerdick, L.A.T., Behrens, U., Bienlein, J.K., Böttcher, S., Coldewey, C., Dannemann, A., Drews, G., Erhard, P., Flasiński, M., Fleck, I., Gilkinson, D.J., Gläser, R., Göttlicher, P., Gutjahr, B., Haas, T., Hagge, L., Hain, W., Hasell, D., Hultschig, H., Jahnen, G., Joos, P., Kasemann, M., Klanner, R., Koch, W., Köpke, L., Kötz, U., Kowalski, H., Kröger, W., Krüger, J., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mainusch, J., Mańczak, O., Momayezi, M., Ng, J.S.T., Nickel, S., Notz, D., Pösnecker, K.-U., Rohde, M., Roldán, J., Ros, E., Schneekloth, U., Schroeder, J., Schulz, W., Selonke, F., Stiliaris, E., Tscheslog, E., Tsurugai, T., Vogel, W., Westphal, D., Wolf, G., Youngman, C., Grabosch, H.J., Leich, A., Meyer, A., Rethfeldt, C., Schlenstedt, S., Barbagli, G., Francescato, A., Nuti, M., Pelfer, P., Anzivino, G., Casaccia, R., De Pasquale, S., Qian, S., Votano, L., Bamberger, A., Freidhof, A., Poser, T., Söldner-Rembold, S., Theisen, G., Trefzger, T., Brook, N.H., Bussey, P.J., Doyle, A.T., Forbes, J.R., Jamieson, V.A., Raine, C., Saxon, D.H., Brückmann, H., Gloth, G., Holm, U., Kammerlocher, H., Krebs, B., Neumann, T., Wick, K., Fürtjes, A., Lohrmann, E., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Terron, J., Zetsche, F., Bacon, T.C., Beuselinck, R., Butterworth, I., Gallo, E., Harris, V.L., Miller, D.B., Prinias, A., Sedgbeer, J.K., Vorvolakos, A., Whitfield, A., Bienz, T., Kreutzmann, H., Mallik, U., McCliment, E., Roco, M., Wang, M.Z., Cloth, P., Filges, D., An, S.H., Hong, S.M., Kim, C.O., Kim, T.Y., Nam, S.W., Park, S.K., Suh, M.H., Yon, S.H., Imlay, R., Kartik, S., Kim, H.-J., McNeil, R.R., Metcalf, W., Nadendla, V.K., Barreiro, F., Cases, G., Hervás, L., Labarga, L., del Peso, J., de Trocóniz, J.F., Ikraiam, F., Mayer, J.K., Smith, G.R., Corriveau, F., Hanna, D.S., Hartmann, J., Hung, L.W., Lim, J.N., Meijer Drees, R., Matthews, C., Mitchell, J.W., Patel, P.M., Sinclair, L.E., Stairs, D.G., St.Laurent, M., Ullmann, R., Bashindzhagyan, G.L., Ermolov, P.F., Gladilin, L.K., Golubkov, Y.A., Kuzmin, V.A., Kuznetsov, E.N., Savin, A.A., Voronin, A.G., Zotov, N.P., Bentvelsen, S., Botje, M., Dake, A., Engelen, J., de Jong, P., de Kamps, M., Kooijman, P., Kruse, A., van der Lugt, H., O'Dell, V., Tenner, A., Tiecke, H., Uijterwaal, H., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Bylsma, B., Durkin, L.S., Honscheid, K., Li, C., Ling, T.Y., McLean, K.W., Murray, W.N., Park, I.H., Romanowski, T.A., Seidlein, R., Blair, G.A., Byrne, A., Cashmore, R.J., Cooper-Sarkar, A.M., Devenish, R.C.E., Gingrich, D.M., Hallam-Baker, P.M., Harnew, N., Khatri, T., Long, K.R., Luffman, P., McArthur, I., Morawitz, P., Nash, J., Smith, S.J.P., Roocroft, N.C., Wilson, F.F., Abbiendi, G., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Gasparini, F., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Butterworth, J.M., Bulmahn, J., Feild, G., Oh, B.Y., Whitmore, J., Contino, U., D'Agostini, G., Guida, M., Iori, M., Mari, S.M., Marini, G., Mattioli, M., Nigro, A., Hart, J.C., McCubbin, N.A., Prytz, K., Shah, T.P., Short, T.L., Barberis, E., Cartiglia, N., Heusch, C., Hubbard, B., Leslie, J., Lockman, W., O'Shaughnessy, K., Sadrozinski, H.F., Seiden, A., Zer-Zion, D., Badura, E., Biltzinger, J., Seifert, R.J., Walenta, A.H., Zech, G., Dagan, S., Levy, A., Hasegawa, T., Hazumi, M., Ishii, T., Kasai, S., Kuze, M., Mine, S., Nagasawa, Y., Nagira, T., Nakao, M., Okuno, H., Suzuki, I., Tokushuku, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nagayama, S., Nakamitsu, Y., Cirio, R., Costa, M., Ferrero, M.I., Lamberti, L., Maselli, S., Peroni, C., Solano, A., Sacchi, R., Staiano, A., Dardo, M., Bailey, D.C., Bandyopadhyay, D., Bernard, F., Bhadra, S., Brkic, M., Burow, B.D., Chlebana, F.S., Crombie, M.B., Hartner, G.F., Levman, G.M., Martin, J.F., Orr, R.S., Prentice, J.D., Sampson, C.R., Stairs, G.G., Teuscher, R.J., Yoon, T.-S., Bullock, F.W., Catterall, C.D., Giddings, J.C., Jones, T.W., Khan, A.M., Lane, J.B., Makkar, P.L., Shaw, D., Shulman, J., Blankenship, K., Kochocki, J., Lu, B., Mo, L.W., Charchuła, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyanowski, M., Muchorowski, K., Nowak, R.J., Pawlak, J.M., Stopczyński, A., Tymieniecka, T., Walczak, R., Wróblewski, A.K., Zakrzewski, J.A., arnecki, A.F., Adamus, M., Abramowicz, H., Eisenberg, Y., Glasman, C., Karshon, U., Montag, A., Revel, D., Shapira, A., Foudas, C., Fordham, C., Loveless, R.J., Goussiou, A., Ali, I., Behrens, B., Dasu, S., Reeder, D.D., Smith, W.H., Silverstein, S., Frisken, W.R., Furutani, K.M., and Iga, Y.
Abstract: This paper presents our first measurement of the F2structure function in neutral-current, deep inelastic scattering using the ZEUS detector at HERA, the epcolliding beam facility at DESY. The data correspond to an integrated luminosity of 24.7 nb−1. Results are presented for data in range of Q2from 10 GeV2to 4700 GeV2and Bjorken xdown to 3.0 × 10−4. The F2structure function increases rapidly as xdecreases.
Published: 1993
Full Text: View/download PDF

27. A study of possible new heavy-flavour production at the CERN (pp) Collider

Author: Basile, M., Berbiers, J., Bonvicini, G., Eomeo, G. Cara, Cifaeelli, L., Contin, A., Curatolo, M., D’Alí, G., Del Papa, C., Esposito, B., Giusti, P., Massam, T., Nania, R., Palmonari, F., Sartorelli, G., Susinno, G., Votano, L., and Zichichi, A.
Abstract: In this paper, we review briefly the main hypotheses and extrapolations used to predict the observability of new heavy flavours at the CERN (pp) collider. Some results from this study are compared with the first experimental data on the production of high-pTelectrons accompained by hadronic « jets » at the (pp) collider, as observed by the UA1 collaboration. These events could, in fact, be the signature of the semi-leptonic decay of a very massive new heavy-flavoured state. Its « downlike » or « uplike » nature cannot be established in a direct and unambiguous way. More sophisticated measurements are needed as discussed in detail in a previous paper.
Published: 1983
Full Text: View/download PDF

28. Studies of two-particle correlation in rapidity space in (pp) collisions at (√8)pp= 30, 44 and 62 GeV

Author: Berbiers, J., Bonvicini, G., Romeo, G. Cara, Cifarelli, L., Contin, A., Curatolo, M., D’Alí, G., Del Papa, C., Esposito, B., Giusti, P., Massam, T., Nania, R., Palmonari, F., Sartorelli, G., Susinno, G., Votano, L., and Zichichi, A.
Abstract: Two-particle correlations in rapidity space in (pp) collisions are reported, using the leading-proton subtraction method. The study is performed at different values of the nominal cm. (pp) total energy (√8)pp= 30, 44 and 62 GeV. The dependence of the correlation functionR(y, y′)aty=y′=0,vs.the effective hadron energy available for particle production, is reported.
Published: 1983
Full Text: View/download PDF

