English

Are there three Xi(1950) states?

High Energy Physics - Phenomenology 2012-01-13 v2

Abstract

Different experiments on hadron spectroscopy have long suspected the existence of several cascade states in the 19002000MeV1900-2000 {\rm MeV} region. They are usually labeled under the common name of Ξ(1950)\Xi (1950). As we argue here, there are also theoretical reasons supporting the idea of several Ξ(1950)\Xi (1950) resonances. In particular, we propose the existence of three Ξ(1950)\Xi(1950) states: one of these states would be part of a spin-parity (1/2)(1/2)^{-} decuplet and the other two probably would belong to the (5/2)+(5/2)^{+} and (5/2)(5/2)^{-} octets. We also identify which decay channels are the more appropriate for the detection of each of the previous states.

Cite

@article{arxiv.1111.2218,
  title  = {Are there three Xi(1950) states?},
  author = {M. Pavon Valderrama and Ju-Jun Xie and J. Nieves},
  journal= {arXiv preprint arXiv:1111.2218},
  year   = {2012}
}

Comments

5 pages, 3 tables, final version. Published in Phys. Rev. D 85, 017502 (2012)

R2 v1 2026-06-21T19:33:23.590Z