English

Strong decays $\Sigma^{*} \to\Sigma\pi,\Lambda \pi$ and related strong coupling constant

High Energy Physics - Phenomenology 2009-07-22 v6

Abstract

In this article, we calculate the strong coupling constant gg among the decuplet baryons, the octet baryons and the pseudoscalar mesons in the heavy baryon chiral perturbation theory with the light-cone QCD sum rules, and study the strong decays ΣΛπ,Σπ\Sigma^* \to \Lambda \pi,\Sigma \pi. The numerical value of the strong coupling constant gg is consistent with our previous calculation, the central values lead to small SU(3) breaking effects, less than 6%; and no definitive conclusion can be drawn due to the large uncertainties.

Keywords

Cite

@article{arxiv.0809.1145,
  title  = {Strong decays $\Sigma^{*} \to\Sigma\pi,\Lambda \pi$ and related strong coupling constant},
  author = {Zhi-Gang Wang},
  journal= {arXiv preprint arXiv:0809.1145},
  year   = {2009}
}

Comments

20 pages, 10 figures, revised version, correct a type error

R2 v1 2026-06-21T11:17:32.896Z