29. Evidence for the same two-particle correlations in rapidity space in (pp) collisions and (e+e-) annihilation

Author: Berbiers, J., Bonvicini, G., Cara Romeo, G., Cifarelli, L., Contin, A., Curatolo, M., D’Alí, G., Del Papa, C., Esposito, B., Giusti, P., Massam, T., Nania, R., Natale, G., Palmonari, F., Sartorelli, G., Susinno, G., Votano, L., and Zichichi, A.
Abstract: Evidence is reported for the same two-particle correlations in rapidity space in soft, high-energy (pp) collisions and (e+e-) annihilation when the leading baryons’ effects are taken into account.
Published: 1983
Full Text: View/download PDF

30. Measurement of forward and backward mean charged-particle multiplicities in high-energy (pp) soft interactions and comparison with high-energy neutrino and antineutrino deep inelastic scattering

Author: Bonvicini, G., Cara Romeo, G., Cifarelli, L., Contin, A., Curatolo, M., D’Alí, G., Del Papa, C., Esposito, B., Giusti, P., Massam, T., Nania, R., Sartorelli, G., Susinno, G., Votano, L., and Zichichi, A.
Abstract: The difference between forward and backward mean charged-particle multiplicities is shown to exist also in (pp) interactions, when these are analysed in analogy with the deep inelastic scattering method. The measurements reported here show that this difference, which has been observed for a long time in (vp) and (vp) deep inelastic scattering experiments, is explained in terms of the omitted correction for the leading effect in the backward hemisphere.
Published: 1983
Full Text: View/download PDF

31. Deep inelastic scattering and soft (pp) interactions: A comparison

Author: Basile, M., Bonvicini, G., Cara Romeo, G., Cifarelli, L., Contin, A., Curatolo, M., D’Alí, G., Del Papa, C., Esposito, B., Giusti, P., Massam, T., Nania, R., Palmonari, F., Sartorelli, G., Susinno, G., Votano, L., and Zichichi, A.
Abstract: A comparison between the average charged-particle multiplicities measured in (vp) deep-inelastic scattering (DIS) and in soft (pp) interactions shows that a remarkable agreement can be established between these two processes, so far considered drastically different. This agreement can be observed when soft (pp) data are treated in a way which is analogous to the (vp) DIS data. The (pp) data cover a W2range from 100 to 500 (GeV)2.
Published: 1983
Full Text: View/download PDF

32. Transverse properties of jets at Collider energies from ISR data

Author: Basile, M., Bonvicini, G., Cara Romeo, G., Cifarelli, L., Contin, A., Curatolo, M., D'Alí, G., Del Papa, C., Esposito, B., Giusti, P., Massam, T., Nania, R., Palmonari, F., Sartorelli, G., Susinno, G., Votano, L., and Zichichi, A.
Abstract: The universality features observed in comparing ISR data with (e+e−) and deep-inelastic scattering (DIS), prompt a comparison, at Collider energies, of high-pTand low-pTjets with constant. The expectations of the transverse properties of the particles in the jets are discussed.
Published: 1983
Full Text: View/download PDF

33. The leading effect explains the forward-backward multiplicity correlations in hadronic interactions

Author: Basile, M., Bonvicini, G., Romeo, G. Cara, Cifarelli, L., Contin, A., Curatolo, M., D'Alí, G., Del Papa, C., Esposito, B., Giusti, P., Massam, T., Nania, R., Palmonari, F., Sartorelli, G., Susinno, G., Votano, L., and Zichichi, A.
Abstract: The multiplicity correlations between forward and backward hemispheres observed since a long time in (pp) interactions at the CERN Intersecting Storage Rings (ISR), are shown to be due to the leading effect. These multiplicity correlations are reproduced following our method of classifying each (pp) interaction in terms of the effective hadronic energy available. It is this energy, and not the long-range correlation, which produces low or high multiplicities in both hemispheres of a (pp) collision. The (logs)-dependence of the correlation strength follows from the energy dependence of the multiplicity. The (logs)-dependence is shown to follow our prediction from FNAL and SPS, to ISR, and up to Collider energies.
Published: 1983
Full Text: View/download PDF

34. Measurement of the diffractive structure functionF2D(4)at HERA

Author: Breitweg, J., Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R., Yoshida, R., Zhang, H., Mattingly, M., Anselmo, F., Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Romeo, G., Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., Pasquale, S., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Nemoz, C., Palmonari, F., Pesci, A., Polini, A., Ricci, F., 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., Katz, U., Kerger, R., Paul, E., Pfeiffer, M., Rembser, Ch., Stamm, J., Wedemeyer, R., Wieber, H., Bailey, D., Campbell-Robson, S., Cottingham, W., Foster, B., Hall-Wilton, R., Hayes, M., Heath, G., Heath, H., McFall, J., Piccioni, D., Roff, D., Tapper, R., Arneodo, M., Ayad, R., Capua, M., Garfagnini, A., Iannotti, L., Schioppa, M., Susinno, G., Kim, J., Lee, J., Lim, L., Pac, M., Caldwell, A., Cartiglia, N., Jing, Z., Liu, W., Mellado, B., Parsons, J., Ritz, S., Sampson, S., Sciulli, F., Straub, P., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Figiel, J., Klimek, K., Przybycień, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Bukowy, M., Jeleń, K., Kisielewska, D., Kowalski, T., Przybycień, M., Rulikowska-Zareebska, E., Suszycki, L., Zajac, J., Duliński, Z., Kotański, A., Abbiendi, G., Bauerdick, L., Behrens, U., Beier, H., Bienlein, J., Cases, G., Deppe, O., Desler, K., Drews, G., Fricke, U., Gilkinson, D., Glasman, C., Göttlicher, P., Haas, T., Hain, W., Hasell, D., Johnson, K., Kasemann, M., Koch, W., Kötz, U., Kowalski, H., Labs, J., Lindemann, L., Löhr, B., Löwe, M., Mańczak, O., Milewski, J., Monteiro, T., Ng, J., Notz, D., Ohrenberg, K., Park, I., Pellegrino, A., Pelucchi, F., Piotrzkowski, K., Roco, M., Rohde, M., Roldán, J., Ryan, J., Savin, A., Schneekloth, U., Selonke, F., Surrow, B., Tassi, E., Voß, T., Westphal, D., Wolf, G., Wollmer, U., Youngman, C., Zarnecki, A., Zeuner, W., Burow, B., Grabosch, H., Meyer, A., Schlenstedt, S., Barbagli, G., Gallo, E., Pelfer, P., Anzivino, G., Maccarrone, G., Votano, L., Barberger, A., Eisenhardt, S., Markun, P., Trefzger, T., Wölfle, S., Bromley, J., Brook, N., Bussey, P., Doyle, A., Macdonald, N., Saxon, D., Sinclair, L., Strickland, E., Waugh, R., Bohnet, I., Gendner, N., Holm, U., Meyer-Larsen, A., Salchi, H., Wick, K., Gladilin, L., Horstmann, D., Kçira, D., Klanner, R., Lohrmann, E., Poelz, G., Schott, W., Bacon, T., Butterworth, I., Cole, J., Howell, G., Hung, B., Lamberti, L., Long, K., Prinias, A., Sedgbeer, J., Sideris, D., Mallik, U., Wang, S., Wu, J., Cloth, P., Filges, D., Fleck, J., Ishii, T., Kuze, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamauchi, K., Yamazaki, Y., Hong, S., Lee, S., Nam, S., Park, S., Barreiro, F., Fernández, J., García, G., Graciani, R., Hernández, J., Hervás, L., Labarga, L., Martínez, M., Peso, J., Puga, J., Terrón, J., Trocóniz, J., Corriveau, F., Hanna, D., Hartmann, J., Hung, L., Murray, N., Ochs, A., Riveline, M., Stairs, D., St-Laurent, M., Ullmann, R., Tsurugai, T., Bashkirov, V., Dolgoshein, B., Stifutkin, A., Bashindzhagyan, G., Ermolov, P., Golubkov, Yu., Khein, L., Korotkova, N., Korzhavina, I., Kuzmin, V., Lukina, O., Proskuryakov, A., Shcheglova, L., Solomin, A., Zotkin, S., Bokel, C., Botje, M., Brummer, N., Chlebana, F., Engelen, J., Koffeman, E., Kooijman, P., Sighem, A., Tiecke, H., Tuning, N., Verkerke, W., Vossebeld, J., Vreeswijk, M., Wiggers, L., Wolf, E., Acosta, D., Bylsma, B., Durkin, L., Gilmore, J., Ginsburg, C., Kim, C., Ling, T., Nylander, P., Romanowski, T., Blaikley, H., Cashmore, R., Cooper-Sarkar, A., Devenish, R., Edmonds, J., Große-Knetter, J., Harnew, N., Lancaster, M., Nath, C., Noyes, V., Quadt, A., Ruske, O., Tickner, J., Uijterwaal, H., Walczak, R., Waters, D., Bertolin, A., Bruguera, R., Carlin, R., Corso, F., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Oh, B., Okrasinski, J., Toothacker, W., Whitmore, J., Iga, Y., D'Agostini, G., Marini, G., Nigro, A., Raso, M., Hart, J., McCubbin, N., Shah, T., Barberis, E., Epperson, D., Heusch, C., Rahn, J., Sadrozinski, H., Seiden, A., Wichmann, R., Williams, D., Schwarzer, O., Walenta, A., 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., Cirio, R., Costa, M., Ferrero, M., Maselli, S., Monaco, V., Peroni, C., Petrucci, M., Ruspa, M., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D., Fagerstroem, C., Galea, R., Hartner, G., Joo, K., Levman, G., Martin, J., Orr, R., Polenz, S., Sabetfakhri, A., Simmons, D., Teuscher, R., Butterworth, J., Catterall, C., Jones, T., Lane, J., Saunders, R., Shulman, J., Sutton, M., Wing, M., Ciborowski, J., Grzelak, G., Kasprzak, M., Muchorowski, K., Nowak, R., Pawlak, J., Pawlak, R., Tymieniecka, T., Wróblewski, A., Zakrzewski, J., Adamus, M., Coldewey, C., Eisenberg, Y., Hochman, D., Karshon, U., Badgett, W., Chapin, D., Cross, R., Dasu, S., Foudas, C., Loveless, R., Mattingly, S., Reeder, D., Smith, W., Vaiciulis, A., Wodarczyk, M., Bhadra, S., Frisken, W., Khakzad, M., and Schmidke, W.
Abstract: This paper presents the first analysis of diffractive photon dissociation events in deep inelastic positron-proton scattering at HERA in which the proton in the final state is detected and its momentum measured. The events are selected by requiring a scattered proton in the ZEUS leading proton spectrometer (LPS) with χL> 0.97, where xL is the fraction of the incoming proton beam momentum carried by the scattered proton. The use of the LPS significantly reduces the contamination from events with diffractive dissociation of the proton into low mass states and allows a direct measurement of t, the square of the four-momentum exchanged at the proton vertex. The dependence of the cross section ontis measured in the interval 0.073 < |t| < 0.4 GeV2and is found to be described by an exponential shape with the slope parameterb= 7.2 ± 1.1(stat.)−0.9+0.7(syst.) GeV−2. The diffractive structure function FD (4) is presented as 0.9 a function of χH≃ 1 − χLand β, the momentum fraction of the struck quark with respect to χH, and averaged over thetinterval 0.073 < |t′ < 0.4 GeV2and the photon virtuality range 5
Published: 1998
Full Text: View/download PDF

