Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8199172 | Physics Letters B | 2006 | 13 Pages |
Abstract
The cross sections for charged and neutral current deep inelastic scattering in e+p collisions with a longitudinally polarised positron beam have been measured using the ZEUS detector at HERA. The results, based on data corresponding to an integrated luminosity of 23.8 pbâ1 at s=318GeV, are given for both e+p charged current and neutral current deep inelastic scattering for both positive and negative values of the longitudinal polarisation of the positron beam. Single differential cross sections are presented for the kinematic region Q2>200GeV2. The measured cross sections are compared to the predictions of the Standard Model. A fit to the data yields ÏCC(Pe=â1)=7.4±3.9(stat.)±1.2(syst.)pb, which is consistent within two standard deviations with the absence of right-handed charged currents in the Standard Model.
Related Topics
Physical Sciences and Engineering
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Authors
ZEUS Collaboration ZEUS Collaboration, S. Chekanov, M. Derrick, S. Magill, S. Miglioranzi, B. Musgrave, D. Nicholass, J. Repond, R. Yoshida, M.C.K. Mattingly, N. Pavel, A.G. Yagües Molina, S. Antonelli, P. Antonioli, G. Bari, M. Basile, L. Bellagamba,