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

Abstract

We investigate the dependence of the ρ 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 were applied in the model having thermal dilaton field. The interaction Lagrangian in the bulk between these fields was written as in zero temperature case and includes minimal and magnetic type interactions. Temperature dependence of the g ρN N (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.

Vector Meson Gravitational Form Factors and Generalized Parton Distributions at finite temperature within the soft-wall AdS/QCD Model

“…This model has opened new opportunities in the study of the hadron's phenomenological quantities such as coupling and decay constants, form factors, etc. at finite temperatures [22][23][24]. One of these opportunities is to investigate the GFFs and GPDs at finite temperature cases and plot the temperature dependencies of these quantities.…”