One-loop renormalization factors and mixing coeffecients of bilinear quark operators for improved gluon and quark actions
arXiv:hep-lat/9809070 · doi:10.1016/S0920-5632(99)85242-6
Abstract
We calculate one-loop renormalization factors and mixing coefficients of bilinear quark operators for a class of gluon actions with six-link loops and O(a)-improved quark action. The calculation is carried out by evaluating on-shell Green's functions of quarks and gluons in the standard perturbation theory. We find a general trend that finite parts of one-loop coefficients are reduced approximately by a factor two for the renormalization-group improved gluon actions compared with the case of the standard plaquette gluon action.
LATTICE98(improvement), 3 pages