35. Scale-breaking effects in (pp) interactions and comparison with (e+e−) annihilations

Author: Basile, M., Bonvicini, G., Romeo, G. Cara, Cifarelli, L., Contin, A., Curatolo, M., D’Alí, G., Del Papa, C., Esposito, B., Giusti, P., Massam, T., Nania, R., Palmonari, F., Sartorelli, G., Susinno, G., Votano, L., and Zichichi, A.
Abstract: Scale-breaking effects have been measured in (pp) interactions, using the new method of analysis which allows the properties of the multiparticle systems produced in (pp) collisions to be compared with those produced in (e+e−) annihilation. A striking agreement is found in the values of the coefficientsCmeasured in (pp) and in (e+e−), using the correct values of the fractional momentumxR*in (pp) interactions at equivalent effective hadronic energy.
Published: 1983
Full Text: View/download PDF

36. Evidence for the same inclusive fractional-energy distributions in soft (pp) interactions and in (μp) deep inelastic scattering

Author: Bonvicini, G., Romeo, G. Cara, Cifarelli, L., Contin, A., Curatolo, M., D’Alí, G., Del Papa, C., Esposito, B., Giusti, P., Massam, T., Nania, R., Sartorelli, G., Susinno, G., Votano, L., and Zichichi, A.
Abstract: High-energy soft (pp) interactions are analysed exactly as the (μp) deep-inelastic-scattering (DIS) processes. The distributions of the inclusive fractional energy,z, are measured. The results are compared with (μp) DIS data: a remarkable agreement is observed.
Published: 1983
Full Text: View/download PDF

37. The leading effect explains the charged-particle multiplicity distributions observed at the cern pp collider

Author: Basile, M., Cara Romeo, G., Cifarelli, L., Contin, A., D’Alí, G., Del Papa, C., Giusti, P., Massam, T., Nania, R., Palmonari, F., Sartorelli, G., Spinetti, M., Susinno, G., Votano, L., and Zichichi, A.
Abstract: The assumption that the leading effect, and the charged-particle multiplicity distributions, measured at the ISR, scale with energy, and that the mean charged multiplicity, measured at the ISR, can be extrapolated up to Collider energy using the leading subtraction method, allows a prediction of the charged multiplicity distribution at the CERN pp Collider. This prediction is found to be in excellent agreement with the experimental data obtained at the Collider by the UA5 group.
Published: 1984
Full Text: View/download PDF

38. Scaling in the charged-particle multiplicity distributions at the ISR and comparison with (e+e-) data

Author: Basile, M., Cara Romeo, G., Cifarelli, L., Contin, A., D’Alí, G., Del Papa, C., Esposito, B., Giusti, P., Massam, T., Nania, R., Palmonari, F., Sartorelli, G., Spinetti, M., Susinno, G., Votano, L., and Zichichi, A.
Abstract: The distribution of the charged-particle multiplicities at the ISR are studied in terms of the effective energy available for particle production in (pp) interactions. These distributions are found to scale once the effective energy, obtained via the leading subtraction method, is used. A comparison with the charged particle distributions measured in (e+e-) annihilation shows a clear difference. This could be interpreted in terms of gluon-induced and quark-induced jets; where the gluoninduced jets are characterized by a wider multiplicity distribution with respect to quarkinduced jets.
Published: 1984
Full Text: View/download PDF

39. Advances in technology for high-energy subnuclear physics Contribution of the LAA project

Author: Acosta, D., Alberty, J., Alsford, J., Alvisi, C., Ambrosi, G., Anghinolfi, F., Anselmo, F., Anzivino, G., Arneodo, M., Arnold, R., Arzarello, F., Aspell, P., Barberio, L. E., Bari, G., Barillari, T., Basile, M., Battiston, R., Baudoin-Bijst, C., Becker, U., Bellagamba, L., Bénot, M., Benvenuto, P., Berbiers, J., Berdugo, J., Bergsma, F., Bertin, R., Bingefors, N., Bisello, D., Bock, R. K., Boscherini, D., Bosteels, M., Bouclier, R., Bramhall, M., Bruni, G., Buontempo, S., Calôba, L., Campbell, M., Caputi, L., Romeo, G. Cara, Caria, M., Casaccia, R., Castro, H., Ceresara, S., Chapuis, J. M., Charpak, G., Chesi, E., Chiarini, M., Christiansen, J., Christofel, E., Cifarelli, L., Cindolo, F., Colavita, F., Coninckx, F., Contin, A., Costa, M., Crotty, I., D’Alí, G., D’Ambrosio, C., D’Auria, S., Dardo, M., Del Papa, C., Della Gatta, G., De Pasquale, S., De Salvo, R., De Seixas, J. M., Destruel, P., de Witt, J., Di Rosa, O., Dorfan, D., Duchovni, E., Dupont, J., Dupraz, J., Egger, J., Ekelof, T., Enz, C. C., Ereditato, A., Ermoline, Y., Fabre, J. P., Feraudet, P., Ferrari, R., Fiori, F., Ford, P., Frasconi, F., Fraternali, M., French, M., Fuchs, M., Fumagalli, G., Gabathuler, K., Galvez, J., Gaudaen, J., Gildemeister, O., Giomataris, Y., Girod, J. P., Giusti, P., Goebel, K., Goiugas, A., Grinnel, C., Güsten, H., Guyonnet, J. L., Gys, T., Hartjes, F., Hazifotiadu, D., Heijne, E., Henkes, T., Henriques, A. M., Hourican, M., Iacobucci, G., Iuvino, G., Jarron, P., Jenni, P., Jobez, J. P., Joram, C., Kluge, W., Krisher, W., Krummenacher, F., Kuzucu, A., Laakso, I., Labbe, J. C., La Commare, G., Larsen, H., Laurenti, G., Lee, T. D., Letheren, M., Leutz, H., Levi, G., Levinson, L., Lin, Q., Linssen, L., Lisowski, B., Litke, A., Livan, M., Ljuslin, C., Lone, L., Maccarrone, G., Maio, A., Mapelli, L., Marchioro, A., Margotti, A., Marino, M., Massam, T., Matsuda, T., Matsuura, T., Mattern, D., Meddeler, G., Meier, K. H., Meng, R., Mikenberg, G., Million, G., Mondardini, M. R., Mörk, G., Morpurgo, M., Musso, B., Nania, R., Nemoz, C., Newett, S., Oliva, A., Olsen, A., Ong, B., O’Shea, V., Ozdes, N., Paar, H. P., Palermo, L., Cernicchiaro, S. Palermo, Palmonari, F., Passardi, G., Pastore, F., Pelfer, P., Pereira, M., Peroni, C., Perotto, E., Peskov, V., Piedigrossi, D., Pilastrini, R., Pitzl, D., Poggioli, L., Pol, M. E., Qian, S., Racz, A., Rivera, F., Rose-Dulcina, L., Ruf, T., Sadrozinski, H., Salgne, R., Sandoval, A., Sannier, G., Santiard, J. C., Sartorelli, G., Sartori, P., Sauli, F., Scheel, C., Schioppa, M., Schipper, J., Schönbacher, H., Scigocki, D., Scioni, M., Seguinot, J., Seiden, A., Seidl, W., Seixas, J. M., Sharp, P., Sigrist, A., Simon, A., Simonet, G., Sivertz, M., Smith, K., Sonderegger, P., Souza, M. N., Spencer, E., Sportelli, L., Staiano, K., Susinno, G. C., Tailhardat, S., Taufer, M., Taufer, M., Tavlet, M., Terraneo, A. E., Thomé, Z. D., Timellini, R., Tischhauser, J., Tocqueville, J., Valencic, V., Van Eijk, B., Vanstraelen, G., Vercesi, V., Votano, L., Wenninger, H., Werner, C., Wigmans, R., Williams, C., Ypsilantis, G., Zaganidis, N., Zichichi, A., and Zografos, K.
Published: 1990
Full Text: View/download PDF

