A precision measurement of the inclusive ep scattering cross section at HERA
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.
- Publication:
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European Physical Journal C
- Pub Date:
- December 2009
- DOI:
- 10.1140/epjc/s10052-009-1169-x
- arXiv:
- arXiv:0904.3513
- Bibcode:
- 2009EPJC...64..561A
- Keywords:
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- High Energy Physics - Experiment
- E-Print:
- Revised version, accepted by journal, 35 pages, 10 figures