Running Of The Charm-Quark Mass From Hera Deep-Inelastic Scattering Data

A. Gizhko,A. Geiser,S. Moch,I. Abt, O. Behnke, A. Bertolin, J. Bluemlein, D. Britzger, R. Brugnera, A. Buniatyan, P. J. Bussey,R. Carlin,A. M. Cooper-Sarkar,K. Daum,S. Dusini,E. Elsen, L. Favart, J. Feltesse,B. Foster, A. Garfagnini,M. Garzelli, J. Gayler,D. Haidt,J. Hladky, A. W. Jung,M. Kapichine,I. A. Korzhavina,B. B. Levchenko, K. Lipka, M. Lisovyi,A. Longhin,S. Mikocki,Th. Naumann,G. Nowak,E. Paul,R. Placakyte,K. Rabbertz,S. Schmitt,L. M. Shcheglova,Z. Si, H. Spiesberger,L. Stanco, P. Truol,T. Tymieniecka, A. Verbytskyi, K. Wichmann, M. Wing,A. F. Zarnecki, O. Zenaiev, Z. Zhang

PHYSICS LETTERS B（2017）

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摘要

Combined HERA data on charm production in deep-inelastic scattering have previously been used to determine the charm-quark running mass m(c)(mc) in the (MS) over bar renormalisation scheme. Here, the same data are used as a function of the photon virtuality Q(2) to evaluate the charm-quark running mass at different scales to one-loop order, in the context of a next-to-leading order QCD analysis. The scale dependence of the mass is found to be consistent with QCD expectations. (C) 2017 The Author(s). Published by Elsevier B.V.

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