Orbitally Excited Baryon Spectroscopy in the 1/Nc Expansion
High Energy Physics - Phenomenology
2017-08-23 v1 Nuclear Theory
Abstract
The discussion of the 70-plet of negative parity baryons illustrates the large Nc QCD approach to orbitally excited baryons. In the case of the l=1 baryons the existing data allows to make numerous predictions to first order in the SU(3) symmetry breaking. New relations between splittings are found that follow from the spin-flavor symmetry breaking. The Lambda(1405) is well described as a three-quark state and a spin-orbit partner of the Lambda(1520). Singlet states with higher orbital angular momentum are briefly discussed.
Keywords
Cite
@article{arxiv.hep-ph/0204044,
title = {Orbitally Excited Baryon Spectroscopy in the 1/Nc Expansion},
author = {Carlos L. Schat},
journal= {arXiv preprint arXiv:hep-ph/0204044},
year = {2017}
}
Comments
10 pages. Invited talk at The Phenomenology of Large Nc QCD, Tempe, Arizona, 9-11 Jan 2002