Quark spin coupling in baryons - revisited
High Energy Physics - Phenomenology
2009-11-07 v2
Abstract
A direct connection can be made between mixing angles in negative parity baryons and the spin coupling of constituent quarks. The mixing angles do not depend on spectral data. These angles are recalculated for gluon exchange and pion exchange between quarks. For pion exchange the results of Glozman and Riska are corrected. The experimental data on mixing are very similar to those derived from gluon exchange but substantially different from the values obtained for pion exchange.
Keywords
Cite
@article{arxiv.hep-ph/0210126,
title = {Quark spin coupling in baryons - revisited},
author = {J. Chizma and G. Karl},
journal= {arXiv preprint arXiv:hep-ph/0210126},
year = {2009}
}
Comments
10 pages, RevTex; a sign error is corrected, spin-orbit results are included