Analysis of the vertices $\rho NN$, $\rho \Sigma \Sigma$ and $\rho \Xi \Xi$ with light-cone QCD sum rules

Abstract

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.

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

References in corpus (4)

• Meson-octet-baryon couplings using light cone QCD sum rules
• The nucleon-sigma coupling constant in QCD Sum Rules
• Scalar-Meson - Baryon Coupling Constants in QCD Sum Rules
• Analysis of the $\Sigma -n$ form factors with light-cone QCD sum rules

Cited by in corpus (5)

• Vector meson-baryon strong coupling contants in light cone QCD sum rules
• Investigation of hidden-charm double strange pentaquark candidate $P_{css}$ via its mass and strong decays
• Strong decay ${\Delta }^{++}\to p\pi$ with light-cone QCD sum rules
• Strong decays ${\Sigma }^{\ast }\to \Sigma \pi ,\Lambda \pi$ and related strong coupling constant
• Impact of QCD sum rules coupling constants on neutron stars structure