Measurement of dijet photoproduction for events with a leading neutron at HERA
Autor: | Chekanov, S., Derrick, M., Magill, S., Musgrave, B., Nicholass, D., Repond, J., Yoshida, R., Mattingly, M. C. K., Antonioli, P., Bari, G., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Cindolo, F., Corradi, M., Iacobucci, G., Margotti, A., Nania, R., Polini, A., Antonelli, S., Basile, M., Bindi, M., Cifarelli, L., Contin, A., Pasquale, S. D., Sartorelli, G., Zichichi, A., Bartsch, D., Brock, I., Hartmann, H., Hilger, E., Jakob, H. P., Jungst, M., Nuncio Quiroz, A. E., Paul, E., Samson, U., Schonberg, V., Shehzadi, R., Wlasenko, M., Morris, J. D., Kaur, M., Kaur, P., Singh, I., Capua, M., Fazio, S., Mastroberardino, A., Schioppa, M., Susinno, G., Tassi, E., Kim, J. Y., Ibrahim, Z. A., Idris, F. M., Kamaluddin, B., Abdullah, W. A. T. W., Ning, Y., Ren, Z., Sciulli, F., Chwastowski, J., Eskreys, A., Figiel, J., Galas, A., Olkiewicz, K., Pawlik, B., Stopa, P., Zawiejski, L., Adamczyk, L., Bold, T., Grabowska Bold, I., Kisielewska, D., Lukasik, J., Przybycien, M., Suszycki, L., Kotanski, A., Slominski, W., Bachynska, O., Behnke, O., Behr, J., Behrens, U., Blohm, C., Borras, K., Bot, D., Ciesielski, R., Coppola, N., Fang, S., Geiser, A., Gottlicher, P., Grebenyuk, J., Gregor, I., Haas, T., Hain, W., Huttmann, A., Januschek, F., Kahle, B., Katkov, I. I., Klein, U., Kotz, U., Kowalski, H., Libov, V., Lisovyi, M., Lobodzinska, E., Lohr, B., Mankel, R., Melzer Pellmann, I. A., Miglioranzi, S., Montanari, A., Namsoo, T., Notz, D., Parenti, A., Roloff, P., Rubinsky, I., Schneekloth, U., Spiridonov, A., Szuba, D., Szuba, J., Theedt, T., Tomaszewska, J., Wolf, G., Wrona, K., Yagues Molina, A. G., Youngman, C., Zeuner, W., Drugakov, V., Lohmann, W., Schlenstedt, S., Barbagli, G., Gallo, E., Pelfer, P. G., Bamberger, A., Dobur, D., Karstens, F., Vlasov, N. N., Bussey, P. J., Doyle, A. T., Forrest, M., Saxon, D. H., Skillicorn, I. O., Gialas, I., Papageorgiu, K., Holm, U., Klanner, R., Lohrmann, E., Perrey, H., Schleper, P., Schorner Sadenius, T., Sztuk, J., Stadie, H., Turcato, M., Long, K. R., Tapper, A. D., Matsumoto, T., Nagano, K., Tokushuku, K., Yamada, S., Yamazaki, Y., Barakbaev, A. N., Boos, E. G., Pokrovskiy, N. S., Zhautykov, B. O., Aushev, V., Borodin, M., Kadenko, I., Korol, I., Kuprash, O., Lontkovskyi, D., Makarenko, I., Onishchuk, Y., Salii, A., Sorokin, I., Verbytskyi, A., Viazlo, V., Volynets, O., Zenaiev, O., Zolko, M., Son, D., Favereau, J. d., Piotrzkowski, K., Barreiro, F., Glasman, C., Jimenez, M., Peso, J. d., Ron, E., Soares, M., Terron, J., Uribe