$πΞ$ phase shifts and CP Violation in ${Ω\toπΞ}$ Decay

Abstract

In the study of CP violation signals in $Ø\toπΞ$ nonleptonic decays, the strong $J$=3/2 $P$ and $D$ phase shifts for the $πΞ$ final-state interactions are needed. These phases are calculated using an effective Lagrangian model, including $Ξ$, $Ξ^*$(1530), $ρ$ and the $σ$-term, in the intermediate states. The $σ$-term is calculated in terms of the scalar form factor of the baryon.