Effects of Intense Magnetic Fields, High Temperature and Density on QCD-Related Phenomena

TL;DR

This paper investigates how intense magnetic fields, high temperature, and density influence QCD phenomena, including phase transitions, photon production, and gluon screening, providing new insights into the QCD phase diagram and experimental observations.

Contribution

It offers a comprehensive study of QCD effects under extreme conditions, including the QCD phase diagram, photon production mechanisms, and gluon screening properties.

Findings

QCD phase diagram and CEP location determined at high temperature and density

Proposed gluon fusion and splitting as new photon sources in magnetic fields

Analyzed gluon screening via polarization tensor and Debye mass

Abstract

The effects of high-temperature, dense systems, and strong magnetic fields on Quantum Chromodynamics related phenomena are studied in different perspectives: in the high-temperature and densities, the QCD-phase diagram from the Linear Sigma Model point of view is computed. In particular, the CEP location and transition lines for chiral restoration were found. In the intense magnetic fields and high-gluon density, the gluon fusion and gluon splitting channels are proposed as new photon production sources to better explain the experimental data in the so-called "photon puzzle". Finally, the thermal and magnetic screening properties for gluons encoded into the polarization tensor were addressed in terms of the Debye mass.