Perturbative renormalization factors of four-quark operators for improved Wilson fermion action and Iwasaki gauge action

被引：0
|
作者：
Y. Taniguchi
机构：
[1] University of Tsukuba,Graduate School of Pure and Applied Sciences, and Center for Computational Physics
来源：
Journal of High Energy Physics | / 2012卷
关键词：
Lattice QCD; Renormalization Regularization and Renormalons; Lattice Gauge Field Theories; Lattice Quantum Field Theory;
D O I：
暂无
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摘要：
The renormalization factor and O(a) improvement coefficient of four-quark operators are calculated perturbatively for the improved Wilson fermion action with clover term and the Iwasaki gauge action. With an application to the K → ππ decay amplitude in mind, the calculation is restricted to the parity odd operator, for which the operators are multiplicatively renormalized without any mixing to operators that have different chiral structures.
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