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Understanding the Nature of $\Lambda (1405)$ through Regge Physics

High Energy Physics - Phenomenology 2016-04-20 v2 Nuclear Theory

Abstract

It appears that there are two resonances with JP=1/2J^P= 1/2^- quantum numbers in the energy region near the Λ(1405)\Lambda(1405) hyperon. The nature of these states is a topic of current debate. To provide further insight we use Regge phenomenology to access how these two resonances fit the established hyperon spectrum. We find that only one of these resonances is compatible with a three-quark state.

Cite

@article{arxiv.1512.03136,
  title  = {Understanding the Nature of $\Lambda (1405)$ through Regge Physics},
  author = {Cesar Fernandez-Ramirez and Igor V. Danilkin and Vincent Mathieu and Adam P. Szczepaniak},
  journal= {arXiv preprint arXiv:1512.03136},
  year   = {2016}
}
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