Estrada, C., Corriveau, F., Schwartz, J., Zhou, C., Tsurugai, T., Antonov, A., Dolgoshein, B. A., Gladkov, D., Sosnovtsev, V., Stifutkin, A., Suchkov, S., Dementiev, R. K., Ermolov, P. F., Gladilin, L. K., Golubkov, Y. A., Khein, L. A., Korzhavina, I. A., Kuzmin, V. A., Levchenko, B. B., Lukina, O. Y., Proskuryakov, A. S., Shcheglova, L. M., Zotkin, D. S., Abt, I., Caldwell, A., Kollar, D., Reisert, B., Schmidke, W. B., Grigorescu, G., Keramidas, A., Koffeman, E., Kooijman, P., Pellegrino, A., Tiecke, H., Vazquez, M., Wiggers, L., Brummer, N., Bylsma, B., Durkin, L. S., Lee, A., Ling, T. Y., Cooper Sarkar, A. M., Devenish, R. C. E., Ferrando, J., Foster, B., Gwenlan, C., Horton, K., Oliver, K., Robertson, A., Walczak, R., Bertolin, A., Corso, F. D., Dusini, S., Longhin, A., Stanco, L., Brugnera, R., Carlin, R., Garfagnini, A., Limentani, S., B. Y., Oh, Raval, A., Whitmore, J. J., Iga, Y., D'Agostini, G., Marini, G., Nigro, A., Hart, J. C., Abramowicz, H., Ingbir, R., Kananov, S., Levy, A., Stern, A., Ishitsuka, M., Kanno, T., Kuze, M., Maeda, J., Hori, R., Okazaki, N., Shimizu, S., Hamatsu, R., Kitamura, S., Ota, O., Y. D., Ri, Costa, Marco, Ferrero, Maria Italia, Monaco, Vincenzo, Sacchi, Roberto, Sola, Valentina, Solano, Ada Maria, Arneodo, M., Ruspa, M., Fourletov, S., Martin, J. F., Stewart, T. P., Boutle, S. K., Butterworth, J. M., Jones, T. W., Loizides, J. H., Wing, M., Brzozowska, B., Ciborowski, J., Grzelak, G., Kulinski, P., Luzniak, P., Malka, J., Nowak, R. J., Pawlak, J. M., Perlanski, W., Zarnecki, A. F., Adamus, M., Plucinski, P., Tymieniecka, T., Eisenberg, Y., Hochman, D., Karshon, U., Brownson, E., Reeder, D. D., Savin, A. A., Smith, W. H., Wolfe, H., Bhadra, S., Catterall, C. D., Hartner, G., Noor, U., Whyte, J., Collaboration, Z. |
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Přispěvatelé: | Precision Frontier, Zeus (IHEF, IoP, FNWI), S. CHEKANOV, M. DERRICK, S. MAGILL, B. MUSGRAVE, D. NICHOLASS, J. REPOND, R. YOSHIDA, M.C.K. MATTINGLY, P. ANTONIOLI, G. BARI, L. BELLAGAMBA, D. BOSCHERINI, A. BRUNI, G. BRUNI, F. CINDOLO, M. CORRADI, G. IACOBUCCI, A. MARGOTTI, R. NANIA, A. POLINI, S. ANTONELLI, M. BASILE, M. BINDI, L. CIFARELLI, A. CONTIN, S. DE PASQUALE, G. SARTORELLI, A. ZICHICHI, D. BARTSCH, I. BROCK, H. HARTMANN, E. HILGER, H.