English

Strange Skyrmions: status and observable predictions

High Energy Physics - Phenomenology 2009-10-30 v1

Abstract

The chiral soliton approach (CSA) provides predictions of the rich spectrum of baryonic states with different values of strangeness for any baryon number B. In the sector with B=1 the well known octet and decuplet of baryons are described within CSA, and some exotic states are predicted. In the B=2 sector there are many predictions, but only few of them - e.g. the existence of the virtual Λ\LambdaN-state - have been confirmed till now. Possible reasons for this are discussed. In particular, the B=2 SO(3) hedgehog interpreted usually as H-particle within CSA has dimensions considerably smaller than dimensions of the deuteron. Therefore, the estimates of its production cross section made previously in the assumption that H-particle and deuteron are approximately of the same size, may be too optimistic. Other branches of the CSA predictions corresponding to other local minima of the B=2 configurations of the SU(3) chiral fields: SU(2) torus and skyrmion molecule with strangeness content close to 0.5 are also considered.

Keywords

Cite

@article{arxiv.hep-ph/9712453,
  title  = {Strange Skyrmions: status and observable predictions},
  author = {Vladimir B. Kopeliovich},
  journal= {arXiv preprint arXiv:hep-ph/9712453},
  year   = {2009}
}

Comments

7 pages, no figures. Talk presented at the 6th International Conference on Hypernuclear and Strange Particles Physics (HYP97), BNL, Upton, N.Y., 13-18 October 1997 Submitted to Nucl. Phys. A