Combination and QCD analysis of charm production cross section measurements in deep-inelastic ep scattering at HERA

• Titel: Combination and QCD analysis of charm production cross section measurements in deep-inelastic ep scattering at HERA
• Mitwirkende: Abramowicz, Halina [VerfasserIn]
• Mitwirkende: Bunyatyan, A. [VerfasserIn]
• Mitwirkende: Dodonov, V. [VerfasserIn]
• Mitwirkende: Hennekemper, Eva [VerfasserIn]
• Mitwirkende: Herbst, Michael Clemens [VerfasserIn]
• Mitwirkende: Huber, Florian [VerfasserIn]
• Mitwirkende: Jung, A. W. [VerfasserIn]
• Mitwirkende: Lendermann, Victor [VerfasserIn]
• Mitwirkende: Pirumov, Hayk [VerfasserIn]
• Mitwirkende: Povh, Bogdan [VerfasserIn]
• Mitwirkende: Sauter, Michel David [VerfasserIn]
• Mitwirkende: Schöning, André [VerfasserIn]
• Mitwirkende: Schultz-Coulon, Hans-Christian [VerfasserIn]
• Körperschaft: ZEUS Collaboration / H1 Calorimeter Group [VerfasserIn]
• Verf.angabe: The H1 and ZEUS Collaborations: H. Abramowicz, A. Bunyatyan, V. Dodonov, E. Hennekemper, M. Herbst, F. Huber, A.W. Jung, V. Lendermann, H. Pirumov, B. Povh, M. Sauter, A. Schöning, H.-C. Schultz-Coulon und weitere 471
• E-Jahr: 2013
• Jahr: 20 February 2013
• Umfang: 26 S.
• Fussnoten: Gesehen am 05.05.2021
• Titel Quelle: Enthalten in: The European physical journal / C
• Ort Quelle: Berlin : Springer, 1998
• Jahr Quelle: 2013
• Band/Heft Quelle: 73(2013), Artikel-ID 2311, Seite 1-26
• ISSN Quelle: 1434-6052
• DOI: doi:10.1140/epjc/s10052-013-2311-3
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1757138609

Abstract

Measurements of open charm production cross sections in deep-inelastic ep scattering at HERA from the H1 and ZEUS Collaborations are combined. Reduced cross sections σcc̄red for charm production are obtained in the kinematic range of photon virtuality 2.5≤Q2≤2000 GeV2 and Bjorken scaling variable 3⋅10−5≤x≤5⋅10−2. The combination method accounts for the correlations of the systematic uncertainties among the different data sets. The combined charm data together with the combined inclusive deep-inelastic scattering cross sections from HERA are used as input for a detailed NLO QCD analysis to study the influence of different heavy flavour schemes on the parton distribution functions. The optimal values of the charm mass as a parameter in these different schemes are obtained. The implications on the NLO predictions for W± and Z production cross sections at the LHC are investigated. Using the fixed flavour number scheme, the running mass of the charm quark is determined.