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1. SECURITY OPERATIONS CENTER AS A SERVICE BASED ON SIEM

Author: V. O. Bolilyi, L. P. Sukhovirska, and O. M. Lunhol
Abstract: This study examines the Security Operations Center, which provides detection and analysis of cybersecurity, rapid response, and prevention of cyber attacks. Security Operations Center technologies are used to provide visibility and enable analysts to protect against attacks. The algorithm of presenting the topic «Security Center» during the teaching of the discipline «Security of programs and data» at the Volodymyr Vynnychenko Central Ukrainian State Pedagogical University is shown, namely the problems of implementation of event monitoring systems «Security information and event management», types of operational centers, methods of building internal operational security centers. Subject competencies are formed in students: to classify, identify and protect information processing facilities from unauthorized access and computer viruses, to develop individual access control and information protection systems. The process of implementing Security information and event management systems at the enterprise is shown, the main mechanisms of this system using a hierarchical model, the main tasks of the security operational center, the key parameters of the Security Operations Center (organizational model, performance of functions that go beyond the tasks, level of authority), basic rules of correlation. The commercial security operations center SOC as a Service is considered, which is designed to help work with a huge amount of information, real-time monitoring and response to attacks. During the laboratory classes, the students analyzed the companies that provide security operations center services (Information Systems Security Partners, Octave Cybersecurity, Infopulse, Omega Security Service) and studied the factors that affect companies when choosing the type Security Operations Center. Key words: Security Operations Center, SEIM-systems, cybersecurity, SOC as a Service.
Published: 2021

2. Exclusive electroproduction of two pions at HERA

Author: H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A. N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E. G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P. J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C. D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, F. CINDOLO, A. M. COOPER SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R. K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R. C. E. DEVENISH, D. DOBUR, B. A. DOLGOSHEIN, G. DOLINSKA, A. T. DOYLE, V. DRUGAKOV, L. S. DURKIN, S. DUSINI, Y. EISENBERG, P. F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M. I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L. K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, Y.U. A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J. C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z. A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H. P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T. W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I. I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L. A. KHEIN, J. Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I. A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B. B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T. Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K. R. LONG, A. LONGHIN, D. LONTKOVSKYI, O. Y.U. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J. F. MARTIN, A. MASTROBERARDINO, M. C. K. MATTINGLY, I. A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J. D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R. J. NOWAK, A. E. NUNCIO QUIROZ, B. Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, Y.U. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J. M. PAWLAK, B. PAWLIK, P. G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N. S. POKROVSKIY, A. POLINI, A. S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D. D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y. D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, A. A. SAVIN, D. H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W. B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER SADENIUS, J. SCHWARTZ, F. SCIULLI, L. M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I. O. SKILLICORN, W. SLOMI´ NSKI, W. H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T. P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK DAMBIETZ, D. SZUBA, J. SZUBA, A. D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N. N. VLASOV, O. VOLYNETS, R. WALCZAK, W. A. T. WAN ABDULLAH, J. J. WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K. WRONA, A. G. YAGÜES MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A. F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B. O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, D. S. ZOTKIN, BASILE, MAURIZIO, CIFARELLI, LUISA, CONTIN, ANDREA, SARTORELLI, GABRIELLA, Precision Frontier, Zeus (IHEF, IoP, FNWI), H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, and D.S. ZOTKIN
Subjects: Particle physics, TAU-DECAYS, Physics and Astronomy (miscellaneous), J/PSI MESONS, Nuclear Theory, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Pion, Pion em form factor, 0103 physical sciences, SCATTERING, ddc:530, RHO-MESON, CALORIMETER, Nuclear Experiment, 010306 general physics, DIFFRACTIVE ELECTROPRODUCTION, Engineering (miscellaneous), Physics, FORM-FACTOR, 010308 nuclear & particles physics, Two-pion exclusive electroproduction, Sigma, ZEUS, CENTRAL TRACKING DETECTOR, VECTOR-MESON PRODUCTION, PHOTOPRODUCTION, HERA, Vertex (geometry), High Energy Physics::Experiment, ZEUS experiment
Abstract: The exclusive electroproduction of two pions in the mass range 0.4 < M{\pi}{\pi} < 2.5 GeV has been studied with the ZEUS detector at HERA using an integrated luminosity of 82 pb-1. The analysis was carried out in the kinematic range of 2 < Q2 < 80 GeV2, 32 < W < 180 GeV and |t| < 0.6 GeV2, where Q2 is the photon virtuality, W is the photon-proton centre-of-mass energy and t is the squared four-momentum transfer at the proton vertex. The two-pion invariant-mass distribution is interpreted in terms of the pion electromagnetic form factor, |F(M{\pi}{\pi})|, assuming that the studied mass range includes the contributions of the {\rho}, {\rho}' and {\rho}" vector-meson states. The masses and widths of the resonances were obtained and the Q2 dependence of the cross-section ratios {\sigma}({\rho}' \rightarrow {\pi}{\pi})/{\sigma}({\rho}) and {\sigma}({\rho}" \rightarrow {\pi}{\pi})/{\sigma}({\rho}) was extracted. The pion form factor obtained in the present analysis is compared to that obtained in e+e- \rightarrow {\pi}+{\pi}-., Comment: 24 pages, including 11 figures
Published: 2012

