A remark concerning the standard approach to $CP$ violation in a system of $K^o$ mesons

Abstract

Within the standard approach to $CP$ violation in a system of $K^o$ mesons, the normalization factor in the expression for the transition probability $|K^o_1|^2$ contains the $CP$ violation phase. A normalization multiplier for the transition probability can obviously not contain a phase term. In this work two simple methods are proposed for resolving this issue.