Running of the charm-quark mass from HERA deep-inelastic scattering data

Gizhko, A. (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany) ; Geiser, A. (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany) ; Moch, S. (II. Institute for Theoretical Physics, Hamburg University, Hamburg, Germany) ; Abt, I. (Max-Planck-Institut für Physik, München, Germany) ; Behnke, O. (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany) ; Bertolin, A. (INFN Padova, Padova, Italy) ; Blümlein, J. (Deutsches Elektronen-Synchrotron DESY, Zeuthen, Germany) ; Britzger, D. (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany) ; Brugnera, R. (Dipartimento di Fisica e Astronomia dell' Università, INFN, Padova, Italy) ; Buniatyan, A. (School of Physics and Astronomy, University of Birmingham, Birmingham, United Kingdom) ; Bussey, P.J. (School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom) ; Carlin, R. (Dipartimento di Fisica e Astronomia dell' Università, INFN, Padova, Italy) ; Cooper-Sarkar, A.M. (Department of Physics, University of Oxford, Oxford, United Kingdom) ; Daum, K. (Fachbereich C, Universität Wuppertal, Wuppertal, Germany) ; Dusini, S. (INFN Padova, Padova, Italy) ; Elsen, E. (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany) ; Favart, L. (Inter-University Institute for High Energies ULB-VUB, Brussels and Universiteit Antwerpen, Antwerpen, Belgium) ; Feltesse, J. (Irfu/SPP, CE-Saclay, Gif-sur-Yvette, France) ; Foster, B. (Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany) ; Garfagnini, A. (Dipartimento di Fisica e Astronomia dell' Università, INFN, Padova, Italy) ; Garzelli, M. (II. Institute for Theoretical Physics, Hamburg University, Hamburg, Germany) ; Gayler, J. (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany) ; Haidt, D. (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany) ; Hladkỳ, J. (Institute of Physics, Academy of Sciences of the Czech Republic, Praha, Czech Republic) ; Jung, A.W. (Kirchhoff-Institut für Physik, Universität Heidelberg, Heidelberg, Germany) ; Kapichine, M. (Joint Institute for Nuclear Research, Dubna, Russia) ; Korzhavina, I.A. (Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia) ; Levchenko, B.B. (Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia) ; Lipka, K. (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany) ; Lisovyi, M. (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany) ; Longhin, A. (INFN Padova, Padova, Italy) ; Mikocki, S. (The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland) ; Naumann, Th. (Deutsches Elektronen-Synchrotron DESY, Zeuthen, Germany) ; Nowak, G. (The Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland) ; Paul, E. (Physikalisches Institut der Universität Bonn, Bonn, Germany) ; Plačakytė, R. (II. Institute for Theoretical Physics, Hamburg University, Hamburg, Germany) ; Rabbertz, K. (Karlsruher Institut für Technologie, Karlsruhe, Germany) ; Schmitt, S. (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany) ; Shcheglova, L.M. (Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Moscow, Russia) ; Si, Z. (Shandong University, Jinan, Shandong Province, PR China) ; Spiesberger, H. (PRISMA Cluster of Excellence, Institut fur Physik, Johannes Gutenberg-Universität, Mainz, Germany) (Centre for Theoretical and Mathematical Physics, Department of Physics, University of Cape Town, Rondebosch, 7700, South Africa) ; Stanco, L. (INFN Padova, Padova, Italy) ; Truöl, P. (Physik-Institut der Universität Zürich, Zürich, Switzerland) ; Tymieniecka, T. (National Centre for Nuclear Research, Warsaw, Poland) ; Verbytskyi, A. (Max-Planck-Institut für Physik, München, Germany) ; Wichmann, K. (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany) ; Wing, M. (Physics and Astronomy Department, University College London, London, United Kingdom) ; Żarnecki, A.F. (Faculty of Physics, University of Warsaw, Warsaw, Poland) ; Zenaiev, O. (Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany) ; Zhang, Z. (LAL, Université Paris-Sud, CNRS/IN2P3, Orsay, France)

07 November 2017

Abstract: 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.


Published in: Physics letters B (2017)
Published by: Elsevier
DOI: 10.1016/j.physletb.2017.11.002
License: CC-BY-3.0



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