3. Measurement of the t dependence in exclusive photoproduction of $\Upsilon$(1S) mesons at HERA

Author: H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A. N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E. G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P. J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C. D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, F. CINDOLO, A. M. COOPER SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R. K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R. C. E. DEVENISH, D. DOBUR, B. A. DOLGOSHEIN, G. DOLINSKA, A. T. DOYLE, V. DRUGAKOV, L. S. DURKIN, S. DUSINI, Y. EISENBERG, P. F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M. I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L. K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, Y.U. A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J. C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z. A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H. P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T. W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I. I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L. A. KHEIN, J. Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I. A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B. B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T. Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K. R. LONG, A. LONGHIN, D. LONTKOVSKYI, O. Y.U. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J. F. MARTIN, A. MASTROBERARDINO, M. C. K. MATTINGLY, I. A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J. D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R. J. NOWAK, A. E. NUNCIO QUIROZ, B. Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, Y.U. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J. M. PAWLAK, B. PAWLIK, P. G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N. S. POKROVSKIY, A. POLINI, A. S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D. D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y. D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, A. A. SAVIN, D. H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W. B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER SADENIUS, J. SCHWARTZ, F. SCIULLI, L. M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I. O. SKILLICORN, W. SLOMI´ NSKI, W. H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T. P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK DAMBIETZ, D. SZUBA, J. SZUBA, A. D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N. N. VLASOV, O. VOLYNETS, R. WALCZAK, W. A. T. WAN ABDULLAH, J. J. WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K. WRONA, A. G. YAGÜES MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A. F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B. O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, D. S. ZOTKIN, BASILE, MAURIZIO, CIFARELLI, LUISA, CONTIN, ANDREA, SARTORELLI, GABRIELLA, H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, and D.S. ZOTKIN
Subjects: High Energy Physics - Experiment (hep-ex), Upsilon(1S) photoproduction, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, High Energy Physics::Experiment, ep collisions, ddc:530, Nuclear Experiment, High Energy Physics - Experiment, ZEUS experiment
Abstract: The exclusive photoproduction reaction gamma p -> Upsilon(1S) p has been studied with the ZEUS detector in ep collisions at HERA using an integrated luminosity of 468 pb^-1. The measurement covers the kinematic range 60 Upsilon(1S) p cross section., Comment: 15 pages, 4 figures; http://dx.doi.org/10.1016/j.physletb.2012.01.009
Published: 2012

