Combination and QCD analysis of charm production cross section measurements in deep-inelastic ep scattering at HERA
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⋅...
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| Hauptverfasser: | , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
20 February 2013
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| In: |
The European physical journal. C, Particles and fields
Year: 2013, Jahrgang: 73, Pages: 1-26 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-013-2311-3 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1140/epjc/s10052-013-2311-3
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| Verfasserangaben: | 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 |
MARC
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| 245 | 1 | 0 | |a Combination and QCD analysis of charm production cross section measurements in deep-inelastic ep scattering at HERA |c 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 |
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| 520 | |a 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. | ||
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