Speaker
Collaboration H1 and ZEUS
(DESY)
Description
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 $\overline{MS}$ 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 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 from data for the first time.
Authors
Collaboration H1 and ZEUS
(DESY)
Matthew Wing
(UCL)
Stefan Schmitt
(Deutsches Elektronen-Synchrotron (DE))
