Deuteron gravitational form factors, generalized parton distributions, and charge density in the framework of the soft-wall AdS/QCD model

TL;DR

This paper investigates the deuteron’s gravitational form factors and generalized parton distributions using the soft-wall AdS/QCD model, analyzing their temperature dependence and charge density distribution.

Contribution

It introduces a thermalized soft-wall AdS/QCD model to study deuteron GFFs and GPDs at finite temperature, providing new insights into their temperature behavior.

Findings

GPDs and charge density peaks decrease with temperature.

The gravitational root mean squared radius aligns with experimental mass radius.

Radius shows low sensitivity to temperature variations.

Abstract

We study the deuteron gravitational form factors (GFFs) and generalized parton distributions (GPDs) within the soft-wall AdS/QCD model, where deuteron is described by the bulk vector field with twist $\tau=6$. For the finite-temperature studies, we apply the soft-wall model, which is thermalized by introducing a thermal dilaton field. GPDs and charge density are considered in impact parameter (IP) space and at zero and finite temperatures. We plot the temperature dependence of these quantities in IP space and observe a decreasing of their peaks on temperature increasing. The gravitational root means squared radius obtained here is close to the range given by experimental data for the mass radius and has low sensitivity to the temperature.