Photon emission in QGP using AdS/QCD at finite chemical potential

TL;DR

This paper uses AdS/QCD models to compute photon emission rates and electrical conductivity of quark-gluon plasma at finite temperature and chemical potential, supporting the universality of holographic approaches in QCD.

Contribution

It introduces a method to calculate QGP properties at finite chemical potential using AdS/QCD in an AdS Reissner Nordstrom background, comparing hard and soft wall models.

Findings

Results align with experimental observations.

Consistent with other holographic models like D3/D7 and Sakai Sugimoto.

Supports the universality of AdS/CFT in QCD studies.

Abstract

We calculate the photon emission rate and the electrical conductivity of the QGP at finite temperature and finite chemical potential using AdS/QCD approximations in an AdS Reissner Nordstrom background. To do so, we supposed the medium properties to be encoded in a geometric background. The results obtained in the hard wall and soft wall model are consistent with the observed phenomenology and they also in agree with other holographic results, as the D3/D7 or the Sakai Sugimoto models, suggesting the universality of AdS/CFT conjecture as tool to explore QCD.