40. Study of charged—currentepinteractions atQ2>200 GeV2with the ZEUS detector at HERA

Author: Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Okrasinski, J. R., Repond, J., Stanek, R., Talaga, R. L., Zhang, H., Mattingly, M. C. K., Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Romeo, G. Cara, Castellini, G., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Palmonari, F., Pesci, A., Polini, A., Sartorelli, G., Garcia, Y. Zamora, Zichichi, A., Amelung, C., Bornheim, A., Crittenden, J., Deffner, R., Doeker, T., Eckert, M., Feld, L., Frey, A., Geerts, M., Grothe, M., Hartmann, H., Heinloth, K., Heinz, L., Hilger, E., Jakob, H. -P., Katz, U. F., Mengel, S., Paul, E., Pfeiffer, M., Rembser, Ch., Schramm, D., Stamm, J., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Cottingham, W. N., Dyce, N., Foster, B., George, S., Hayes, M. E., Heath, G. P., Heath, H. F., Piccioni, D., Roff, D. G., Tapper, R. J., Yoshida, R., Arneodo, M., Ayad, R., Capua, M., Garfagnini, A., Iannotti, L., Schioppa, M., Susinno, G., Caldwell, A., Cartiglia, N., Jing, Z., Liu, W., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Jakubowski, Z., Przybycień, M. B., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Jeleń, K., Kisielewska, D., Kowalski, T., Przybycień, M., Rulikowska-Zarębska, E., Suszycki, L., Zając, J., Duliński, Z., Kotański, A., Abbiendi, G., Bauerdick, L. A. T., Behrens, U., Beier, H., Bienlein, J. K., Cases, G., Deppe, O., Desler, K., Drews, G., Flasiński, M., Gilkinson, D. J., Glasman, C., Göttlicher, P., Große-Knetter, J., Haas, T., Hain, W., Hasell, D., Heßling, H., Iga, Y., Johnson, K. F., Joos, P., Kasemann, M., Klanner, R., Koch, W., Kötz, U., Kowalski, H., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mainusch, J., Mańczak, O., Milewski, J., Monteiro, T., Ng, J. S. T., Notz, D., Ohrenberg, K., Piotrzkowski, K., Roco, M., Rohde, M., Roldán, J., Schneekloth, U., Schulz, W., Selonke, F., Surrow, B., Tassi, E., Voß, T., Westphal, D., Wolf, G., Wollmer, U., Youngman, C., Zeuner, W., Grabosch, H. J., Kharchilava, A., Mari, S. M., Meyer, A., Schlenstedt, S., Wulff, N., Barbagli, G., Gallo, E., Pelfer, P., Maccarrone, G., De Pasquale, S., Votano, L., Bamberger, A., Eisenhardt, S., Trefzger, T., Wölfle, S., Bromley, J. T., Brook, N. H., Bussey, P. J., Doyle, A. T., Saxon, D. H., Sinclair, L. E., Utley, M. L., Wilson, A. S., Dannemann, A., Holm, U., Horstmann, D., Sinkus, R., Wick, K., Burow, B. D., Hagge, L., Lohrmann, E., Poelz, G., Schott, W., Zetsche, F., Bacon, T. C., Brümmer, N., Butterworth, I., Harris, V. L., Howell, G., Hung, B. H. Y., Lamberti, L., Long, K. R., Miller, D. B., Pavel, N., Prinias, A., Sedgbeer, J. K., Sideris, D., Whitfield, A. F., Mallik, U., Wang, M. Z., Wang, S. M., Wu, J. T., Cloth, P., Filges, D., An, S. H., Cho, G. H., Ko, B. J., Lee, S. B., Nam, S. W., Park, H. S., Park, S. K., Kartik, S., Kim, H. -J., McNeil, R. R., Metcalf, W., Nadendla, V. K., Barreiro, F., Fernandez, J. P., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., Martinez, M., del Peso, J., Puga, J., Terron, J., de Trocóniz, J. F., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Matthews, C. G., Patel, P. M., Riveline, M., Stairs, D. G., St-Laurent, M., Ullmann, R., Zacek, G., Tsurugai, T., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., Golubkov, Yu. A., Kobrin, V. D., Korzhavina, I. A., Kuzmin, V. A., Lukina, O. Yu., Proskuryakov, A. S., Savin, A. A., Shcheglova, L. M., Solomin, A. N., Zotov, N. P., Botje, M., Chlebana, F., Engelen, J., de Kamps, M., Kooijman, P., Kruse, A., van Sighem, A., Tiecke, H., Verkerke, W., Vossebeld, J., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L. S., Gilmore, J., Li, C., Ling, T. Y., Nylander, P., Park, I. H., Romanowski, T. A., Bailey, D. S., Cashmore, R. J., Cooper-Sarkar, A. M., Devenish, R. C. E., Harnew, N., Lancaster, M., Lindemann, L., McFall, J. D., Nath, C., Noyes, V. A., Quadt, A., Tickner, J. R., Uijterwaal, H., Walczak, R., Waters, D. S., Wilson, F. F., Yip, T., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Zuin, F., Bulmahn, J., Feild, R. G., Oh, B. Y., Whitmore, J. J., D’Agostini, G., Marini, G., Nigro, A., Hart, J. C., McCubbin, N. A., Shah, T. P., Barberis, E., Dubbs, T., Heusch, C., Van Hook, M., Lockman, W., Rahn, J. T., Sadrozinski, H. F. -W., Seiden, A., Williams, D. C., Biltzinger, J., Seifert, R. J., Schwarzer, O., Walenta, A. H., Abramowicz, H., Briskin, G., Dagan, S., Levy, A., Fleck, J. I., Inuzuka, M., Ishii, T., Kuze, M., Mine, S., Nakao, M., Suzuki, I., Tokushuku, K., Umemori, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Matsushita, T., Yamauchi, K., Cirio, R., Costa, M., Ferrero, M. I., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Benard, F., Brkic, M., Fagerstroem, C. -P., Hartner, G. F., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Polenz, S., Sampson, C. R., Simmons, D., Teuscher, R. J., Butterworth, J. M., Catterall, C. D., Jones, T. W., Kaziewicz, P. B., Lane, J. B., Saunders, R. L., Shulman, J., Sutton, M. R., Lu, B., Mo, L. W., Bogusz, W., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Coldewey, C., Eisenberg, Y., Hochman, D., Karshon, U., Revel, D., Zer-Zion, D., Badgett, W. F., Breitweg, J., Chapin, D., Cross, R., Dasu, S., Foudas, C., Loveless, R. J., Mattingly, S., Reeder, D. D., Silverstein, S., Smith, W. H., Vaiciulis, A., Wodarczyk, M., Bhadra, S., Cardy, M. L., Frisken, W. R., Khakzad, M., Murray, W. N., and Schmidke, W. B.
Abstract: Deep inelastic charged-current reactions have been studied ine+pande−pcollisions at a center of mass energy of about 300GeV in the kinematic regionQ2>200GeV2andx>0.006 using the ZEUS detector at HERA. The integrated cross sections forQ2>200GeV2are found to be and . Differential cross sections have been measured as functions of the variablesx, yandQ2. From the measured differential cross sectionsdσ/dQ2, theWboson mass is determined to be . Measured jet rates and transverse energy profiles agree with model predictions. A search for charged-current interactions with a large rapidity gap yielded one candidate event, corresponding to a cross section of
Published: 1996
Full Text: View/download PDF

