The Gauge Dependence of Imaginary Part of physical amplitude $W^{+}\to u_i{\bar{d}}_j$ in Quark Mixing Matrix Renormalization

Yong Zhou, Cai-dian Lü

We investigate the current renormalization prescriptions of quark mixing matrix and found that there is gauge dependence in the imaginary part of physical amplitude $W^{+}\to u_i \…