Determination of the Improvement Coefficient cSW up to One-Loop Order with the Conventional Perturbation Theory
Abstract
We calculate the O(a) improvement coefficient cSW in the Sheikholeslami-Wohlert quark action for various improved gauge actions with six-link loops. We employ the conventional perturbation theory introducing the fictitious gluon mass to regularize the infrared divergence. Our results for some improved gauge actions are in agreement with those previously obtained with the Schr\"odinger functional method.
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