Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
1999-08-24
Eur.Phys.J.C13:609-639,2000
Physics
High Energy Physics
High Energy Physics - Experiment
53 pages, 18 figures, 9 tables, submitted to Eur Phys J; adding numerical values for rad corrections; correcting plotting erro
Scientific paper
10.1007/s100520050721
The inclusive single and double differential cross-sections for neutral and charged current processes with four-momentum transfer squared Q^2 between 150 and 30,000 GeV2 and with Bjorken x between 0.0032 and 0.65 are measured in e^+ p collisions. The data were taken with the H1 detector at HERA between 1994 and 1997, and they correspond to an integrated luminosity of 35.6 pb^-1. The Q^2 evolution of the parton densities of the proton is tested, yielding no significant deviation from the prediction of perturbative QCD. The proton structure function F_2(x,Q^2) is determined. An extraction of the u and d quark distributions at high x is presented. At high Q^2 electroweak effects of the heavy bosons Z0 and W are observed and found to be consistent with Standard Model expectation.
Adloff Catherine
H1 Collaboration
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