Abstract
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 GeV2≤Q 2≤150 GeV2, and Bjorken x, 2×10−4≤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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The H1 Collaboration., Aaron, F.D., Alexa, C. et al. A precision measurement of the inclusive ep scattering cross section at HERA. Eur. Phys. J. C 64, 561–587 (2009). https://doi.org/10.1140/epjc/s10052-009-1169-x
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DOI: https://doi.org/10.1140/epjc/s10052-009-1169-x