Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-04-09
Physics
High Energy Physics
High Energy Physics - Phenomenology
28 pages, 11 figures; a talk presented at the 24 Int. Workshop on High-Energy Physics and Field Theory, Protvino, 27--29 June
Scientific paper
This is a pedagogical review of some selected topics of CP and T violation in the decays of K mesons. Diagonalization of the quark mass matrix and the emergence of the complex phase in both the standard and the left--right symmetric models is considered in great detail. Prominence is given to a correct definition of the CP-violating quantities: $\epsilon, \epsilon'$ {\it etc.} (with due regard for the Wu--Yang phase convention) and to formulation of the time-reversal invariance criterion in the elementary particle physics. A particular attention has been concentrated on theoretical evaluation of the parameters $\epsilon$ and $\epsilon'$ and the CP- and T-violating asymmetries in the decays $K \to \mu\nu\gamma$ and $K \to 3\pi$.
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