EVIDENCE FOR SU(3) BREAKING IN CABIBBO-TYPE FITS OF SEMI-LEPTONIC HYPERON DECAY

Authors

JF Donoghue, University of Massachusetts AmherstFollow
BR Holstein, University of Massachusetts - AmherstFollow

Publication Date

1982

Journal or Book Title

PHYSICAL REVIEW D

Abstract

We analyze recent precision experiments involving semileptonic hyperon decay and demonstrate that there exists definite evidence for SU(3) breaking. The type of breaking observed is a difference in the D/(F+D) ratios in the ΔS=0 and ΔS=1 sectors, which is at variance with the simplest quark-model expectations. We comment on the relevance of symmetry breaking to the determination of weak mixing angles.

Comments

Published version is located at http://prd.aps.org/abstract/PRD/v25/i7/p2015_1

Pages

2015-2018

Volume

25

Issue

7

Recommended Citation

Donoghue, JF and Holstein, BR, "EVIDENCE FOR SU(3) BREAKING IN CABIBBO-TYPE FITS OF SEMI-LEPTONIC HYPERON DECAY" (1982). PHYSICAL REVIEW D. 230.
Retrieved from https://scholarworks.umass.edu/physics_faculty_pubs/230