| Thème(s) : |
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Physique/Physique des Hautes Energies - Expérience
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| Titre : |
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Inclusive Deep Inelastic Scattering at High Q2 with Longitudinally Polarised Lepton Beams at HERA |
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| Auteur : |
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F.D. Aaron, E. Barrelet1, J.C. Bizot2, V. Brisson2, B. Delcourt2, M. Jacquet2, C. Pascaud2, T.H. Tran2, Z. Zhang2, F. Zomer2, V. Boudry3, F. Moreau3, A. Specka3, M. Gouzevitch4, C. Diaconu5, D. Hoffmann5, E. Sauvan5, 6, C. Vallée5 |
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| Laboratoire : |
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| Résumé : |
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Inclusive e\pmp single and double differential cross sections for neutral and charged current deep inelastic scattering processes are measured with the H1 detector at HERA. The data were taken at a centre-of-mass energy of \surds = 319GeV with a total integrated luminosity of 333.7 pb-1 shared between two lepton beam charges and two longitudinal lepton polarisation modes. The differential cross sections are measured in the range of negative fourmomentum transfer squared, Q2, between 60 and 50 000GeV2, and Bjorken x between 0.0008 and 0.65. The measurements are combined with earlier published unpolarised H1 data to improve statistical precision and used to determine the structure function xF_3^gammaZ. A measurement of the neutral current parity violating structure function F_2^gammaZ is presented for the first time. The polarisation dependence of the charged current total cross section is also measured. The new measurements are well described by a next-to-leading order QCD fit based on all published H1 inclusive cross section data which are used to extract the parton distribution functions of the proton. |
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| Collaboration/Projet : |
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H1 |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication ou d'écriture : |
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2012 |
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| Nom du périodique : |
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| Journal of High Energy Physics |
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Institute of Physics (IOP) |
| ISSN |
1126-6708 (eISSN : 1029-8479) |
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| Volume : |
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09 |
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| Page/Article : |
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061 |
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| Identifiant local : |
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LAL 12-238 |
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| Commentaire : |
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See paper for full list of authors - 123 pages, 29 figures, 52 tables submitted to JHEP |
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