$a_1$ meson-baryon coupling constants in the framework of soft-wall and hard-wall AdS/QCD models

Abstract

We calculate the $a_1$ meson-nucleon coupling constant in the framework of soft-wall and hard-wall AdS/QCD models. In the bulk of AdS space were written bulk interaction Lagrangians for a minimal gauge coupling, a magnetic gauge coupling and a triple coupling. To use AdS/CFT correspondence and these bulk interaction Lagrangians we calculate the $a_1$ axial-vector meson-nucleon coupling constant in the boundary of AdS space within both models. We observe that the numerical values for the $g_{a_{1}NN}$ coupling constant in the framework of both models are more close to the experimental value than results in other works. We also calculate the $g_{a_1\Delta \Delta }$ axial-vector meson-$\Delta$-baryon coupling constant in the framework of hard-wall AdS/QCD model.

arXiv comment16 pages. arXiv admin note: text overlap with arXiv:1408.5496 version published in IJMPA

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Cited by in corpus (6)

• $a_1$ meson-nucleon coupling constant at finite temperature from the soft-wall AdS/QCD model
• Charm meson couplings in hard-wall Holographic QCD
• Temperature dependence of $\rho$ meson-nucleon coupling constant from the AdS/QCD soft-wall model
• Tensor meson couplings in AdS/QCD
• Axial-vector form factor of nucleons at finite temperature from the AdS/QCD soft-wall model
• Electromagnetic transition form factors of nucleons from the hard-wall AdS/QCD model