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Combination of Differential D^{*\pm} Cross-Section Measurements in Deep-Inelastic ep Scattering at HERA

Abstract : H1 and ZEUS have published single-differential cross sections for inclusive D^{*\pm}-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 > 5 GeV2, electron inelasticity 0.02 < y < 0.7 and the D^{*\pm} meson's transverse momentum pT (D^*) > 1.5 GeV and pseudorapidity |eta(D^*)| < 1.5. The combination procedure takes into account all correlations, yielding significantly reduced experimental uncertainties. Double-differential cross sections d2s /dQ2dy are combined with earlier D^{*\pm} data, extending the kinematic range down to Q2 > 1.5 GeV2. Perturbative next-to-leadingorder QCD predictions are compared to the results.
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http://hal.in2p3.fr/in2p3-01134452
Contributor : Sabine Starita <>
Submitted on : Monday, March 23, 2015 - 3:36:27 PM
Last modification on : Sunday, December 6, 2020 - 1:20:32 PM

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H. Abramowicz, V. Brisson, M. Jacquet, Zhiqing Zhang, F. Zomer, et al.. Combination of Differential D^{*\pm} Cross-Section Measurements in Deep-Inelastic ep Scattering at HERA. Journal of High Energy Physics, Springer, 2015, 149, ⟨10.1007/JHEP09(2015)149⟩. ⟨in2p3-01134452⟩

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