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Publication - Professor Brian Foster

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


    Gizhko, A, Geiser, A, Moch, S, Abt, I, Behnke, O, Bertolin, A, Blümlein, J, Britzger, D, Brugnera, R, Buniatyan, A, Bussey, P, Carlin, R, Cooper-Sarkar, A, Daum, K, Dusini, S, Elsen, E, Favart, L, Feltesse, J, Foster, B, Garfagnini, A, Garzelli, M, Gayler, J, Haidt, D, Hladkỳ, J, Jung, A, Kapichine, M, Korzhavina, I, Levchenko, B, Lipka, K, Lisovyi, M, Longhin, A, Mikocki, S, Naumann, T, Nowak, G, Plačakytė, R, Rabbertz, K, Schmitt, S, Shcheglova, L, Si, Z, Spiesberger, H & others 2017, ‘Running of the charm-quark mass from HERA deep-inelastic scattering data’. Physics Letters B, vol 775., pp. 233-238


    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.

    Full details in the University publications repository