Perturbative calculation of improvement coefficients to O(g2a) for bilinear quark operators in lattice QCD
Yusuke Taniguchi, Akira Ukawa
Abstract
We calculate the O(g2 a) mixing coefficients of bilinear quark operators in lattice QCD using a standard perturbative evaluation of on-shell Green's functions. Our results for the plaquette gluon action are in agreement with those previously obtained with the Schrödinger functional method. The coefficients are also calculated for a class of improved gluon actions having six-link terms.
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