Vector meson gravitational form factors and generalized parton distributions at finite temperature within the soft-wall AdS/QCD model

Abstract

We investigate the vector meson’s gravitational form factors (GFFs) and generalized parton distributions (GPDs) at finite temperatures within the soft-wall AdS/ QCD model. The plotted soft-wall GFFs graphs at zero temperature are close to the hard-wall results (Abidin and Carlson in Phys. Rev. D 77:095007, arXiv:0801.3839 [hep-th], 2008). The dependence on temperature of the GFFs and GPDs is studied using the thermal dilaton approach in the soft-wall model. Plots of thermal GFFs show that they decrease in temperature increase. Also, the gravitational radius of rho meson decreases in temperature growth and becomes zero around the critical temperature T_c=0.2 mathrm{ GeV}. GPDs at zero skewness are plotted and analyzed at zero and finite temperature cases.