Excited QCD 2016

An attempt of a determination of mass-differences $m_{K_L}-m_{K_S}$ and $m_{K_2}-m_{K_1}$ from CPLEAR data on semileptonic decay of $K^0$ and $\bar K^0$

11 Mar 2016, 16:30

30m

Costa da Caparica, Portugal

Friday Afternoon

Speaker

Stanislav Dubnicka (Institute of Physics)

Description

In an investigation of the decays and oscillations of neutral $K$-mesons two types of neutral particles have been introduced. The $K_1^0$, $K_2^0$ with well defined CP-parity and $K_S^0$, $K_L^0$ respecting the experimental fact of CP violation in weak decays of neutral $K$ -mesons, whereby only particles $K_S^0$, $K_L^0$ are explicitly presented in Rev.Part.Physics. Despite of this fact one can in principle determine the mass-differences of both types of particles, $m_{K_L}-m_{K_S}$ and $m_{K_2}-m_{K_1}$, from CPLEAR data on ASYMMETRY to be immune against CP transformations as it is obtained by semi-leptonic decays of neutral $K$ -mesons, and applying for their description either theoretical formula for ASYMMETRY neutral $K$-meson oscillations trough $K_S^0$ and $K_L^0$, or theoretical for ASYMMETRY neutral $K$ -meson oscillations trough $K_1^0$ and $K_2^0$.