4. Study of tau-pair production at HERA

Author: Katsuo Tokushuku, A. Longhin, F. Dal Corso, P. Stopa, A. Nigro, Francois Corriveau, C. Uribe-Estrada, R. Yoshida, F. Mohamad Idris, M. Jüngst, Ben Bylsma, D. Szuba, A. Kotański, O. Gogota, Y. Eisenberg, I. M. Gregor, M. Wlasenko, Af Zarnecki, H. Hartmann, D. Hochman, N. Brümmer, J. M. Pawlak, Anselmo Margotti, J. Grebenyuk, Alexander Tapper, Edouard Boos, T. Tsurugai, L.W. Wiggers, A. Garfagnini, Claudia Glasman, S. Yamada, A. Keramidas, V. Drugakov, N. Zhmak, J. Szuba, A. A. Savin, A. Bertolin, U. Samson, Lev Khein, R. Mankel, Wolfgang Lohmann, Halina Abramowicz, T. Tymieniecka, Krzysztof Piotrzkowski, Allen Caldwell, S. Fourletov, Iwona Grabowska-Bold, L. Zawiejski, S. Kananov, E. Brownson, M. Turcato, A. Antonov, R. Walczak, Cd Catterall, Ada Solano, Kunihiro Nagano, Y. D. Ri, T. Namsoo, Yuji Yamazaki, S. Limentani, Rosario Nania, D. Nicholass, L. M. Shcheglova, G. D'Agostini, Igor Katkov, T. Y. Ling, Jan Figiel, P. Plucinski, B. Musgrave, P. Kaur, Zainol Abidin Ibrahim, M. Derrick, I. Singh, Kenneth Long, Michele Arneodo, N. Bartosik, G. Grigorescu, I. Gialas, Giuseppe Iacobucci, G. Bari, H.G.J.M. Tiecke, A. Parenti, W. Perlanski, G. F. Susinno, P. Roloff, Giuseppe Barbagli, P. Göttlicher, B. B. Levchenko, J. Maeda, Giovanna Bruni, A. Salii, A. Stifutkin, L. Stanco, R. Ingbir, D. Notz, H.-P. Jakob, Jose Repond, D.S. Zotkin, A. Eskreys, Shinichi Shimizu, Gabriella Sartorelli, Uta Klein, I. O. Skillicorn, J. Sztuk-Dambietz, A. E. Nuncio-Quiroz, W. A. T. Wan Abdullah, R. Brugnera, N. Okazaki, T. W. Jones, Janna Katharina Behr, O. Viazlo, K. Oliver, O. Tomalak, U. Kötz, D. Boscherini, Ewelina Lobodzinska, V. Sosnovtsev, Y. Aushev, M. Costa, J. F. Martin, Y. Onishchuk, Yu. A. Golubkov, E. Paul, Kerstin Borras, D. Bot, Fernando Barreiro, M. Vázquez, John Morris, Dong-Chul Son, O. Yu. Lukina, B. Reisert, T. Kanno, D. Gladkov, Y. Ning, U. Schneekloth, Marco Schioppa, W. Słomiński, P. G. Pelfer, Ulf Behrens, Federico Cindolo, H. Kowalski, D. D. Reeder, J. Chwastowski, J. Malka, P.F. Ermolov, S.I. Suchkov, K. Olkiewicz, Guenter Wolf, B. Brzozowska, M. Jimenez, S. Kitamura, J. Tomaszewska, S. Fang, Tobias M. Haas, R. J. Nowak, C. Blohm, Alexander Spiridonov, I. A. Melzer-Pellmann, B. Kahle, Ramoona Shehzadi, E. Ron, Roberto Carlin, Sebastian Mergelmeyer, Andrea Contin, G. Hartner, Anna Mastroberardino, R.C.E. Devenish, Didar Dobur, R. Hori, O. Zenaiev, Marcella Capua, P. Łużniak, Mykhailo Lisovyi, Amanda Cooper-Sarkar, Valentina Sola, F. J. Sciulli, V. Monaco, W. Hain, T. Schörner-Sadenius, J. Ciborowski, James Ferrando, O. Volynets, L. Suszycki, N.N. Vlasov, J. Whyte, Silvia Miglioranzi, Manjit Kaur, Alessandro Montanari, T. Theedt, S. K. Boutle, Hartmut Stadie, Leszek Adamczyk, B. Löhr, S. Magill, A. Polini, Matthew Forrest, E. Hilger, Ie. Korol, M. Adamus, Zhongliang Ren, K. Wrona, B. Foster, W. B. Schmidke, U. Karshon, A.G. Yagües-Molina, S. Dusini, K. Mujkic, G. Dolinska, J. Y. Kim, B.Y. Oh, Pietro Antonioli, L. K. Gladilin, W. H. Smith, M.I. Ferrero, R. K. Dementiev, K. Papageorgiu, Hanno Perrey, Elisabetta Gallo, J. Del Peso, A. Zichichi, S. Bhadra, O. Bolilyi, N.S. Pokrovskiy, O. Kuprash, Marcello Bindi, B. Pawlik, A. N. Barakbaev, V. Bokhonov, A. Pellegrino, F. Karstens, M.C.K. Mattingly, L. S. Durkin, R. Hamatsu, O. Bachynska, Els Koffeman, Peter Schleper, A. Stern, P. Kulinski, G. Marini, A. Galas, Wolfram Dietrich Zeuner, A. Bamberger, J.H. Loizides, R. Klanner, N. Coppola, J. Schwartz, G. Grzelak, Claire Gwenlan, F. Januschek, A. Raval, C. Zhou, Danuta Kisielewska, I. A. Korzhavina, A. Bruni, T. P. Stewart, D. Lontkovskyi, C. Youngman, L. Cifarelli, Z. Zulkapli, Enrico Tassi, J. J. Whitmore, A.G. Robertson, Mariusz Przybycien, M. Corradi, I. Kadenko, M. Zolko, M. Basile, K. Horton, Matthew Wing, V. Aushev, Sergei Chekanov, Dirk-Uwe Bartsch, A. Lee, L. Bellagamba, U. Noor, B.O. Zhautykov, B. Kamaluddin, S. Schlenstedt, P. J. Bussey, V. Schönberg, Jonathan Butterworth, John Hart, Vladyslav Libov, Ian Brock, A. Hüttmann, D. H. Saxon, I. Rubinsky, Robert Ciesielski, O. Behnke, A.S. Proskuryakov, S. De Pasquale, A. T. Doyle, R. Aggarwal, P.M. Kooijman, B. A. Dolgoshein, Orel Gueta, Andrii Verbytskyi, Marta Ruspa, Y. Iga, Achim Geiser, S. Fazio, Roberto Sacchi, H. Wolfe, Aharon Levy, Juan Terron, M. Kuze, S. Antonelli, E. Lohrmann, I. Makarenko, M. Ishitsuka, Grzegorz Gach, Tomasz Bold, Zeus (IHEF, IoP, FNWI), UAM. Departamento de Física Teórica, H. ABRAMOWICZ, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER-PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, M. ZOLKO, D.S. ZOTKIN, and Z. ZULKAPLI
Subjects: Particle physics, Nuclear and High Energy Physics, HERA, FOS: Physical sciences, 01 natural sciences, Standard Model, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Lepton-nucleon scattering, 0103 physical sciences, Bethe-Heitler processes, Tau-pair production, Invariant mass, ddc:530, High Energy Physics, 010306 general physics, ZEUS Collaboration, Physics, Muon, ZEUS (particle detector), Luminosity (scattering theory), 010308 nuclear & particles physics, Física, Pair production, High Energy Physics::Experiment, Lepton, ZEUS experiment
Abstract: Journal of High Energy Physics 2011.2 (2011): 117 reproduced by permission of Scuola Internazionale Superiore di Studi Avanzati (SISSA), A study of events containing two tau leptons with high transverse momentum has been performed with the ZEUS detector at HERA, using a data sample corresponding to an integrated luminosity of 0.33 fb-1. The tau candidates were identified from their decays into electrons, muons or hadronic jets. The number of tau-pair candidates has been compared with the prediction from the Standard Model, where the largest contribution is expected from Bethe-Heitler processes. The total visible cross section was extracted. Standard Model expectations agree well with the measured distributions, also at high invariant mass of the tau pair.
Published: 2011

