CP Violation in Fermion Pair Decays of Neutral Boson Particles

Abstract

We study CP violation in fermion pair decays of neutral boson particles with spin 0 or 1. We study a new asymmetry to measure CP violation in $\eta ,K_L\to {\mu }^{+}{\mu }^{-}$ decays and discuss the possibility of measuring it experimentally. For the spin-1 particles case, we study CP violation in the decays of $J/\psi$ to $SU(3)$ octet baryon pairs. We show that these decays can be used to put stringent constraints on the electric dipole moments of $\Lambda$, $\Sigma$ and $\Xi$.

Comments: 14p, OZ-93/22, UM-93/89, OITS 519