41. Measurement of elasticρ0photoproduction at HERA

Author: Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R. L., Zhang, H., Ayad, R., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Cara Romeo, G., Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Nemoz, C., Palmonari, F., Polini, A., Sartorelli, G., Timellini, T., Zamora Garcia, Y., Zichichi, A., Bargende, B., Bornheim, A., Crittenden, J., Desch, K., Diekmann, B., Doeker, T., Eckert, M., Feld, L., Frey, A., Geerts, M., Grothe, M., Hartmann, H., Heinloth, K., Hilger, E., Jakob, H. -P., Katz, U. F., Mengel, S., Mollen, J., Paul, E., Pfeiffer, M., Rembser, Ch., Schramm, D., Stamm, J., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Dyce, N., Foster, B., George, S., Gilmore, R., Heath, G. P., Heath, H. F., Llewellyn, T. J., Morgado, C. J. S., Norman, D. J. P., O’Mara, J. A., Tapper, R. J., Wilson, S. S., Yoshida, R., Rau, R. R., Arneodo, M., Capua, M., Garfagnini, A., Iannotti, L., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Cartiglia, N., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Piotrzkowski, K., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Jeleń, K., Kisielewska, D., Kowalski, T., Rulikowska-Zarębska, E., Suszycki, L., Zając, J., Kotański, A., Przybycień, M., Bauerdick, L. A. T., Behrens, U., Beier, H., Bienlein, J. K., Coldewey, C., Deppe, O., Desler, K., Drews, G., Flasiński, M., Gilkinson, D. J., Glasman, C., Göttlicher, P., Große-Knetter, J., Gutjahr, B., Haas, T., Hain, W., Hasell, D., Heßling, H., Iga, Y., Johnson, K., Joos, P., Kasemann, M., Klanner, R., Koch, W., Köpke, L., Kötz, U., Kowalski, H., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mainusch, J., Mańczak, O., Monteiro, T., Ng, J. S. T., Nickel, S., Notz, D., Ohrenberg, K., Roco, M., Rohde, M., Roldán, J., Schneekloth, U., Schulz, W., Selonke, F., Stiliaris, E., Surrow, B., Voß, T., Westphal, D., Wolf, G., Youngman, C., Zeuner, W., Zhou, J. F., Grabosch, H. J., Kharchilava, A., Leich, A., Mattingly, M. C. K., Mari, S. M., Meyer, A., Schlenstedt, S., Wulff, N., Barbagli, G., Pelfer, P., Anzivino, G., Maccarrone, G., De Pasquale, S., Votano, L., Bamberger, A., Eisenhardt, S., Freidhof, A., Söldner-Rembold, S., Schroeder, J., Trefzger, T., Brook, N. H., Bussey, P. J., Doyle, A. T., Saxon, D. H., Utley, M. L., Wilson, A. S., Dannemann, A., Holm, U., Horstmann, D., Neumann, T., Sinkus, R., Wick, K., Badura, E., Burow, B. D., Hagge, L., Lohrmann, E., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Zetsche, F., Bacon, T. C., Bruemmer, N., Butterworth, I., Gallo, E., Harris, V. L., Hung, B. Y. H., Long, K. R., Miller, D. B., Morawitz, P. P. O., Prinias, A., Sedgbeer, J. K., Whitfield, A. F., Mallik, U., McCliment, E., Wang, M. Z., Wang, S. M., Wu, J. T., Cloth, P., Filges, D., An, S. H., Hong, S. M., Nam, S. W., Park, S. K., Suh, M. H., Yon, S. H., Imlay, R., Kartik, S., Kim, H. -J., McNeil, R. R., Metcalf, W., Nadendla, V. K., Barreiro, F., Cases, G., Fernandez, J. P., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., Martinez, M., del Peso, J., Puga, J., Terron, J., de Trocóniz, J. F., Smith, G. R., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Matthews, C. G., Patel, P. M., Sinclair, L. E., Stairs, D. G., St.Laurent, M., Ullmann, R., Zacek, G., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., Golubkov, Yu A., Kobrin, V. D., Korzhavina, I. A., Kuzmin, V. A., Lukina, O. Yu, Proskuryakov, A. S., Savin, A. A., Shcheglova, L. M., Solomin, A. N., Zotov, N. P., Botje, M., Chlebana, F., Dake, A., Engelen, J., de Kamps, M., Kooijman, P., Kruse, A., Tiecke, H., Verkerke, W., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L. S., Gilmore, J., Honscheid, K., Li, C., Ling, T. Y., McLean, K. W., Murray, W. N., Nylander, P., Park, I. H., Romanowski, T. A., Seidlein, R., Bailey, D. S., Byrne, A., Cashmore, R. J., Cooper-Sarkar, A. M., Devenish, R. C. E., Harnew, N., Lancaster, M., Lindemann, L., McFall, J. D., Nath, C., Noyes, V. A., Quadt, A., Tickner, J. R., Uijterwaal, H., Walczak, R., Waters, D. S., Wilson, F. F., Yip, T., Abbiendi, G., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Butterworth, J. M., Feild, R. G., Oh, B. Y., Whitmore, J. J., D’Agostini, G., Marini, G., Nigro, A., Tassi, E., Hart, J. C., McCubbin, N. A., Prytz, K., Shah, T. P., Short, T. L., Barberis, E., Dubbs, T., Heusch, C., Van Hook, M., Lockman, W., Rahn, J. T., Sadrozinski, H. F. W., Seiden, A., Williams, D. C., Biltzinger, J., Seifert, R. J., Schwarzer, O., Walenta, A. H., Zech, G., Abramowicz, H., Briskin, G., Dagan, S., Levy, A., Fleck, J. I., Hasegawa, T., Hazumi, M., Ishii, T., Kuze, M., Mine, S., Nagasawa, Y., Nakao, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nakamitsu, Y., Yamauchi, K., Cirio, R., Costa, M., Ferrero, M. I., Lamberti, L., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Bandyopadhyay, D., Benard, F., Brkic, M., Gingrich, D. M., Hartner, G. F., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Polenz, S., Sampson, C. R., Teuscher, R. J., Catterall, C. D., Jones, T. W., Kaziewicz, P. B., Lane, J. B., Saunders, R. L., Shulman, J., Blankenship, K., Lu, B., Mo, L. W., Bogusz, W., Charchuła, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Eisenberg, Y., Karshon, U., Revel, D., Zer-Zion, D., Ali, I., Badgett, W. F., Behrens, B., Dasu, S., Fordham, C., Foudas, C., Goussiou, A., Loveless, R. J., Reeder, D. D., Silverstein, S., Smith, W. H., Vaiciulis, A., Wodarczyk, M., Tsurugai, T., Bhadra, S., Cardy, M. L., Fagerstroem, C. -P., Frisken, W. R., Furutani, K. M., Khakzad, M., and Schmidke, W. B.
Abstract: Elasticρ0photoproduction has been measured using the ZEUS detector at HERA. Untagged photoproduction events fromepinteractions were used to measure the reactionγp→ρ0p(ρ0)→π+π−) at photon-proton centre-of-mass energies between 60 and 80 GeV and |t|<0.5 GeV2, wheretis the square of the four-momentum transferred at the proton vertex. The differential cross sectiondσ/dMππwhereMππis the invariant mass of the two pions, and the integrated cross section, σγp→ϱ0ϱ, are presented; the latter was measured to be 14.7±0.4 (stat.) ±2.4 (syst.)μb. The differential cross sectiondσ/dthas an approximately exponential shape; a fit of the typeAt′exp(−bt′|t|+ct′t2) yields at-slopebt′=9.9±1.2 (stat.) ±1.4 (syst.) GeV−2. The results, when compared to low energy data, show a weak energy dependence of both σγp→ϱ0pand of thet-slope. Theρ0is produced predominantly with transverse polarisation, demostrating thats-channel helicity conservation holds at these energies.
Published: 1995
Full Text: View/download PDF

