Perturbative renormalization factors of four-quark operators for improved Wilson fermion action and Iwasaki gauge action
Perturbative renormalization factors of four-quark operators for improved Wilson fermion action and Iwasaki gauge action
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用于改进威尔逊费米子作用和岩崎规范作用的四夸克算子的扰动重正化因子
DOI：
10.1007/jhep04(2012)143
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发表时间：
2012
影响因子：
5.4
通讯作者：
Y. Taniguchi
中科院分区：
文献类型：
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作者：
Y. Taniguchi
用微扰方法计算了含三叶草项的改进的Wilson费米子作用量和Iwasaki规范作用量的四夸克算符的重整化因子和O（a）改进系数.考虑到K→ ππ衰变振幅的应用，计算仅限于宇称奇算符，其中算符被乘法重整化，而没有任何混合到具有不同手征结构的算符。
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.