Probing CP Violation in Omega->Lambda K->p pi K Decay

Details Probing CP Violation in Omega->Lambda K->p pi K Decay Probing CP Violation in Omega->Lambda K->p pi K Decay

2004-06-24

arxiv.org/abs/hep-ph/0406274v1

Phys.Rev. D70 (2004) 076005

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 4 figures

Scientific paper

10.1103/PhysRevD.70.076005

The sum of the CP-violating asymmetries A_Omega and A_Lambda in the decay sequence Omega->Lambda K, Lambda->p pi is presently being measured by the E871 experiment. We evaluate contributions to A_Omega from the standard model and from possible new physics, and find them to be smaller than the corresponding contributions to A_Lambda, although not negligibly so. We also show that the partial-rate asymmetry in Omega->Lambda K is nonvanishing due to final-state interactions. Taking into account constraints from kaon data, we discuss how the upcoming result of E871 and future measurements may probe the various contributions to the observables.

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