42. Measurement of the proton structure functionF2at lowxand lowQ2at HERA

Author: Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R. L., Zhang, H., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Cara Romeo, G., Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Nemoz, C., Palmonari, F., Polini, A., Sartorelli, G., Timellini, R., Zamora Garcia, Y., Zichichi, A., Bornheim, A., Crittenden, J., Desch, K., Diekmann, B., Doeker, T., Eckert, M., Feld, L., Frey, A., Geerts, M., Grothe, M., Hartmann, H., Heinloth, K., Heinz, L., Hilger, E., Jakob, H. -P., Katz, U. F., Mengel, S., Mollen, J., Paul, E., Pfeiffer, M., Rembser, Ch., Schramm, D., Stamm, J., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Cottingham, W. N., Dyce, N., Foster, B., George, S., Hayes, M. E., Heath, G. P., Heath, H. F., Morgado, C. J. S., O’Mara, J. A., Piccioni, D., Roff, D. G., Tapper, R. J., Yoshida, R., Rau, R. R., Arneodo, M., Ayad, R., Capua, M., Garfagnini, A., Iannotti, L., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Cartiglia, N., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Piotrzkowski, K., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Jeleń, K., Kisielewska, D., Kowalski, T., Przybycień, M., Rulikowska-Zarcebska, E., Suszycki, L., Zając, J., Kotański, A., Bauerdick, L. A. T., Behrens, U., Beier, H., Bienlein, J. K., Coldewey, C., Deppe, O., Desler, K., Drews, G., Flasiński, M., Gilkinson, D. J., Glasman, C., Göttlicher, P., Große-Knetter, J., Gutjahr, B., Haas, T., Hain, W., Hasell, D., Heßling, H., Iga, Y., Johnson, K. F., Joos, P., Kasemann, M., Klanner, R., Koch, W., Köpke, L., Kötz, U., Kowalski, H., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mainusch, J., Mańczak, O., Monteiro, T., Ng, J. S. T., Nickel, S., Notz, D., Ohrenberg, K., Roco, M., Rohde, M., Roldán, J., Schneekloth, U., Schulz, W., Selonke, F., Stiliaris, E., Surrow, B., Voß, T., Westphal, D., Wolf, G., Youngman, C., Zeuner, W., Zhou, J. F., Grabosch, H. J., Kharchilava, A., Leich, A., Mari, S. M., Mattingly, M. C. K., Meyer, A., Schlenstedt, S., Wulff, N., Barbagli, G., Gallo, E., Pelfer, P., Anzivino, G., Maccarrone, G., De Pasquale, S., Votano, L., Bamberger, A., Eisenhardt, S., Freidhof, A., Söldner-Rembold, S., Schroeder, J., Trefzger, T., Brook, N. H., Bussey, P. J., Doyle, A. T., Saxon, D. H., Utley, M. L., Wilson, A. S., Dannemann, A., Holm, U., Horstmann, D., Neumann, T., Sinkus, R., Wick, K., Badura, E., Burow, B. D., Hagge, L., Lohrmann, E., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Zetsche, F., Bacon, T. C., Bruemmer, N., Butterworth, I., Harris, V. L., Hung, B. Y. H., Long, K. R., Miller, D. B., Morawitz, P. P. O., Prinias, A., Sedgbeer, J. K., Whitfield, A. F., Mallik, U., McCliment, E., Wang, M. Z., Wang, S. M., Wu, J. T., Cloth, P., Filges, D., An, S. H., Hong, S. M., Nam, S. W., Park, S. K., Suh, M. H., Yon, S. H., Imlay, R., Kartik, S., Kim, H. -J., McNeil, R. R., Metcalf, W., Nadendla, V. K., Barreiro, F., Cases, G., Fernandez, J. P., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., Martinez, M., del Peso, J., Puga, J., Terron, J., de Trocóniz, J. F., Smith, G. R., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Matthews, C. G., Patel, P. M., Sinclair, L. E., Stairs, D. G., St.Laurent, M., Ullmann, R., Zacek, G., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., Golubkov, Yu A., Kobrin, V. D., Korzhavina, I. A., Kuzmin, V. A., Lukina, O. Yu, Proskuryakov, A. S., Savin, A. A., Shcheglova, L. M., Solomin, A. N., Zotov, N. P., Botje, M., Chlebana, F., Dake, A., Engelen, J., de Kamps, M., Kooijman, P., Kruse, A., Tiecke, H., Verkerke, W., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L. S., Gilmore, J., Honscheid, K., Li, C., Ling, T. Y., McLean, K. W., Nylander, P., Park, I. H., Romanowski, T. A., Seidlein, R., Bailey, D. S., Byrne, A., Cashmore, R. J., Cooper-Sarkar, A. M., Devenish, R. C. E., Harnew, N., Lancaster, M., Lindemann, L., McFall, J. D., Nath, C., Noyes, V. A., Quadt, A., Tickner, J. R., Uijterwaal, H., Walczak, R., Waters, D. S., Wilson, F. F., Yip, T., Abbiendi, G., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Butterworth, J. M., Feild, R. G., Oh, B. Y., Okrasinski, J. R., Whitmore, J. J., D’Agostini, G., Marini, G., Nigro, A., Tassi, E., Hart, J. C., McCubbin, N. A., Prytz, K., Shah, T. P., Short, T. L., Barberis, E., Dubbs, T., Heusch, C., Van Hook, M., Lockman, W., Rahn, J. T., Sadrozinski, H. F. -W., Seiden, A., Williams, D. C., Biltzinger, J., Seifert, R. J., Schwarzer, O., Walenta, A. H., Zech, G., Abramowicz, H., Briskin, G., Dagan, S., Händel-Pikielny, C., Levy, A., Fleck, J. I., Hasegawa, T., Hazumi, M., Ishii, T., Kuze, M., Mine, S., Nagasawa, Y., Nakao, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nakamitsu, Y., Yamauchi, K., Cirio, R., Costa, M., Ferrero, M. I., Lamberti, L., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Bandyopadhyay, D., Benard, F., Brkic, M., Gingrich, D. M., Hartner, G. F., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Polenz, S., Sampson, C. R., Teuscher, R. J., Catterall, C. D., Jones, T. W., Kaziewicz, P. B., Lane, J. B., Saunders, R. L., Shulman, J., Blankenship, K., Lu, B., Mo, L. W., Bogusz, W., Charchuła, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Eisenberg, Y., Karshon, U., Revel, D., Zer-Zion, D., Ali, I., Badgett, W. F., Behrens, B., Dasu, S., Fordham, C., Foudas, C., Goussiou, A., Loveless, R. J., Reeder, D. D., Silverstein, S., Smith, W. H., Vaiciulis, A., Wodarczyk, M., Tsurugai, T., Bhadra, S., Cardy, M. L., Fagerstroem, C. -P., Frisken, W. R., Furutani, K. M., Khakzad, M., Murray, W. N., and Schmidke, W. B.
Abstract: We report on a measurement of the proton structure functionF2in the range 3.5×10−5≤x≤4×10−3and 1.5 GeV2≤Q2≤15GeV2at theepcollider HERA operating at a centre-of-mass energy of √s=300GeV. The rise ofF2with decreasingxobserved in the previous HERA measurements persists in this lowerxandQ2range. TheQ2evolution ofF2, even at the lowestQ2andxmeasured, is consistent with perturbative QCD.
Published: 1995
Full Text: View/download PDF

