Updated Estimate of Running Quark Masses

Abstract

Stimulated by recent development of the calculation methods of the running quark masses $m_q(\mu )$ and renewal of the input data, for the purpose of making a standard table of $m_q(\mu )$ for convenience of particle physicists, the values of $m_q(\mu )$ at various energy scales $\mu$ ($\mu =1$ GeV, $\mu =m_c$, $\mu =m_b$, $\mu =m_t$ and so on), especially at $\mu =m_Z$, are systematically evaluated by using the mass renormalization equations and by taking into consideration a matching condition at the quark threshold.

32 pages, RevTeX, 7 figures, epsf.sty. Minor corrections, added references, figures and results unchanged