English

The 27-plet Baryons from Chiral Soliton Models

High Energy Physics - Phenomenology 2009-11-10 v2 High Energy Physics - Experiment Nuclear Experiment Nuclear Theory

Abstract

We use the perturbation method to calculate the masses and widths for 27-plet baryons with spin 3/2 from chiral soliton models. According to the masses and quantum numbers, we find all the candidates for non-exotic members of 27-plet. The calculation of the widths shows that these candidates manifest an approximate symmetry of the 27 representation of the SU(3) group, and the quantum numbers of Ξ(1950)\Xi(1950) seem to be I(JP)=1/2(3/2+)I(J^P)={1/2}({3/2}^+). Up to leading order of the strange quark mass, we find that the exotic members have widths much larger than those of the anti-decuplet members.

Keywords

Cite

@article{arxiv.hep-ph/0312041,
  title  = {The 27-plet Baryons from Chiral Soliton Models},
  author = {Bin Wu and Bo-Qiang Ma},
  journal= {arXiv preprint arXiv:hep-ph/0312041},
  year   = {2009}
}

Comments

4 pages in Revtex format, 1 figure, version to appear in PRD