πΛ phase shifts and CP Violation in Ξ→ πΛ Deca
Barros Jr, C. C.
Original · EN
The CP violation asymmetry parameters in Ξ→πΛ nonleptonic decays are presently being measured by the HyperCP experiment. In the study of these CP violation parameters, the strong S and P phase shifts for the πΛ final-state interactions are needed. In this work, these phases are calculated using an effective chiral Lagrangian model, that considers Σ, Σ*(1385), and the σ-term, in the intermediate states. The σ-term is calculated in terms of the scalar form factor of the baryon.
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