SU(6) $[{\bf 70},1^-]$ baryon multiplet in the $1/N_c$ expansion
High Energy Physics - Phenomenology
2011-03-21 v1
Abstract
The masses of excited states of mixed orbital symmetry of nonstrange and strange baryons belonging to the lowest multiplet are calculated in the expansion to order with a new method which allows to considerably reduce the number of linearly independent operators entering the mass formula. This study represents an extension to SU(6) of our work on nonstrange baryons, the framework of which was SU(4). The conclusion regarding the role of the flavor operator, neglected in previous SU(6) studies, is reinforced. Namely, both the flavor and spin operators contribute dominantly to the flavor-spin breaking.
Keywords
Cite
@article{arxiv.1101.5304,
title = {SU(6) $[{\bf 70},1^-]$ baryon multiplet in the $1/N_c$ expansion},
author = {N. Matagne and Fl. Stancu},
journal= {arXiv preprint arXiv:1101.5304},
year = {2011}
}
Comments
26 pages, 11 tables, to be published in PRD