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Combination of differential D∗±^{∗\pm} cross-section measurements in deep-inelastic ep scattering at HERA

Collaborations
Mar 20, 2015
37 pages
Published in:
  • JHEP 09 (2015) 149
  • Published: Sep 22, 2015
e-Print:
DOI:
Report number:
  • DESY-15-037
Experiments:
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Abstract: (Springer)
H1 and ZEUS have published single-differential cross sections for inclusive D∗±^{∗±}-meson production in deep-inelastic ep scattering at HERA from their respective final data sets. These cross sections are combined in the common visible phase-space region of photon virtuality Q2^{2} > 5 GeV2^{2}, electron inelasticity 0.02 < y < 0.7 and the D∗±^{∗±} meson’s transverse momentum pT_{T}(D∗^{∗}) > 1.5 GeV and pseudorapidity |η(D∗^{∗})| < 1.5. The combination procedure takes into account all correlations, yielding significantly reduced experimental uncertainties. Double-differential cross sections d2^{2} σ/dQ2^{2}dy are combined with earlier D∗±^{∗±} data, extending the kinematic range down to Q2^{2} > 1.5 GeV2^{2}. Perturbative next-to-leading-order QCD predictions are compared to the results.
Note:
  • 37 pages, 14 figures, 9 tables, published: JHEP 09(2015)149
  • Lepton-Nucleon Scattering
  • QCD
  • Heavy quark production
  • Charm physics
  • electron p: deep inelastic scattering
  • DESY HERA Stor
  • D*(2010): production
  • charm: production
  • scattering
  • quantum chromodynamics
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