Wuppertal 2015 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 59: QCD: Vorwärtsjet, W+jet, Z+jet

T 59.5: Vortrag

Dienstag, 10. März 2015, 17:45–18:00, K.11.10 (K8)

Running of the charm quark mass — •Andrii Gizhko^1,2, Achim Geiser¹, and Sven-Olaf Moch^1,2 — ¹Deutsches Elektronen-Synchrotron , Hamburg — ²Hamburg University, Hamburg

The combined HERA data on charm production in deep inelastic scattering have recently been used to determine the charm quark running mass m_c(m_c) in the MS renormalisation scheme. The same data are used differentially as a function of the photon virtuality Q² to evaluate the charm quark running mass at different physical scales to one-loop order. The scale dependence of the mass is found to be consistent with QCD expectations, and a graphical representation of the charm mass running, similar to the representation of the beauty mass running from LEP data, is obtained for the first time.