5. Scaled momentum distributions for $ K_S^0 $ KS and $ \Lambda /\bar{\Lambda } $ in DIS at HERA

Author: H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A. N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E. G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P. J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C. D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, F. CINDOLO, A. M. COOPER SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R. K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R. C. E. DEVENISH, D. DOBUR, B. A. DOLGOSHEIN, G. DOLINSKA, A. T. DOYLE, V. DRUGAKOV, L. S. DURKIN, S. DUSINI, Y. EISENBERG, P. F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M. I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L. K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, Y.U. A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J. C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z. A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H. P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T. W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I. I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L. A. KHEIN, J. Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I. A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B. B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T. Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K. R. LONG, A. LONGHIN, D. LONTKOVSKYI, O. Y.U. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J. F. MARTIN, A. MASTROBERARDINO, M. C. K. MATTINGLY, I. A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J. D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R. J. NOWAK, A. E. NUNCIO QUIROZ, B. Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, Y.U. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J. M. PAWLAK, B. PAWLIK, P. G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N. S. POKROVSKIY, A. POLINI, A. S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D. D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y. D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, A. A. SAVIN, D. H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W. B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER SADENIUS, J. SCHWARTZ, F. SCIULLI, L. M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I. O. SKILLICORN, W. SLOMI´ NSKI, W. H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T. P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK DAMBIETZ, D. SZUBA, J. SZUBA, A. D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N. N. VLASOV, O. VOLYNETS, R. WALCZAK, W. A. T. WAN ABDULLAH, J. J. WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K. WRONA, A. G. YAGÜES MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A. F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B. O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, D. S. ZOTKIN, BASILE, MAURIZIO, CIFARELLI, LUISA, CONTIN, ANDREA, SARTORELLI, GABRIELLA, H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, Z. ZOLKAPLI, M. ZOLKO, and D.S. ZOTKIN
Subjects: Quark, Particle physics, Nuclear and High Energy Physics, Photon, Hadron, Monte Carlo method, FOS: Physical sciences, Lambda, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, ddc:530, 010306 general physics, Nuclear Experiment, Strange hadron production, Quantum chromodynamics, Physics, Bjorken scaling, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, lepton-nucleon scattering, HERA, 16. Peace & justice, Gluon, High Energy Physics::Experiment, ZEUS experiment
Abstract: Scaled momentum distributions for the strange hadrons K0s and Lambda/bar Lambda were measured in deep inelastic ep scattering with the ZEUS detector at HERA using an integrated luminosity of 330 pb-1. The evolution of these distributions with the photon virtuality, Q2, was studied in the kinematic region 10, Comment: 34 pages, 8 figures
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6. Angular correlations in three-jet events inepcollisions at HERA

