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Inclusive deep inelastic scattering at high Q2 with longitudinally polarised lepton beams at HERA

ABSTRACT Inclusive e ± p 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 s√=319s=319 \sqrt {s} = {319} GeV with a total integrated luminosity...

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Main Authors: Aaron, Francisc Dionisie (Author) , Hennekemper, Eva (Author) , Krüger, Katja (Author) , Lendermann, Victor (Author) , Pirumov, Hayk (Author) , Sauter, Michel David (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author)
Corporate Author: H1 Collaboration (Author)
Format: Article (Journal)
Language:English
Published: September 17, 2012
In: Journal of high energy physics
Year: 2012, Issue: 9, Pages: 1-125
ISSN:1029-8479
DOI:10.1007/JHEP09(2012)061
Online Access:Verlag, Volltext: http://dx.doi.org/10.1007/JHEP09(2012)061
Verlag, Volltext: https://doi.org/10.1007/JHEP09(2012)061
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Author Notes:H1 Collaboration, F.D. Aaron, E. Hennekemper, K. Krüger, V. Lendermann, H. Pirumov, M. Sauter, H.-C. Schultz-Coulon, A. Schöning [und weitere]
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Summary:ABSTRACT Inclusive e ± p 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 s√=319s=319 \sqrt {s} = {319} GeV 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 four-momentum transfer squared, Q 2, between 60 and 50 000 GeV2, 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 xFγZ3xF3γZ xF_{3}^{{\gamma Z}} . Ameasurementoftheneutralcurrentparityviolating structure function FγZ2F2γZ F_{2}^{{\gamma Z}} 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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Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP09(2012)061

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