43. Measurement of the diffractive structure functionF2D(4) 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., Romeo, G. Cara, Castellini, G., Chiarini, M., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., De Pasquale, S., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Nemoz, C., Palmonari, F., Pesci, A., Polini, A., Ricci, F., 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., Katz, U. F., Kerger, R., Paul, E., Pfeiffer, M., Rembser, Ch., Stamm, J., Wedemeyer, R., Wieber, H., Bailey, D. S., Campbell-Robson, S., Cottingham, W. N., Foster, B., Hall-Wilton, R., Hayes, M. E., Heath, G. P., Heath, H. F., McFall, J. D., Piccioni, D., Roff, D. G., Tapper, R. J., Arneodo, M., Ayad, R., Capua, M., Garfagnini, A., Iannotti, L., Schioppa, M., Susinno, G., Kim, J. Y., Lee, J. H., Lim, L. 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., Jeleń, K., Kisielewska, D., Kowalski, T., Przybycień, M., Rulikowska-Zareebska, E., Suszycki, L., Zajac, J., Duliński, Z., Kotański, A., Abbiendi, G., Bauerdick, L. A. T., Behrens, U., Beier, H., Bienlein, J. K., Cases, G., Deppe, O., Desler, K., Drews, G., Fricke, U., Gilkinson, D. J., Glasman, C., Göttlicher, P., Haas, T., Hain, W., Hasell, D., Johnson, K. F., Kasemann, M., Koch, W., Kötz, U., Kowalski, H., Labs, J., Lindemann, L., Löhr, B., Löwe, M., Mańczak, O., Milewski, J., Monteiro, T., Ng, J. S. T., Notz, D., Ohrenberg, K., Park, I. H., Pellegrino, A., Pelucchi, F., Piotrzkowski, K., Roco, M., Rohde, M., Roldán, J., Ryan, J. J., Savin, A. A., Schneekloth, U., Selonke, F., Surrow, B., Tassi, E., Voß, T., Westphal, D., Wolf, G., Wollmer, U., Youngman, C., Zarnecki, A. F., Zeuner, W., Burow, B. D., Grabosch, H. J., Meyer, A., Schlenstedt, S., Barbagli, G., Gallo, E., Pelfer, P., Anzivino, G., Maccarrone, G., Votano, L., Barberger, A., Eisenhardt, S., Markun, P., Trefzger, T., Wölfle, S., Bromley, J. T., Brook, N. H., Bussey, P. J., Doyle, A. T., Macdonald, N., Saxon, D. H., Sinclair, L. E., Strickland, E., Waugh, R., Bohnet, I., Gendner, N., Holm, U., Meyer-Larsen, A., Salchi, H., Wick, K., Gladilin, L. K., Horstmann, D., Kçira, D., Klanner, R., Lohrmann, E., Poelz, G., Schott, W., Bacon, T. C., Butterworth, I., Cole, J. E., Howell, G., Hung, B. H. Y., Lamberti, L., Long, K. R., Prinias, A., Sedgbeer, J. K., Sideris, D., 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., Barreiro, F., Fernández, J. P., García, G., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., Martínez, M., del Peso, J., Puga, J., Terrón, J., de Trocóniz, J. F., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Murray, 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, Yu. A., Khein, L. A., Korotkova, N. A., Korzhavina, I. A., Kuzmin, V. A., Lukina, O. Yu., Proskuryakov, A. S., Shcheglova, L. M., Solomin, A. N., Zotkin, S. A., Bokel, C., Botje, M., Brummer, N., Chlebana, F., Engelen, J., Koffeman, E., Kooijman, P., van Sighem, A., Tiecke, H., Tuning, N., Verkerke, W., Vossebeld, J., Vreeswijk, M., Wiggers, L., de 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., Große-Knetter, J., Harnew, N., Lancaster, M., Nath, C., Noyes, V. A., Quadt, A., Ruske, O., Tickner, J. R., Uijterwaal, H., Walczak, R., Waters, D. S., Bertolin, A., Bruguera, 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., Okrasinski, 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., Barberis, E., Epperson, D., Heusch, C., Rahn, J. T., Sadrozinski, H. F. -W., Seiden, A., Wichmann, R., Williams, D. C., Schwarzer, O., Walenta, A. H., 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., 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., Hartner, G. F., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Polenz, S., Sabetfakhri, A., Simmons, D., Teuscher, R. J., Butterworth, J. M., Catterall, C. D., Jones, T. W., Lane, J. B., Saunders, R. L., Shulman, J., Sutton, M. R., Wing, M., Ciborowski, J., Grzelak, G., Kasprzak, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Pawlak, R., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Adamus, M., Coldewey, C., 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., Bhadra, S., Frisken, W. R., Khakzad, M., and Schmidke, W. B.
Abstract: This paper presents the first analysis of diffractive photon dissociation events in deep inelastic positron-proton scattering at HERA in which the proton in the final state is detected and its momentum measured. The events are selected by requiring a scattered proton in the ZEUS leading proton spectrometer (LPS) with ?L > 0.97, where xL is the fraction of the incoming proton beam momentum carried by the scattered proton. The use of the LPS significantly reduces the contamination from events with diffractive dissociation of the proton into low mass states and allows a direct measurement of t, the square of the four-momentum exchanged at the proton vertex. The dependence of the cross section ont is measured in the interval 0.073 < |t| < 0.4 GeV2 and is found to be described by an exponential shape with the slope parameterb = 7.2 ± 1.1(stat.)-0.9+0.7(syst.) GeV-2. The diffractive structure function FD (4) is presented as 0.9 a function of ?H ? 1 - ?L and ß, the momentum fraction of the struck quark with respect to ?H, and averaged over thet interval 0.073 < |t' < 0.4 GeV2 and the photon virtuality range 5 2 < 20 GeV2. In the kinematic range 4 × 104 < ?p < 0.03 and 0.015 < ß < 0.5, the ?p dependence ofFD(4) is fitted with a form (1/?p)a , yieldinga - 1.00 ± 0.09 (stat.)-0.05+0.11(syst.). Upon integration overL, the structure functionF2D(3) is determined in a kinematic range extending to higher ?p and lower ß compared to our previous analysis; the results are discussed within the framework of Regge theory.
Published: 1979
Full Text: View/download PDF

