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. 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. 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. Żarnecki; O. Zenaiev; Z. Zhang

doi:10.1016/j.physletb.2017.11.002

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arXiv · 1705.08863

Running of the Charm-Quark Mass from HERA Deep-Inelastic Scattering Data

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Abstract

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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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. 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. 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. Żarnecki, O. Zenaiev, Z. Zhang. 2017-05-24. Running of the Charm-Quark Mass from HERA Deep-Inelastic Scattering Data. https://doi.org/10.1016/j.physletb.2017.11.002

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