Simple on-shell renormalization framework for the Cabibbo-Kobayashi-Maskawa matrix
Simple on-shell renormalization framework for the Cabibbo-Kobayashi-Maskawa matrix
We present an explicit on-shell framework to renormalize the Cabibbo-Kobayashi-Maskawa (CKM) quark mixing matrix at the one-loop level. It is based on a novel procedure to separate the external-leg mixing corrections into gauge-independent self-mass (sm) and gauge-dependent wave-function renormalization contributions, and to adjust nondiagonal mass counterterm matrices to cancel all …