Baryons, IN_c
High Energy Physics - Phenomenology
2017-08-23 v1
Abstract
Excited baryons may be analyzed in the 1/N_c expansion as true resonances in scattering amplitudes. The key idea making this program possible is a generalization of methods originally applied to chiral soliton models in the 1980's. One finds model-independent relations among amplitudes that impose mass and width degeneracies among resonances of various quantum numbers. Phenomenological evidence demonstrates that patterns of resonant decay predicted by 1/N_c agree with data. The analysis can be extended to subleading orders in 1/N_c, where again agreement with data is evident.
Cite
@article{arxiv.hep-ph/0406236,
title = {Baryons, IN_c},
author = {Richard F. Lebed},
journal= {arXiv preprint arXiv:hep-ph/0406236},
year = {2017}
}
Comments
10 pages. Invited talk at "Continuous Advances in QCD 2004," Minneapolis, 13-16 May