Resonances in weak nonleptonic Omega^- decay

Details Resonances in weak nonleptonic Omega^- decay Resonances in weak nonleptonic Omega^- decay

1999-05-19

arxiv.org/abs/hep-ph/9905398v1

Phys.Rev. D60 (1999) 054021

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 2 figures

Scientific paper

10.1103/PhysRevD.60.054021

We examine the importance of J^P = 1/2^+, 1/2^- resonances for weak nonleptonic Omega^- decays within the framework of chiral perturbation theory. The spin-1/2 resonances are included into an effective theory and tree contributions to the Omega^- decays are calculated. We find significant contributions to the decay amplitudes and satisfactory agreement with experiment. This confirms and extends previous results wherein such spin-1/2 resonances were included in nonleptonic and radiative-nonleptonic hyperon decays.

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