Physics Letters B (Dec 2017)

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. Blümlein,
  • 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. Hladkỳ,
  • 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. Plačakytė,
  • K. Rabbertz,
  • S. Schmitt,
  • L.M. Shcheglova,
  • Z. Si,
  • H. Spiesberger,
  • L. Stanco,
  • P. Truöl,
  • T. Tymieniecka,
  • A. Verbytskyi,
  • K. Wichmann,
  • M. Wing,
  • A.F. Å»arnecki,
  • O. Zenaiev,
  • Z. Zhang

Journal volume & issue
Vol. 775
pp. 233 – 238

Abstract

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Combined HERA data on charm production in deep-inelastic scattering have previously been used to determine the charm-quark running mass mc(mc) in the MS‾ renormalisation scheme. Here, the same data are used as a function of the photon virtuality Q2 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.