-P. JAKOB, M. JÜNGST, A.E. NUNCIO-QUIROZ, E. PAUL, U. SAMSON, V. SCHÖNBERG, R. SHEHZADI, M. WLASENKO, J.D. MORRIS, M. KAUR, P. KAUR, I. SINGH, M. CAPUA, S. FAZIO, A. MASTROBERARDINO, M. SCHIOPPA, G. SUSINNO, E. TASSI, J.Y. KIM, Z.A. IBRAHIM, F. MOHAMAD IDRIS, B. KAMALUDDIN, W.A.T. WAN ABDULLAH, Y. NING, Z. REN, F. SCIULLI, J. CHWASTOWSKI, A. ESKREYS, J. FIGIEL, A. GALAS, K. OLKIEWICZ, B. PAWLIK, P. STOPA, L. ZAWIEJSKI, L. ADAMCZYK, T. BOLD, I. GRABOWSKA-BOLD, D. KISIELEWSKA, J. LUKASIK, M. PRZYBYCIEN, L. SUSZYCKI, A. KOTANSKI, W. SLOMINSKI, O. BEHNKE, J. BEHR, U. BEHRENS, C. BLOHM, K. BORRAS, D. BOT, R. CIESIELSKI, N. COPPOLA, S. FANG, A. GEISER, P. GÖTTLICHER, J. GREBENYUK, I. GREGOR, O. GUTSCHE, T. HAAS, W. HAIN, A. HÜTTMANN, J. JANUSCHEK, B. KAHLE, I.I. KATKOV, U. KLEIN, U. KÖTZ, H. KOWALSKI, M. LISOVYI, E. LOBODZINSKA, B. LÖHR, R. MANKEL, I.-A. MELZER-PELLMANN, S. MIGLIORANZI, A. MONTANARI, T. NAMSOO, D. NOTZ, A. PARENTI, P. ROLOFF, I. RUBINSKY, U. SCHNEEKLOTH, A. SPIRIDONOV, D. SZUBA, J. SZUBA, T. THEEDT, G. WOLF, K. WRONA, A.G. YAGUES MOLINA, C. YOUNGMAN, W. ZEUNER, V. DRUGAKOV, W. LOHMANN, S. SCHLENSTEDT, G. BARBAGLI, E. GALLO, P. G. PELFER, A. BAMBERGER, D. DOBUR, F. KARSTENS, N.N. VLASOV, P.J. BUSSEY, A.T. DOYLE, M. FORREST, M. ROSIN, D.H. SAXON, I.O. SKILLICORN, I. GIALAS, K. PAPAGEORGIU, U. HOLM, R. KLANNER, E. LOHRMANN, H. PERREY, P. SCHLEPER, T. SCHORNER-SADENIUS, J. SZTUK, H.STADIE, M. TURCATO, K.R. LONG, A.D. TAPPER, T. MATSUMOTO, K. NAGANO, K. TOKUSHUKU, S. YAMADA, Y. YAMAZAKI, A.N. BARAKBAEV, E.G. BOOS, N.S. POKROVSKIY, B.O. ZHAUTYKOV, V. AUSHEV, O. BACHYNSKA, M. BORODIN, I. KADENKO, A. KOZULIA, V. LIBOV, D. LONTKOVSKYI, I. MAKARENKO, IU. SOROKIN, A. VERBYTSKYI, O. VOLYNETS, M. ZOLKO, D. SON, J. DE FAVEREAU, K. PIOTRZKOWSKI, F. BARREIRO, C. GLASMAN, M. JIMENEZ, J. DEL PESO, E. RON, J. TERRON, C. URIBE-ESTRADA, F. CORRIVEAU, J. SCHWARTZ, C. ZHOU, T. TSURUGAI, A. ANTONOV, B.A. DOLGOSHEIN, D. GLADKOV, V. SOSNOVTSEV, A. STIFUTKIN, S. SUCHKOV, R.K. DEMENTIEV, P.F.ERMOLOV, L.K. GLADILIN, YU.A. GOLUBKOV, L.A. KHEIN, I.A. KORZHAVINA, V.A.KUZMIN, B.B. LEVCHENKO, O.YU. LUKINA, A.S. PROSKURYAKOV, L.M. SHCHEGLOVA, D.S. ZOTKIN, I. ABT, A. CALDWELL, D. KOLLAR, B. REISERT, W.B. SCHMIDKE, G. GRIGORESCU, A. KERAMIDAS, E. KOFFEMAN, P. KOOIJMAN, A. PELLEGRINO, H. TIECKE, M. VÁZQUEZ, L. WIGGERS, N. BRÜMMER, B. BYLSMA, L.S. DURKIN, A. LEE, T.Y. LING, A.M. COOPER-SARKAR, R.C.E. DEVENISH, J. FERRANDO, B.FOSTER, C. GWENLAN, K. HORTON, K. OLIVER, A. ROBERTSON, R. WALCZAK, A. BERTOLIN, R. BRUGNERA, R. CARLIN, F. DAL