Skyrme model and nonleptonic hyperon decays - art. no. 097502

Citation
G. Duplancic et al., Skyrme model and nonleptonic hyperon decays - art. no. 097502, PHYS REV D, 6409(9), 2001, pp. 7502
Citations number
29
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6409
Issue
9
Year of publication
2001
Database
ISI
SICI code
0556-2821(20011101)6409:9<7502:SMANHD>2.0.ZU;2-Z
Abstract
This Brief Report is an attempt to explain both s- and p-wave nonleptonic h yperon decays by means of the QCD enhanced effective weak Hamiltonian suppl emented by the SU(3) Skyrme model used to estimate nonperturbative matrix e lements. The model has only one free parameter, namely, the Skyrme charge e , which is fixed through the experimental values of the octet-decuplet mass splitting Delta and the axial vector coupling constant g(A). Such a dynami cal approach produces nonleptonic hyperon decay amplitudes that agree with experimental data reasonably well.