Hyperon Nonleptonic Decays in Chiral Perturbation Theory Reexamined

Details Hyperon Nonleptonic Decays in Chiral Perturbation Theory Reexamined Hyperon Nonleptonic Decays in Chiral Perturbation Theory Reexamined

1999-08-30

arxiv.org/abs/hep-ph/9908498v2

Phys.Rev. D61 (2000) 114014

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, latex, 3 figures, uses axodraw.sty, minor additions, to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.61.114014

We recalculate the leading nonanalytic contributions to the amplitudes for hyperon nonleptonic decays in chiral perturbation theory. Our results partially disagree with those calculated before, and include new terms previously omitted in the P-wave amplitudes. Although these modifications are numerically significant, they do not change the well-known fact that good agreement with experiment cannot be simultaneously achieved using one-loop S- and P-wave amplitudes.

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