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

Abstract

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.

19 pages, 4 figures

References in corpus (3)

• CP Violation in Hyperon Nonleptonic Decays within the Standard Model
• New Physics and CP Violation in Hyperon Nonleptonic Decays
• CP-violating asymmetry in $\Lambda \to p\pi$ in the Skyrme model

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• New Experiments with Antiprotons
• Tests of CP symmetry in entangled hyperon anti-hyperon pairs at BESIII
• A New Experiment to Study Hyperon CP Violation and the Charmonium System
• Proposed New Antiproton Experiments at Fermilab
• Prospects for Antiproton Experiments at Fermilab