Pion-hyperon phase shifts and CP violation in nonleptonic Hyperon decays

Barros, C. C.
December 2004
AIP Conference Proceedings;2004, Vol. 739 Issue 1, p538
Academic Journal
The CP violation asymmetry parameters in [cap_xi] → 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, calculated using an effective chiral Lagrangian model that considers Σ, Σ*(1385), and the σ-term in the intermediate states are shown. The σ-term is calculated in terms of the scalar form factor of the baryon. The results for the P and D strong waves in the Ω → π[cap_xi] are also shown. © 2004 American Institute of Physics


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