Fluctuations driven isotropization of the quark-gluon plasma in heavy ion collisions

TL;DR

This paper derives kinetic transport equations incorporating fluctuations to study how field fluctuations lead to isotropization of quark-gluon plasma in early heavy ion collision stages, aiding understanding of rapid thermalization.

Contribution

It introduces new kinetic equations that include fluctuation correlators, providing insights into the isotropization process of quark-gluon plasma.

Findings

Field fluctuations can drive isotropization at early stages.

The results help determine conditions for rapid plasma thermalization.

The equations can be used to compare with experimental time scales.

Abstract

Averaged over ensemble of initial conditions kinetic transport equations of weakly coupled systems of quarks and gluons are derived. These equations account for the correlators of fluctuations of particles and classical gluon fields. The isotropization of particle momenta by field fluctuations at the early prethermal stage of matter evolution in ultrarelativistic heavy ion collisions is discussed. Our results can be useful for understanding under what conditions isotropization of the quark-gluon plasma in ultrarelativistic heavy ion collisions can be reached within phenomenologically observed time scales.