Measurement of charged current deep inelastic scattering cross sections with a longitudinally polarised electron beam at HERA

Sergei V. Chekanov, Malcolm Derrick, S. Magill, Brian Musgrave, D. Nicholass, J. Repond, R. Yoshida, M.C.K. Mattingly, P. Antonioli, Giacomo Bari

90 more authors

L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, F. Cindolo, M. Corradi, GIUSEPPE IACOBUCCI, A. Margotti, R. Nania, Alessandro Polini, S. Antonelli, M. Basile, M. Bindi, L. Cifarelli, A. Contin, S. De Pasquale, G. Sartorelli, ANTONINO ZICHICHI, D. Bartsch, Ian C. Brock, H. Hartmann, E. Hilger, H.‐P. Jakob, M. Jüngst, A.-E. Nuncio-Quiroz, E. Paul, U. Samson, V. Schönberg, R. Shehzadi, M. Wlasenko, Nicholas H Brook, G. P. Heath, J. D. Morris, M. Kaur, Prabhdeep Kaur, I. Singh, M. Capua, Salvatore Fazio, Anna Mastroberardino, Marco Schioppa, G. F. Susinno, E. ̃Tassi, J. Y. Kim, Z. A. Ibrahim, F. Mohamad Idris, Burhanuddin Kamaluddin, Wan Ahmad Tajuddin Wan Abdullah, Y. Ning, Z. Ren, F. J. Sciulli, J. J. Chwastowski, A. Eskreys, J. Figiel, A. Galas, Krystyna Olkiewicz, B. Pawlik, P. Stopa, L. Zawiejski, L. Adamczyk, T. Bołd, I. Grabowska-Bołd, Danuta Kisielewska, J. Łukasik, M. Przybycień, L. Suszycki, Andrzej Kotański, W. Słomiński, O. Behnke, U. Behrens, C. Blohm, Anthony Bonato, K. Borras, D. Bot, R. Ciesielski, N. Coppola, S. Fang, J. Fourletova, A. Geiser, P. Göttlicher, J. Grebenyuk, I. M. Gregor, T. Haas, W. Hain, A. Hüttmann, F. Januschek, B. Kahle, I.I. Katkov, U. Klein, U. Kötz, H. Kowalski

2009

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DOI 10.1140/epjc/s10052-009-1015-1
Data confidence 70 medium
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Abstract

Measurements of the cross sections for charged current deep inelastic scattering in e − p collisions with longitudinally polarised electron beams are presented. The measurements are based on a data sample with an integrated luminosity of 175 pb−1 collected with the ZEUS detector at HERA at a centre-of-mass energy of 318 GeV. The total cross section is given for positively and negatively polarised electron beams. The differential cross-sections d σ/dQ 2, d σ/dx and d σ/dy are presented for Q 2>200 GeV2. The double-differential cross-section d 2 σ/dxdQ 2 is presented in the kinematic range 280<Q 2<30 000 GeV2 and 0.015<x<0.65. The measured cross sections are compared with the predictions of the Standard Model.