Updated values of running quark and lepton masses

Abstract

Reliable values of quark and lepton masses are important for model building at a fundamental energy scale, such as the Fermi scale M-Z approximate to 91.2 GeV and the would-be GUT scale Lambda(GUT) similar to 2 x 10(16) GeV. Using the latest data given by the Particle Data Group, we update the running quark and charged-lepton masses at a number of interesting energy scales below and above M-Z. In particular, we take into account the possible new physics scale (mu similar to 1 TeV) to be explored by the CERN LHC and the typical seesaw scales (mu similar to 10(9) GeV and mu similar to 10(12) GeV) which might be relevant to the generation of neutrino masses. For illustration, the running masses of three light Majorana neutrinos are also calculated. Our up-to-date tables of running fermion masses are expected to be very useful for the study of flavor dynamics at various energy scales.