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Analysis of the vertices $\rho NN$, $\rho\Sigma\Sigma$ and $\rho\Xi\Xi$ with light-cone QCD sum rules
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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.
Forward citations
Cited by 2 Pith papers
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Impact of QCD sum rules coupling constants on neutron stars structure
Using QCD sum rule couplings in a relativistic mean-field model, one of four parameter sets yields a 2.07 solar mass neutron star with hyperons, claimed to resolve the hyperon puzzle.
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