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arXiv · 2103.10494

Temperature dependence of $\rho$ meson-nucleon coupling constant from the AdS/QCD soft-wall model

Shahin Mamedov·Narmin Nasibova
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Abstract

We investigate the dependence of the $\rho$ meson-nucleon coupling constant on the temperature of the medium using the soft-wall model of AdS/QCD. The finite temperature profile functions for the vector and fermion fields are applied to the model having a thermal dilaton field. The interaction Lagrangian in the bulk between these fields is written as in zero temperature case and includes minimal- and magnetic-type interactions. The temperature dependence of the $g_{\rho NN}(T)$ coupling constant and its terms are plotted. We observe that the coupling constant and its separate terms become zero at the medium temperature near the Hawking temperature of phase transition.

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Shahin Mamedov, Narmin Nasibova. 2021-03-18. Temperature dependence of $\rho$ meson-nucleon coupling constant from the AdS/QCD soft-wall model. https://doi.org/10.1103/physrevd.104.036010

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