Measurement of high-Q 2 charged current deep inelastic scattering cross sections with a longitudinally polarised positron beam at HERA

H. Abramowicz, Iris Abt, L. Adamczyk, M. Adamus, Ritu Aggarwal, S. Antonelli, P. Antonioli, А. Антонов, M. Arneodo, V. Aushev

103 more authors

Y. Aushev, O. Bachynska, A. Bamberger, A.N. Barakbaev, G. Barbagli, Giacomo Bari, Fernando Barreiro, D. Bartsch, M. Basile, O. Behnke, J. K. Behr, U. Behrens, L. Bellagamba, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, T. Bołd, E. Boos, K. Borras, D. Boscherini, D. Bot, S. Boutle, Ian C. Brock, E. Brownson, R. Brugnera, N.C. Brümmer, A. Bruni, G. Bruni, B. Brzozowska, Peter John Bussey, Jonathan Mark Butterworth, Ben Bylsma, Allen Christopher Caldwell, M. Capua, R. Carlin, C. D. Catterall, Sergei V. Chekanov, J. 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, Malcolm Derrick, R.C.E. Devenish, D. Dobur, B. A. Dolgoshein, Ganna Dolinska, A. T. Doyle, V. Drugakov, L. S. Durkin, S. Dusini, Yael Eisenberg, P. Ermolov, A. Eskreys, S. Fang, Salvatore Fazio, J. Ferrando, M.I. Ferrero, J. Figiel, M. Forrest, Brian Foster, S. Fourletov, G. P. Gach, A. Galas, E. Gallo, A. Garfagnini, A. Geiser, Ioannis Gialas, L. K. Gladilin, D. Gladkov, Claudia Glasman, O. Gogota, Yu. A. Golubkov, P. Göttlicher, I. Grabowska-Bołd, J. Grebenyuk, I. M. Gregor, Grzegorz Grzelak, GIUSEPPE IACOBUCCI, M. Kaur, Prabhdeep Kaur, E. ̃Tassi, B. Pawlik, P. Stopa, L. Zawiejski, M. Przybycień, Matthew Wing, Aleksander Filip Zarnecki, M. Lisovyi, E. M. Lobodzinska

The European Physical Journal C, 2010

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DOI 10.1140/epjc/s10052-010-1498-9
Data confidence 85 high
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Abstract

Measurements of the cross sections for charged current deep inelastic scattering in e + p collisions with a longitudinally polarised positron beam are presented. The measurements are based on a data sample with an integrated luminosity of 132 pb−1 collected with the ZEUS detector at HERA at a centre-of-mass energy of 318 GeV. The total cross section is presented at positive and negative values of the longitudinal polarisation of the positron beams. The single-differential cross-sections dσ/dQ 2, dσ/dx and dσ/dy are presented for Q 2>200 GeV2. The reduced cross-section $\tilde{\sigma}$ is presented in the kinematic range 200<Q 2<60 000 GeV2 and 0.006<x<0.562. The measurements agree well with the predictions of the Standard Model. The results are used to determine a lower limit on the mass of a hypothetical right-handed W boson.