DECAYS OF L=1 BARYONS - QUARK-MODEL VERSUS LARGE N-C

Citation
Cd. Carone et al., DECAYS OF L=1 BARYONS - QUARK-MODEL VERSUS LARGE N-C, Physical review. D. Particles and fields, 50(9), 1994, pp. 5793-5807
Citations number
25
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
50
Issue
9
Year of publication
1994
Pages
5793 - 5807
Database
ISI
SICI code
0556-2821(1994)50:9<5793:DOLB-Q>2.0.ZU;2-X
Abstract
We study hadronic two-body decays of the orbitally excited, SU(6) 70-p let baryons in order to test the hypothesis that the successes of the nonrelativistic quark model have a natural explanation in the large-N- c limit of QCD. By working in a Hartree approximation, we isolate a sp ecific set of operators that contribute to the observed s- and d-wave decays in leading order in 1/N-c. We fit our results to the current ex perimental decay data, and make predictions for a number of allowed bu t unobserved modes. Our tentative conclusion is that there is more to the nonrelativistic quark model of baryons than large N-c.