Polarization of vacuum in the decays of neutral kaons

Abstract

It is considered the state of $K^0$ before the decay as that embedded into the vacuum of $+ \bar K^0 - \bar K^0$. Since the state of $K^0_S$ has the lifeitme $τ_S$, and the state of $K^0_L$ has the lifeitme $τ_L$, the vacuum of $+ \bar K^0 - \bar K^0$ is polarized. Due to the polarization of the vacuum, $2τ_S/τ_L$ of $K^0_S$ decay with the delay $\approx τ_L$. Thus CP-invariance holds true in the decays of neutral kaons.