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Combination and QCD Analysis of Charm Production Cross Section Measurements in Deep-Inelastic ep Scattering at HERAстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 29 ноября 2013 г.
- Авторы: Dementiev R.K., Ermolov P.F., Gladilin L.K., Golubkov Yu A., Katkov I.I., Khein L.A., Korzhavina I.A., Lukina O.Yu, Levchenko B.B., Proskuryakov A.S., Shcheglova L.M., Zotkin D.S., Collaboration H1, ZEUS Collaboration
- Журнал: European Physical Journal C
- Том: 73
- Год издания: 2013
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- Первая страница: 2311
- Последняя страница: 2358
- DOI: 10.1140/epjc/s10052-013-2311-3
- Аннотация: 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 sigma_red^{c\bar{c}} for charm production are obtained in the kinematic range of photon virtuality 2.5<Q2<2000 GeV2 and Bjorken scaling variable 0.00003<x<0.05. 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^{\pm} 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. 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 for charm production are obtained in the kinematic range of photon virtuality 2.5≤Q (2)≤2000 GeV(2) 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.
- Добавил в систему: Лукина Ольга Юрьевна