Strong decays $Σ^{*} \toΣπ,Λπ$ and related strong coupling constant

Details Strong decays $Σ^{*} \toΣπ,Λπ$ and related strong coupling constant Strong decays $Σ^{*} \toΣπ,Λπ$ and related strong coupling constant

2008-09-06

arxiv.org/abs/0809.1145v6

Eur.Phys.J.C61:299-309,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1140/epjc/s10052-009-0984-4

In this article, we calculate the strong coupling constant $g$ 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 $\Sigma^* \to \Lambda \pi,\Sigma \pi$. The numerical value of the strong coupling constant $g$ 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.

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