Hard gluon evolution in warming medium

TL;DR

This paper models the energy loss and thermalization of hard gluons in a medium with increasing temperature, providing insights into the early stages of quark-gluon plasma evolution in heavy ion collisions.

Contribution

It introduces a probabilistic approach to describe gluon energy distribution in a warming medium, advancing understanding of thermalization in heavy ion collisions.

Findings

Estimated the initial time for the third stage of the bottom-up thermalization scenario.

Analyzed entropy density and temperature evolution as the system approaches thermal equilibrium.

Provided a framework for modeling gluon behavior in a dynamically heating plasma.

Abstract

We describe the energy distribution of hard gluons travelling through a dense quark-gluon plasma whose temperature increases linearly with time, within a probabilistic perturbative approach. The results were applied to the thermalization problem in heavy ion collisions, in the third stage of the bottom-up picture, to estimate the initial time for the third stage of the bottom-up scenario. We then look at the entropy density and average temperature of the soft thermal bath, as the system approaches (local) thermal equilibrium.