Analysis of the vertices $ρNN$, $ρΣΣ$ and $ρΞΞ$ with light-cone QCD sum rules

Details Analysis of the vertices $ρNN$, $ρΣΣ$ and $ρΞΞ$ with light-cone QCD sum rules Analysis of the vertices $ρNN$, $ρΣΣ$ and $ρΞΞ$ with light-cone QCD sum rules

2007-01-22

arxiv.org/abs/hep-ph/0701176v3

Phys.Rev.D75:054020,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 6 figures, revised version, add more discussions(Correct writing errors)

Scientific paper

10.1103/PhysRevD.75.054020

In this article, we calculate the strong coupling constants of the $\rho NN$, $\rho\Sigma\Sigma$ and $\rho\Xi\Xi$ in the framework of the light-cone QCD sum rules approach. The strong coupling constants of the meson-baryon-baryon are the fundamental parameters in the one-boson exchange model which describes the baryon-baryon interactions successfully. The numerical values are in agreement with the existing calculations in part. The electric and magnetic $F/(F+D)$ ratios deviate from the prediction of the vector meson dominance theory, the SU(3) symmetry breaking effects are very large.

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