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

7. Measurement of the energy dependence of the total photon-proton cross section at HERA

Author: Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Aggarwal, R., Antonelli, S., Antonioli, P., Antonov, A., Arneodo, M., Aushev, V., Aushev, Y., Bachynska, O., Bamberger, A., Barakbaev, A. N., Barbagli, G., Bari, G., Barreiro, F., Bartsch, D., Basile, M., Behnke, O., Behr, J., Behrens, U., Bellagamba, L., Bertolin, A., Bhadra, S., Bindi, M., Blohm, C., Bold, T., Boos, E. G., Borodin, M., Borras, K., Boscherini, D., Bot, D., Boutle, S. K., Brock, I., Brownson, E., Brugnera, R., Brummer, N., Bruni, A., Bruni, G., Brzozowska, B., Bussey, P. J., Butterworth, J. M., Bylsma, B., Caldwell, A., Capua, M., Carlin, R., Catterall, C. D., Chekanov, S., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cifarelli, L., Cindolo, F., Contin, A., Cooper Sarkar, A. M., Coppola, N., Corradi, M., Corriveau, F., Costa, M., D'Agostini, Giulio, Dal Corso, F., De Favereau, J., Del Peso, J., Dementiev, R. K., De Pasquale, S., Derrick, M., Devenish, R. C. E., Dobur, D., Dolgoshein, B. A., Doyle, A. T., Drugakov, V., Durkin, L. S., Dusini, S., Eisenberg, Y., Ermolov, P. F., Eskreys, A., Fang, S., Fazio, S., Ferrando, J., Ferrero, M. I., Figiel, J., Forrest, M., Foster, B., Fourletov, S., Gach, G., Galas, A., Gallo, E., Garfagnini, A., Geiser, A., Gialas, I., Gladilin, L. K., Gladkov, D., Glasman, C., Gogota, O., Golubkov, Yu A., Gottlicher, P., Grabowska Bold, I., Grebenyuk, J., Gregor, I., Grigorescu, G., Grzelak, G., Gwenlan, C., Haas, T., Hain, W., Hamatsu, R., Hart, J. C., Hartmann, H., Hartner, G., Hilger, E., Hochman, D., Holm, U., Hori, R., Horton, K., Huttmann, A., Iacobucci, G., Ibrahim, Z. A., Iga, Y., Ingbir, R., Ishitsuka, M., Jakob, H. P., Januschek, F., Jimenez, M., Jones, T. W., Jungst, M., Kadenko, I., Kahle, B., Kamaluddin, B., Kananov, S., Kanno, T., Karshon, U., Karstens, F., Katkov, I. I., Kaur, M., Kaur, P., Keramidas, A., Khein, L. A., Kim, J. Y., Kisielewska, D., Kitamura, S., Klanner, R., Klein, U., Koffeman, E., Kollar, D., Kooijman, P., Korol, Ie, Korzhavina, I. A., Kotanski, A., Kotz, U., Kowalski, H., Kulinski, P., Kuprash, O., Kuze, M., Kuzmin, V. A., Lee, A., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Ling, T. Y., Lisovyi, M., Lobodzinska, E., Lohmann, W., Lohr, B., Lohrmann, E., Loizides, J. H., Long, K. R., Longhin, A., Lontkovskyi, D., Yu Lukina, O., Luzniak, P., Maeda, J., Magill, S., Makarenko, I., Malka, J., Mankel, R., Margotti, A., Marini, G., Martin, J. F., Mastroberardino, A., Matsumoto, T., Mattingly, M. C. K., Melzer Pellmann, I. A., Miglioranzi, S., Mohamad Idris, F., Monaco, V., Montanari, A., Morris, J. D., Musgrave, B., Nagano, K., Namsoo, T., Nania, R., Nicholass, D., Nigro, Andrea, Ning, Y., Noor, U., Notz, D., Nowak, R. J., Nuncio Quiroz, A. E., B. Y., Oh, Okazaki, N., Oliver, K., Olkiewicz, K., Onishchuk, Yu, Ota, O., Papageorgiu, K., Parenti, A., Paul, E., Pawlak, J. M., Pawlik, B., Pelfer, P. G., Pellegrino, A., Perlanski, W., Perrey, H., Piotrzkowski, K., Plucinski, P., Pokrovskiy, N. S., Polini, A., Proskuryakov, A. S., Przybycien, M., Raval, A., Reeder, D. D., Reisert, B., Ren, Z., Repond, J., Y. D., Ri, Robertson, A., Roloff, P., Ron, E., Rubinsky, I., Ruspa, M., Sacchi, R., Salii, A., Samson, U., Sartorelli, G., Savin, A. A., Saxon, D. H., Schioppa, M., Schlenstedt, S., Schleper, P., Schmidke, W. B., Schneekloth, U., Schonberg, V., Schorner Sadenius, T., Schwartz, J., Sciulli, F., Shcheglova, L. M., Shehzadi, R., Shimizu, S., Singh, I., Skillicorn, I. O., Slominski, W., Smith, W. H., Sola, V., Solano, A., Son, D., Sosnovtsev, V., Spiridonov, A., Stadie, H., Stanco, L., Stern, A., Stewart, T. P., Stifutkin, A., Stopa, P., Suchkov, S., Susinno, G., Suszycki, L., Sztuk, J., Szuba, D., Szuba, J., Tapper, A. D., Tassi, E., Terron, J., Theedt, T., Tiecke, H., Tokushuku, K., Tomalak, O., Tomaszewska, J., Tsurugai, T., Turcato, M., Tymieniecka, T., Uribe Estrada, C., Vazquez, M., Verbytskyi, A., Viazlo, V., Vlasov, N. N., Volynets, O., Walczak, R., Wan Abdullah, W. A. T., Whitmore, J. J., Whyte, J., Wiggers, L., Wing, M., Wlasenko, M., Wolf, G., Wolfe, H., Wrona, K., Yagues Molina, A. G., Yamada, S., Yamazaki, Y., Yoshida, R., Youngman, C., Zarnecki, A. F., Zawiejski, L., Zenaiev, O., Zeuner, W., Zhautykov, B. O., Zhmak, N., Zhou, C., Zichichi, A., Zolko, M., Zotkin, D. S., Zulkapli, Z., H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER-PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, M. ZOLKO, D.S. ZOTKIN, Z. ZULKAPLI, Precision Frontier, and Zeus (IHEF, IoP, FNWI)
Subjects: Nuclear and High Energy Physics, Particle physics, LOW X, REPRESENTATION, Proton, Astrophysics::High Energy Astrophysical Phenomena, HERA, Hadron, FOS: Physical sciences, 01 natural sciences, Particle identification, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Positron, DESIGN, 0103 physical sciences, LOW Q(2), SCATTERING, ddc:530, High Energy Physics, Nuclear Experiment, 010306 general physics, ZEUS Collaboration, P system, Physics, ZEUS (particle detector), CONSTRUCTION, IDENTIFICATION, 010308 nuclear & particles physics, OF-MASS ENERGY, Energy dependence, Física, ZEUS BARREL CALORIMETER, photoproduction, energy dependence, total cross section, CENTRAL TRACKING DETECTOR, Photoproduction, Total cross section, Antimatter, High Energy Physics::Experiment, Photon-proton cross section, ZEUS experiment
Abstract: Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM, The energy dependence of the photon–proton total cross section, σγ p tot , was determined from e+p scattering data collected with the ZEUS detector at HERA at three values of the center-of-mass energy, W, of the γ p system in the range 194 < W < 296 GeV. This is the first determination of the W dependence of σγ p tot from a single experiment at high W. Parameterizing σγ p tot ∝ W2€, € = 0.111 ± 0.009 (stat.) ± 0.036 (syst.) was obtained, We appreciate the contributions to the construction and maintenance of the ZEUS detector of many people who are not listed as authors. The HERA machine group and the DESY computing staff are especially acknowledged for their success in providing excellent operation of the collider and the data-analysis environment. We thank the DESY directorate for their strong support and encouragement
Published: 2011