CORSO, S. DUSINI, A. GARFAGNINI, S. LIMENTANI, A. LONGHIN, L. STANCO, B.Y. OH, A. RAVAL, J.J. WHITMORE, Y. IGA, G. D'AGOSTINI, G. MARINI, A. NIGRO, J.C. HART, H. ABRAMOWICZ, R. INGBIR, S. KANANOV, A. LEVY, A. STERN, M. ISHITSUKA, T. KANNO, M. KUZE, J. MAEDA, R. HORI, S. KAGAWA, N. OKAZAKI, S. SHIMIZU, T. TAWARA, R. HAMATSU, H. KAJI, S. KITAMURA, O. OTA, Y.D. RI, M.COSTA, M.I. FERRERO, V. MONACO, R. SACCHI, A. SOLANO, V. SOLA, M. ARNEODO, M. RUSPA, S. FOURLETOV, J.F. MARTIN, T.P. STEWART, S.K. BOUTLE, J.M. BUTTERWORTH, T.W. JONES, J.H. LOIZIDES, M. WING, B. BRZOZOWSKA, J. CIBOROWSKI, G. GRZELAK, P. KULINSKI, P. LUZNIAK, J. MALKA, R.J.NOWAK, J.M. PAWLAK, W. PERLANSKI, T. TYMIENIECKA, A.F. ZARNECKI, M. ADAMUS, P. PLUCINSKI, Y. EISENBERG, D. HOCHMAN, U. KARSHON, E. BROWNSON, D.D. REEDER, A.A. SAVIN, W.H. SMITH, H. WOLFE, S. BHADRA, C.D. CATTERALL, G. HARTNER, U. NOOR, J. WHYTE. |
Jazyk: | angličtina |
Rok vydání: | 2009 |
Předmět: |
Nuclear and High Energy Physics
Particle physics Proton LUND MONTE-CARLO Astrophysics::High Energy Astrophysical Phenomena HERA Nuclear Theory FOS: Physical sciences 7. Clean energy 01 natural sciences JET FRAGMENTATION CROSS-SECTIONS High Energy Physics - Experiment Nuclear physics Momentum DEEP-INELASTIC SCATTERING High Energy Physics - Experiment (hep-ex) High Energy Physics ZEUS Collaboration 0103 physical sciences ddc:530 Neutron 010306 general physics Nuclear Experiment Physics Jet (fluid) Luminosity (scattering theory) ZEUS (particle detector) 010308 nuclear & particles physics ZEUS BARREL CALORIMETER Deep inelastic scattering CENTRAL TRACKING DETECTOR GEV-C PARTON DISTRIBUTIONS High Energy Physics::Experiment HADRON-COLLISIONS INCLUSIVE REACTIONS |
Zdroj: | Red Report (2009). Nuclear Physics B, 827(1-2), 1-33. ELSEVIER SCIENCE BV Nuclear Physics B, 827(1-2), 1-33. Elsevier Nuclear physics / B 827, 1-33 (2010). doi:10.1016/j.nuclphysb.2009.10.002 |
ISSN: | 0550-3213 |
Popis: | Differential cross sections for dijet photoproduction and this process in association with a leading neutron, e+ + p -> e+ + jet + jet + X (+ n), have been measured with the ZEUS detector at HERA using an integrated luminosity of 40 pb-1. The fraction of dijet events with a leading neutron was studied as a function of different jet and event variables. Single- and double-differential cross sections are presented as a function of the longitudinal fraction of the proton momentum carried by the leading neutron, xL, and of its transverse momentum squared, pT^2. The dijet data are compared to inclusive DIS and photoproduction results; they are all consistent with a simple pion-exchange model. The neutron yield as a function of xL was found to depend only on the fraction of the proton beam energy going into the forward region, independent of the hard process. No firm conclusion can be drawn on the presence of rescattering effects. 40 pages, 18 figures |
Databáze: | OpenAIRE |
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