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arxiv: 1705.08863 · v1 · pith:47ANQKBQnew · submitted 2017-05-24 · ✦ hep-ph

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.Bl\"umlein , D.Britzger
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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.Hladk\`y 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.Pla\v{c}akyt\.e K.Rabbertz S.Schmitt L.M.Shcheglova Z.Si H.Spiesberger L.Stanco P.Tru\"ol T.Tymieniecka A.Verbytskyi K.Wichmann M.Wing A.F.\.Zarnecki O.Zenaiev Z.Zhang
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classification ✦ hep-ph
keywords masscharm-quarkdatarunningdeep-inelasticheraorderscattering
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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 $m_c(m_c)$ in the MSbar 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.

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