44. Inclusive charged particle distributions in deep inelastic scattering events at HERA

Author: Derrick, M., Krakauer, D., Magill, S., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R. L., Zhang, H., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Bruni, P., Romeo, G. Cara, Castellini, G., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., Gialas, I., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Palmonari, F., Polini, A., Sartorelli, G., Garcia, Y. Zamora, Zichichi, A., Bornheim, A., Crittenden, J., Desch, K., Diekmann, B., Doeker, T., Eckert, M., Feld, L., Frey, A., Geerts, M., Grothe, M., Hartmann, H., Heinloth, K., Heinz, L., Hilger, E., Jakob, H. -P., Katz, U. F., Mengel, S., Mollen, J., Paul, E., Pfeiffer, M., Rembser, Ch., Schramm, D., Stamm, J., Wedemeyer, R., Campbell-Robson, S., Cassidy, A., Cottingham, W. N., Dyce, N., Foster, B., George, S., Hayes, M. E., Heath, G. P., Heath, H. F., Morgado, C. J. S., O’Mara, J. A., Piccioni, D., Roff, D. G., Tapper, R. J., Yoshida, R., Rau, R. R., Arneodo, M., Ayad, R., Capua, M., Garfagnini, A., Iannotti, L., Schioppa, M., Susinno, G., Bernstein, A., Caldwell, A., Cartiglia, N., Parsons, J. A., Ritz, S., Sciulli, F., Straub, P. B., Wai, L., Yang, S., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Piotrzkowski, K., Zachara, M., Zawiejski, L., Adamczyk, L., Bednarek, B., Jeleń, K., Kisielewska, D., Kowalski, T., Przybycień, M., Rulikowska-Zarębska, E., Suszycki, L., Zajac, J., Kotański, A., Bauerdick, L. A. T., Behrens, U., Beier, H., Bienlein, J. K., Coldewey, C., Deppe, O., Desler, K., Drews, G., Flasiński, M., Gilkinson, D. J., Glasman, C., Göttlicher, P., Große-Knetter, J., Gutjahr, B., Haas, T., Hain, W., Hasell, D., Heßling, H., Iga, Y., Johnson, K. F., Joos, P., Kasemann, M., Klanner, R., Koch, W., Köpke, L., Kötz, U., Kowalski, H., Labs, J., Ladage, A., Löhr, B., Löwe, M., Lüke, D., Mainusch, J., Mańczak, O., Monteiro, T., Ng, J. S. T., Nickel, S., Notz, D., Ohrenberg, K., Roco, M., Rohde, M., Roldán, J., Schneekloth, U., Schulz, W., Selonke, F., Stiliaris, E., Surrow, B., Voß, T., Westphal, D., Wolf, G., Youngman, C., Zeuner, W., Zhou, J. F., Grabosch, H. J., Kharchilava, A., Leich, A., Mari, S. M., Mattingly, M. C. K., Meyer, A., Schlenstedt, S., Wulff, N., Barbagli, G., Gallo, E., Pelfer, P., Maccarrone, G., De Pasquale, S., Votano, L., Bamberger, A., Eisenhardt, S., Freidhof, A., Söldner-Rembold, S., Schroeder, J., Trefzger, T., Bromley, J. T., Brook, N. H., Bussey, P. J., Doyle, A. T., Saxon, D. H., Utley, M. L., Wilson, A. S., Dannemann, A., Holm, U., Horstmann, D., Neumann, T., Sinkus, R., Wick, K., Badura, E., Burow, B. D., Hagge, L., Lohrmann, E., Milewski, J., Nakahata, M., Pavel, N., Poelz, G., Schott, W., Zetsche, F., Bacon, T. C., Bruemmer, N., Butterworth, I., Harris, V. L., Hung, B. Y. H., Long, K. R., Miller, D. B., Morawitz, P. P. O., Prinias, A., Sedgbeer, J. K., Whitfield, A. F., Mallik, U., McCliment, E., Wang, M. Z., Wang, S. M., Wu, J. T., Cloth, P., Filges, D., An, S. H., Cho, G. H., Ko, B. J., Lee, S. B., Nam, S. W., Park, H. S., Park, S. K., Imlay, R., Kartik, S., Kim, H. -J., McNeil, R. R., Metcalf, W., Nadendla, V. K., Barreiro, F., Cases, G., Fernandez, J. P., Graciani, R., Hernández, J. M., Hervás, L., Labarga, L., Martinez, M., del Peso, J., Puga, J., Terron, J., de Trocóniz, J. F., Smith, G. R., Corriveau, F., Hanna, D. S., Hartmann, J., Hung, L. W., Lim, J. N., Matthews, C. G., Patel, P. M., Sinclair, L. E., Stairs, D. G., fnLaurent, M. St., Ullmann, R., Zacek, G., Bashkirov, V., Dolgoshein, B. A., Stifutkin, A., Bashindzhagyan, G. L., Ermolov, P. F., Gladilin, L. K., Golubkov, Yu. A., Kobrin, V. D., Korzhavina, I. A., Kuzmin, V. A., Lukina, O. Yu., Proskuryakov, A. S., Savin, A. A., Shcheglova, L. M., Solomin, A. N., Zotov, N. P., Botje, M., Chlebana, F., Dake, A., Engelen, J., de Kamps, M., Kooijman, P., Kruse, A., Tiecke, H., Verkerke, W., Vreeswijk, M., Wiggers, L., de Wolf, E., van Woudenberg, R., Acosta, D., Bylsma, B., Durkin, L. S., Gilmore, J., Honscheid, K., Li, C., Ling, T. Y., Mclean, K. W., Nylander, P., Park, I. H., Romanowski, T. A., Seidlein, R., Bailey, D. S., Byrne, A., Cashmore, R. J., Cooper-Sarkar, A. M., Devenish, R. C. E., Harnew, N., Lancaster, M., Lindemann, L., McFall, J. D., Nath, C., Noyes, V. A., Quadt, A., Tickner, J. R., Uijterwaal, H., Walczak, R., Waters, D. S., Wilson, F. F., Yip, T., Abbiendi, G., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., De Giorgi, M., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Bulmahn, J., Butterworth, J. M., Feild, R. G., Oh, B. Y., Okrasinski, J. R., Whitmore, J. J., D’Agostini, G., Marini, G., Nigro, A., Tassi, E., Hart, J. C., McCubbin, N. A., Prytz, K., Shah, T. P., Short, T. L., Barberis, E., Dubbs, T., Heusch, C., Van Hook, M., Lockman, W., Rahn, J. T., Sadrozinski, H. F. -W., Seiden, A., Williams, D. C., Biltzinger, J., Seifert, R. J., Schwarzer, O., Walenta, A. H., Zech, G., Abramowicz, H., Briskin, G., Dagan, S., Levy, A., Fleck, J. I., Hasegawa, T., Hazumi, M., Ishii, T., Kuze, M., Mine, S., Nagasawa, Y., Nakao, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamazaki, Y., Chiba, M., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Nakamitsu, Y., Yamauchi, K., Cirio, R., Costa, M., Ferrero, M. I., Lamberti, L., Maselli, S., Peroni, C., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D. C., Benard, F., Brkic, M., Hartner, G. F., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Polenz, S., Sampson, C. R., Teuscher, R. J., Catterall, C. D., Jones, T. W., Kaziewicz, P. B., Lane, J. B., Saunders, R. L., Shulman, J., Blankenship, K., Lu, B., Mo, L. W., Bogusz, W., Charchuła, K., Ciborowski, J., Gajewski, J., Grzelak, G., Kasprzak, M., Krzyżanowski, M., Muchorowski, K., Nowak, R. J., Pawlak, J. M., Tymieniecka, T., Wróblewski, A. K., Zakrzewski, J. A., Żarnecki, A. F., Adamus, M., Eisenberg, Y., Karshon, U., Revel, D., Zer-Zion, D., Ali, I., Badgett, W. F., Behrens, B., Dasu, S., Fordham, C., Foudas, C., Goussiou, A., Loveless, R. J., Reeder, D. D., Silverstein, S., Smith, W. H., Vaiciulis, A., Wodarczyk, M., Tsurugai, T., Bhadra, S., Cardy, M. L., Fagerstroem, C. -P., Frisken, W. R., Khakzad, M., Murray, W. N., and Schmidke, W. B.
Abstract: A measurement of inclusive charged particle distributions in deep inelasticepscattering forγ*pcentre-of-mass energies 75
Published: 1996
Full Text: View/download PDF

45. Diffractive dijet cross sections in photoproduction 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., Romeo, G. Cara, 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. Zamora, 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., Ayad, R., 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-Zarbska, E., Suszycki, L., Zajc, 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., Hasell, D., Hebbel, K., Johnson, K. F., Kasemann, M., Koch, W., Kötz, U., Kowalski, H., Lindemann, L., Löhr, B., Milewski, J., Milite, M., Monteiro, T., Ng, J. S. T., Notz, D., Park, I. H., Pellegrino, A., Pelucchi, F., Piotrzkowski, K., Rohde, M., Roldán, J., Ryan, J. J., 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., Macdonald, N., 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., Horstmann, D., Kçira, D., Klanner, R., Lohrmann, E., Poelz, G., Schott, W., 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., Barreiro, F., Fernández, J. P., García, G., Glasman, C., Hernández, J. M., Hervás, L., Labarga, L., Martínez, M., Peso, J. del, Puga, J., Terrón, J., Trocóniz, J. F. de, 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, Yu. A., Khein, L. A., Korotkova, N. A., Korzhavina, I. A., Kuzinin, V. A., Lukina, O. Yu., Proskuryakov, A. S., Shcheglova, L. M., Solomin, A. N., Zotkin, S. A., Bokel, C., Botje, M., Brümmer, N., Engelen, J., Koffeman, E., Kooijman, P., van Sighem, A., Tiecke, H., Tuning, N., Verkerke, W., Vossebeld, J., Wiggers, L., Wolf, E. de, 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., Große-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., Corso, F. Dal, 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., Hartner, G. F., Joo, K. K., Levman, G. M., Martin, J. F., Orr, R. S., Polenz, S., Sabetfakhri, A., Simmons, D., Teuscher, R. J., 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., 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.
Abstract: Differential dijet cross sections have been measured with the ZEUS detector for photoproduction events in which the hadronic final state containing the jets is separated with respect to the outgoing proton direction by a large rapidity gap. The cross section has been measured as a function of the fraction of the photon (ϰγOBS) and pomeron (βOBS) momentum participating in the production of the dijet system. The observed ϰγOBSdependence shows evidence for the presence of a resolved- as well as a direct-photon component. The measured cross section da/dβOBSincreases as βOBSincreases indicating that there is a sizeable contribution to dijet production from those events in which a large fraction of the pomeron momentum participates in the hard scattering. These cross sections and the ZEUS measurements of the diffractive structure function can be described by calculations based on parton densities in the pomeron which evolve according to the QCD evolution equations and include a substantial hard momentum component of gluons in the pomeron.
Published: 1998
Full Text: View/download PDF

46. Total cross-section measurement of π−photoproduction on deuteron in the first-resonance region

Author: Chiefari, G., Drago, E., Napolitano, M., Sciacca, C., and Votano, L.
Published: 1975
Full Text: View/download PDF

47. The formation of P11(1470) resonance in the γ-n interaction

Author: Carbonara, F., Fiore, L., Gialanella, G., Napolitano, M., Rinzivillo, R., Piazza, A., Susinno, G., Lodi-Rizzini, E., Mantovani, G. C., Piazzoli, A., Rossi, V., and Votano, L.
Published: 1971
Full Text: View/download PDF

48. Plastic scintillator bar with WLS fiber calorimeter for neutrino physics

Author: Giannini, G., Santin, G., Spinetti, M., Votano, L., and Hoepfner, K.
Published: 2001
Full Text: View/download PDF

49. The ultracryogenic gravitational wave detector NAUTILUS

Author: Astone, P., Bassan, M., Bonifazi, P., Carelli, P., Coccia, E., Cosmelli, C., Fafone, V., Frasca, S., Marini, A., Mazzitelli, G., Minenkov, Y., Modena, I., Modestino, G., Moleti, A., Pallottino, G., Papa, M., Pizzella, G., Rapagnani, P., Ricci, F., Ronga, F., Terenzi, R., Visco, M., and Votano, L.
Abstract: Without Abstract:
Published: 1996
Full Text: View/download PDF

50. The formation of P11(1470) resonance in the γ-n interaction

Author: Carbonara, F., Fiore, L., Gialanella, G., Napolitano, M., Rinzivillo, R., Piazza, A., Susinno, G., Lodi-Rizzini, E., Mantovani, G., Piazzoli, A., Rossi, V., and Votano, L.
Published: 1970
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Publication Type

Journal

Database

52 results on '"Votano, L."'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources