Measurement of neutral current e±p cross sections at high Bjorken x with the ZEUS detector MEASUREMENT of NEUTRAL CURRENT e±p CROSS ... H. ABRAMOWICZ et al.

H. Abramowicz, I. Abt, L. Adamczyk, M. Adamus, R. Aggarwal, S. Antonelli, O. Arslan, V. Aushev, Y. Aushev, O. Bachynska, A. N. Barakbaev, N. Bartosik, O. Behnke, J. Behr, U. Behrens, A. Bertolin, S. Bhadra, I. Bloch, V. Bokhonov, E. G. BoosK. Borras, I. Brock, R. Brugnera, A. Bruni, B. Brzozowska, P. J. Bussey, A. Caldwell, M. Capua, C. D. Catterall, J. Chwastowski, J. Ciborowski, R. Ciesielski, A. M. Cooper-Sarkar, M. Corradi, F. Corriveau, G. D'Agostini, R. K. Dementiev, R. C. E. Devenish, G. Dolinska, V. Drugakov, S. Dusini, J. Ferrando, J. Figiel, B. Foster, G. Gach, A. Garfagnini, A. Geiser, A. Gizhko, L. K. Gladilin, O. Gogota, Yu. A. Golubkov, J. Grebenyuk, I. Gregor, G. Grzelak, O. Gueta, M. Guzik, W. Hain, G. Hartner, Donald Hochman, R. Hori, Z. A. Ibrahim, Y. Iga, M. Ishitsuka, A. Iudin, F. Januschek, I. Kadenko, S. Kananov, T. Kanno, Uri Karshon, M. Kaur, P. Kaur, L. A. Khein, D. Kisielewska, R. Klanner, U. Klein, N. Kondrashova, O. Kononenko, Ie. Korol, I. A. Korzhavina, A. Kotanski, U. Koetz, N. Kovalchuk, H. Kowalski, O. Kuprash, M. Kuze, B. B. Levchenko, V. Libov, S. Limentani, M. Lisovyi, E. Lobodzinska, W. Lohmann, B. Loehr, E. Lohrmann, A. Longhin, D. Lontkovskyi, O. Yu. Lukina, J. Maeda, I. Makarenko, J. Malka, J. F. Martin, S. Mergelmeyer, F. Mohamad Idris, K. Mujkic, V. Myronenko, K. Nagano, A. Nigro, T. Nobe, D. Notz, R. J. Nowak, K. Olkiewicz, Yu. Onishchuk, E. Paul, W. Perlanski, H. Perrey, N. S. Pokrovskiy, A. S. Proskuryakov, M. Przybycien, A. Raval, P. Roloff, I. Rubinsky, M. Ruspa, V. Samojlov, D. H. Saxon, M. Schioppa, W. B. Schmidke, U. Schneekloth, T. Schoerner-Sadenius, J. Schwartz, L. M. Shcheglova

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12 Citations (Scopus)

Abstract

The neutral current e±p cross section has been measured up to values of Bjorken x≅1 with the ZEUS detector at HERA using an integrated luminosity of 187pb-1 of e-p and 142pb-1 of e+p collisions at s=318GeV. Differential cross sections in x and Q2, the exchanged boson virtuality, are presented for Q2≥725GeV2. An improved reconstruction method and greatly increased amount of data allows a finer binning in the high-x region of the neutral current cross section and leads to a measurement with much improved precision compared to a similar earlier analysis. The measurements are compared to Standard Model expectations based on a variety of recent parton distribution functions.

Original languageEnglish
Article number072007
JournalPhysical Review D
Volume89
Issue number7
DOIs
Publication statusPublished - 8 Apr 2014

Funding

Italian National Institute for Nuclear Physics (INFN); German Federal Ministry for Education and Research (BMBF) [05 H09PDF, 05h09GUF]; HIR [UM.C/625/1/HIR/149]; UMRG from Universiti Malaya [RU006-2013, RP012A-13AFR, RP012B-13AFR]; ERGS from the Ministry of Education, Malaysia [ER004-2012A]; National Science Center [DEC-2012/06/M/ST2/00428]; Science and Technology Facilities Council, United Kingdom; Deutsche Forschungsge-meinschaft (DFG) [SFB 676]; Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT); Natural Sciences and Engineering Research Council of Canada (NSERC); RF Presidential Grant [N 3920.2012.2]; Russian Ministry of Education and Science through its grant for Scientific Research on High Energy Physics; Israel Science Foundation; Max Planck Institute for Physics, Munich, Germany; Polish National Science Center [DEC-2011/01/B/ST2/03643, DEC-2011/03/B/ST2/00220]; Alexander von Humboldt Foundation

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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