A Precision Measurement of the Inclusive ep Scattering Cross Section at HERA

Details A Precision Measurement of the Inclusive ep Scattering Cross Section at HERA A Precision Measurement of the Inclusive ep Scattering Cross Section at HERA

2009-04-22

arxiv.org/abs/0904.3513v2

Eur.Phys.J.C64:561-587,2009

Physics

High Energy Physics

High Energy Physics - Experiment

Revised version, accepted by journal, 35 pages, 10 figures

Scientific paper

10.1140/epjc/s10052-009-1169-x

A measurement of the inclusive deep-inelastic neutral current e+p scattering cross section is reported in the region of four-momentum transfer squared, 12<=Q^2<=150 GeV^2, and Bjorken x, 2x10^-4<=x<=0.1. The results are based on data collected by the H1 Collaboration at the ep collider HERA at positron and proton beam energies of E_e=27.6 GeV and E_p=920 GeV, respectively. The data are combined with previously published data, taken at E_p=820 GeV. The accuracy of the combined measurement is typically in the range of 1.3-2%. A QCD analysis at next-to-leading order is performed to determine the parton distributions in the proton based on H1 data.

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