4.7 Article

A precision measurement of the inclusive ep scattering cross section at HERA

Journal

EUROPEAN PHYSICAL JOURNAL C
Volume 64, Issue 4, Pages 561-587

Publisher

SPRINGER
DOI: 10.1140/epjc/s10052-009-1169-x

Keywords

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Funding

  1. Bundesministerium fur Bildung und Forschung
  2. FRG [05 H1 1GUA/1, 05 H1 1PAA/1, 05 H1 1PAB/9, 05 H1 1PEA/6, 05 H1 1VHA/7, 05 H1 1VHB/5]
  3. UK Science and Technology Facilities Council
  4. UK Particle Physics and Astronomy Research Council
  5. FNRS-FWO-Vlaanderen
  6. IISN-IIKW
  7. IWT
  8. Interuniversity Attraction Poles
  9. Belgian Science Policy
  10. Polish Ministry of Science and Higher Education [PBS/DESY/70/2006]
  11. Deutsche Forschungsgemeinschaft
  12. VEGA SR [2/7062/27]
  13. Swedish Natural Science Research Council
  14. Ministry of Education of the Czech Republic [LC527, INGO-1P05LA259, MSM0021620859]
  15. Swiss National Science Foundation
  16. CONACYT, Mexico [48778-F]
  17. Russian Foundation for Basic Research (RFBR) [1329.2008.2]
  18. European Social Fund (75%)
  19. National Resources (25%)-(EPEAEK II)-PYTHAGORAS II
  20. Science and Technology Facilities Council [PP/E000444/1, PP/E006442/1] Funding Source: researchfish
  21. STFC [PP/E006442/1] Funding Source: UKRI

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A measurement of the inclusive deep inelastic neutral current e(+) p scattering cross section is reported in the region of four-momentum transfer squared, 12GeV(2) <= Q(2) <= 150 GeV2, and Bjorken x, 2 x 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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