8. Measurement of heavy-quark jet photoproduction at HERA

Author: ZEUS Collaboration, Abramowicz, H., Abt, I., Adamczyk, L., Adamus, M., Aggarwal, R., Antonelli, S., Antonioli, P., Antonov, A., Arneodo, M., Aushev, V., Aushev, Y., Bachynska, O., Bamberger, A., Barakbaev, A. N., Barbagli, G., Bari, G., Barreiro, F., Bartosik, N., Bartsch, D., Basile, M., Behnke, O., Behr, J., Behrens, U., Bellagamba, L., Bertolin, A., Bhadra, S., Bindi, M., Blohm, C., Bokhonov, V., Bo��d, T., Bolilyi, O., Bondarenko, K., Boos, E. G., Borras, K., Boscherini, D., Bot, D., Brock, I., Brownson, E., Brugnera, R., Br��mmer, N., Bruni, A., Bruni, G., Brzozowska, B., Bussey, P. J., Bylsma, B., Caldwell, A., Capua, M., Carlin, R., Catterall, C. D., Chekanov, S., Chwastowski, J., Ciborowski, J., Ciesielski, R., Cifarelli, L., Cindolo, F., Contin, A., Cooper-Sarkar, A. M., Coppola, N., Corradi, M., Corriveau, F., Costa, M., D'Agostini, G., Corso, F. Dal, del Peso, J., Dementiev, R. K., De Pasquale, S., Derrick, M., Devenish, R. C. E., Dobur, D., Dolgoshein, B. A., Dolinska, G., Doyle, A. T., Drugakov, V., Durkin, L. S., Dusini, S., Eisenberg, Y., Ermolov, P. F., Eskreys, A., Fang, S., Fazio, S., Ferrando, J., Ferrero, M. I., Figiel, J., Forrest, M., Foster, B., Fourletov, S., Gach, G., Galas, A., Gallo, E., Garfagnini, A., Geiser, A., Gialas, I., Gladilin, L. K., Gladkov, D., Glasman, C., Gogota, O., Golubkov, Yu. A., G��ttlicher, P., Grabowska-Bo��d, I., Grebenyuk, J., Gregor, I., Grigorescu, G., Grzelak, G., Gueta, O., Gwenlan, C., Haas, T., Hain, W., Hamatsu, R., Hart, J. C., Hartmann, H., Hartner, G., Hilger, E., Hochman, D., Hori, R., Horton, K., H��ttmann, A., Ibrahim, Z. A., Iga, Y., Ingbir, R., Ishitsuka, M., Jakob, H. -P., Januschek, F., Jimenez, M., Jones, T. W., J��ngst, M., Kadenko, I., Kahle, B., Kamaluddin, B., Kananov, S., Kanno, T., Karshon, U., Karstens, F., Katkov, I. I., Kaur, M., Kaur, P., Keramidas, A., Khein, L. A., Kim, J. Y., Kisielewska, D., Kitamura, S., Klanner, R., Klein, U., Koffeman, E., Kooijman, P., Korol, Ie., Korzhavina, I. A., Kota��ski, A., K��tz, U., Kowalski, H., Kulinski, P., Kuprash, O., Kuze, M., Lee, A., Levchenko, B. B., Levy, A., Libov, V., Limentani, S., Ling, T. Y., Lisovyi, M., Lobodzinska, E., Lohmann, W., L��hr, B., Lohrmann, E., Long, K. R., Longhin, A., Lontkovskyi, D., Lukina, O. Yu., ��u��niak, P., Maeda, J., Magill, S., Makarenko, I., Malka, J., Mankel, R., Margotti, A., Marini, G., Martin, J. F., Mastroberardino, A., Mattingly, M. C. K., Melzer-Pellmann, I. -A., Mergelmeyer, S., Miglioranzi, S., Idris, F. Mohamad, Monaco, V., Montanari, A., Morris, J. D., Mujkic, K., Musgrave, B., Nagano, K., Namsoo, T., Nania, R., Nicholass, D., Nigro, A., Ning, Y., Nobe, T., Noor, U., Notz, D., Nowak, R. J., Nuncio-Quiroz, A. E., Oh, B. Y., Okazaki, N., Oliver, K., Olkiewicz, K., Onishchuk, Yu., Papageorgiu, K., Parenti, A., Paul, E., Pawlak, J. M., Pawlik, B., Pelfer, P. G., Pellegrino, A., Perlanski, W., Perrey, H., Piotrzkowski, K., Plucinski, P., Pokrovskiy, N. S., Polini, A., Proskuryakov, A. S., Przybycie��, M., Raval, A., Reeder, D. D., Reisert, B., Ren, Z., Repond, J., Ri, Y. D., Robertson, A., Roloff, P., Ron, E., Rubinsky, I., Ruspa, M., Sacchi, R., Salii, A., Samson, U., Sartorelli, G., Savin, A. A., Saxon, D. H., Schioppa, M., Schlenstedt, S., Schleper, P., Schmidke, W. B., Schneekloth, U., Sch��nberg, V., Sch��rner-Sadenius, T., Schwartz, J., Sciulli, F., Shcheglova, L. M., Shehzadi, R., Shimizu, S., Singh, I., Skillicorn, I. O., S��omi��ski, W., Smith, W. H., Sola, V., Solano, A., Son, D., Sosnovtsev, V., Spiridonov, A., Stadie, H., Stanco, L., Stern, A., Stewart, T. P., Stifutkin, A., Stopa, P., Suchkov, S., Susinno, G., Suszycki, L., Sztuk-Dambietz, J., Szuba, D., Szuba, J., Tapper, A. D., Tassi, E., Terr��n, J., Theedt, T., Tiecke, H., Tokushuku, K., Tomalak, O., Tomaszewska, J., Tsurugai, T., Turcato, M., Tymieniecka, T., Uribe-Estrada, C., V��zquez, M., Verbytskyi, A., Viazlo, O., Vlasov, N. N., Volynets, O., Walczak, R., Abdullah, W. A. T. Wan, Whitmore, J. J., Whyte, J., Wiggers, L., Wing, M., Wlasenko, M., Wolf, G., Wolfe, H., Wrona, K., Yag��es-Molina, A. G., Yamada, S., Yamazaki, Y., Yoshida, R., Youngman, C., ��arnecki, A. F., Zawiejski, L., Zenaiev, O., Zeuner, W., Zhautykov, B. O., Zhmak, N., Zhou, C., Zichichi, A., Zolko, M., Zotkin, D. S., Zulkapli, Z., Zeus (IHEF, IoP, FNWI), H. ABRAMOWICZ, I. ABT, L. ADAMCZYK, M. ADAMUS, R. AGGARWA, S. ANTONELLI, P. ANTONIOLI, A. ANTONOV, M. ARNEODO, V. AUSHEV, Y. AUSHEV, O. BACHYNSKA, A. BAMBERGER, A.N. BARAKBAEV, G. BARBAGLI, G. BARI, F. BARREIRO, N. BARTOSIK, D. BARTSCH, M. BASILE, O. BEHNKE, J. BEHR, U. BEHRENS, L. BELLAGAMBA, A. BERTOLIN, S. BHADRA, M. BINDI, C. BLOHM, V. BOKHONOV, T. BOLD, O. BOLILYI, K. BONDARENKO, E.G. BOOS, K. BORRAS, D. BOSCHERINI, D. BOT, I. BROCK, E. BROWNSON, R. BRUGNERA, N. BRÜMMER, A. BRUNI, G. BRUNI, B. BRZOZOWSKA, P.J. BUSSEY, B. BYLSMA, A. CALDWELL, M. CAPUA, R. CARLIN, C.D. CATTERALL, S. CHEKANOV, J. CHWASTOWSKI, J. CIBOROWSKI, R. CIESIELSKI, L. CIFARELLI, F. CINDOLO, A. CONTIN, A.M. COOPER-SARKAR, N. COPPOLA, M. CORRADI, F. CORRIVEAU, M. COSTA, G. D’AGOSTINI, F. DAL CORSO, J. DEL PESO, R.K. DEMENTIEV, S. DE PASQUALE, M. DERRICK, R.C.E. DEVENISH, D. DOBUR, B.A. DOLGOSHEIN, G. DOLINSKA, A.T. DOYLE, V. DRUGAKOV, L.S. DURKIN, S. DUSINI, Y. EISENBERG, P.F. ERMOLOV, A. ESKREYS, S. FANG, S. FAZIO, J. FERRANDO, M.I. FERRERO, J. FIGIEL, M. FORREST, B. FOSTER, S. FOURLETOV, G. GACH, A. GALAS, E. GALLO, A. GARFAGNINI, A. GEISER, I. GIALAS, L.K. GLADILIN, D. GLADKOV, C. GLASMAN, O. GOGOTA, YU.A. GOLUBKOV, P. GÖTTLICHER, I. GRABOWSKA-BOLD, J. GREBENYUK, I. GREGOR, G. GRIGORESCU, G. GRZELAK, O. GUETA, C. GWENLAN, T. HAAS, W. HAIN, R. HAMATSU, J.C. HART, H. HARTMANN, G. HARTNER, E. HILGER, D. HOCHMAN, R. HORI, K. HORTON, A. HÜTTMANN, Z.A. IBRAHIM, Y. IGA, R. INGBIR, M. ISHITSUKA, H.-P. JAKOB, F. JANUSCHEK, M. JIMENEZ, T.W. JONES, M. JÜNGST, I. KADENKO, B. KAHLE, B. KAMALUDDIN, S. KANANOV, T. KANNO, U. KARSHON, F. KARSTENS, I.I. KATKOV, M. KAUR, P. KAUR, A. KERAMIDAS, L.A. KHEIN, J.Y. KIM, D. KISIELEWSKA1, S. KITAMURA, R. KLANNER, U. KLEIN, E. KOFFEMAN, P. KOOIJMAN, I. KOROL, I.A. KORZHAVINA, A. KOTA´ NSKI, U. KÖTZ, H. KOWALSKI, P. KULINSKI, O. KUPRASH, M. KUZE, A. LEE, B.B. LEVCHENKO, A. LEVY, V. LIBOV, S. LIMENTANI, T.Y. LING, M. LISOVYI, E. LOBODZINSKA, W. LOHMANN, B. LÖHR, E. LOHRMANN, K.R. LONG, A. LONGHIN, D. LONTKOVSKYI, O.YU. LUKINA, P. LU?ZNIAK, J. MAEDA, S. MAGILL, I. MAKARENKO, J. MALKA, R. MANKEL, A. MARGOTTI, G. MARINI, J.F. MARTIN, A. MASTROBERARDINO, M.C.K. MATTINGLY, I.-A. MELZER-PELLMANN, S. MERGELMEYER, S. MIGLIORANZI, F. MOHAMAD IDRIS, V. MONACO, A. MONTANARI, J.D. MORRIS, K. MUJKIC, B. MUSGRAVE, K. NAGANO, T. NAMSOO, R. NANIA, D. NICHOLASS, A. NIGRO, Y. NING, T. NOBE, U. NOOR, D. NOTZ, R.J. NOWAK, A.E. NUNCIO-QUIROZ, B.Y. OH, N. OKAZAKI, K. OLIVER, K. OLKIEWICZ, YU. ONISHCHUK, K. PAPAGEORGIU, A. PARENTI, E. PAUL, J.M. PAWLAK, B. PAWLIK, P.G. PELFER, A. PELLEGRINO, W. PERLANSKI, H. PERREY, K. PIOTRZKOWSKI, P. PLUCINSKI, N.S. POKROVSKIY, A. POLINI, A.S. PROSKURYAKOV, M. PRZYBYCIE´N, A. RAVAL, D.D. REEDER, B. REISERT, Z. REN1, J. REPOND, Y.D. RI, A. ROBERTSON, P. ROLOFF, E. RON, I. RUBINSKY, M. RUSPA, R. SACCHI, A. SALII, U. SAMSON, G. SARTORELLI, A.A. SAVIN, D.H. SAXON, M. SCHIOPPA, S. SCHLENSTEDT, P. SCHLEPER, W.B. SCHMIDKE, U. SCHNEEKLOTH, V. SCHÖNBERG, T. SCHÖRNER-SADENIUS, J. SCHWARTZ, F. SCIULLI, L.M. SHCHEGLOVA, R. SHEHZADI, S. SHIMIZU, I. SINGH, I.O. SKILLICORN, W. SLOMI´ NSKI, W.H. SMITH, V. SOLA, A. SOLANO, D. SON, V. SOSNOVTSEV, A. SPIRIDONOV, H. STADIE, L. STANCO, A. STERN, T.P. STEWART, A. STIFUTKIN, P. STOPA, S. SUCHKOV, G. SUSINNO, L. SUSZYCKI, J. SZTUK-DAMBIETZ, D. SZUBA, J. SZUBA, A.D. TAPPER, E. TASSI, J. TERRÓN, T. THEEDT, H. TIECKE, K. TOKUSHUKU, O. TOMALAK, J. TOMASZEWSKA, T. TSURUGAI, M. TURCATO, T. TYMIENIECKA, C. URIBE-ESTRADA, M. VÁZQUEZ, A. VERBYTSKYI, O. VIAZLO, N.N. VLASOV, O. VOLYNETS, R.WALCZAK, W.A.T. WAN ABDULLAH, J.J.WHITMORE, J. WHYTE, L. WIGGERS, M. WING, M. WLASENKO, G. WOLF, H. WOLFE, K.WRONA, A.G. YAGÜES-MOLINA, S. YAMADA, Y. YAMAZAKI, R. YOSHIDA, C. YOUNGMAN, A.F. ZARNECKI, L. ZAWIEJSKI, O. ZENAIEV, W. ZEUNER, B.O. ZHAUTYKOV, N. ZHMAK, C. ZHOU, A. ZICHICHI, M. ZOLKO, D.S. ZOTKIN, Z. ZULKAPLI, and Precision Frontier
Subjects: Quark, Particle physics, Physics and Astronomy (miscellaneous), Astrophysics::High Energy Astrophysical Phenomena, HERA, FOS: Physical sciences, Heavy-quark jets, Jet (particle physics), 7. Clean energy, 01 natural sciences, CHARM, High Energy Physics - Experiment, Charm quark, OPEN BEAUTY PRODUCTION, High Energy Physics - Experiment (hep-ex), DESIGN, 0103 physical sciences, VERTEX DETECTOR, Invariant mass, ddc:530, High Energy Physics, Nuclear Experiment, 010306 general physics, ZEUS Collaboration, Engineering (miscellaneous), Quantum chromodynamics, Physics, ZEUS (particle detector), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, FLAVOR PRODUCTION, ZEUS BARREL CALORIMETER, CENTRAL TRACKING DETECTOR, Photoproduction, Pseudorapidity, PARTON DISTRIBUTIONS, DIJET CROSS-SECTIONS, High Energy Physics::Experiment, HADRON-COLLISIONS, ZEUS experiment
Abstract: Photoproduction of beauty and charm quarks in events with at least two jets has been measured with the ZEUS detector at HERA using an integrated luminosity of 133 $pb^{-1}$. The fractions of jets containing b and c quarks were extracted using the invariant mass of charged tracks associated with secondary vertices and the decay-length significance of these vertices. Differential cross sections as a function of jet transverse momentum, $p_{T}^{\text{jet}}$, and pseudorapidity, $\eta^{\text{jet}}$, were measured. The data are compared with previous measurements and are well described by next-to-leading-order QCD predictions., Comment: 35 pages, 9 figures, 3 tables
Published: 2011

9. Search for single-top production in ep collisions at HERA

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

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9 results on '"O. BOLILYI"'

1. SECURITY OPERATIONS CENTER AS A SERVICE BASED ON SIEM

2. Exclusive electroproduction of two pions at HERA

3. Measurement of the t dependence in exclusive photoproduction of $\Upsilon$(1S) mesons at HERA

4. Study of tau-pair production at HERA

5. Scaled momentum distributions for $ K_S^0 $ KS and $ \Lambda /\bar{\Lambda } $ in DIS at HERA

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

7. Measurement of the energy dependence of the total photon-proton cross section at HERA

8. Measurement of heavy-quark jet photoproduction at HERA

9. Search for single-top production in ep collisions at HERA

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