ANALYSIS OF DELTA-S=1 NON-LEPTONIC WEAK DECAYS AND THE DELTA-I=1-2 RULE

Publication Date

1980

Journal or Book Title

PHYSICAL REVIEW D

Abstract

Current-algebra and quark-model methods are used to investigate hyperon and kaon transition amplitudes for various contributions to the weak nonleptonic Hamiltonian of the Weinberg-Salam model. Substantial enhancements are found for matrix elements of certain operators which are induced by quantum-chromodynamic radiative corrections and contain right-handed currents. These operators improve the agreement with experiment in most cases, although problems remain in P-wave hyperon amplitudes. In this approach, the ΔI=1/2 rule is understandable in both kaons and baryons under plausible assumptions.

Comments

Published version is located at http://prd.aps.org/abstract/PRD/v21/i1/p186_1

Pages

186-202

Volume

21

Issue

1

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