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

TL;DR

This paper studies how vector meson gravitational form factors and generalized parton distributions change with temperature using the soft-wall AdS/QCD model, revealing a decrease in gravitational radius and form factors as temperature approaches the critical point.

Contribution

It introduces a finite-temperature analysis of vector meson GFFs and GPDs within the soft-wall AdS/QCD framework, extending previous zero-temperature results.

Findings

GFFs decrease with increasing temperature.

The gravitational radius of the rho meson approaches zero near T_c.

GPDs are analyzed at zero and finite temperature.

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 [1]. 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 $T_c=0.2 {\rm\ GeV}$. GPDs at zero skewness are plotted and analyzed at zero and finite temperature cases.