On Collective Properties of Dense QCD Matter

Igor Dremin,Martin Kirakosyan,Andrei Leonidov

doi:10.1155/2013/706521

Abstract

A short review of the two recently analyzed collective effects in dense non-Abelian matter, the photon and dilepton production in nonequilibrium glasma and polarization properties of turbulent Abelian and non-Abelian plasmas, is given.

Highlights

Working out a quantitative description of the properties of dense strongly interacting matter produced in ultrarelativistic heavy ion collisions presents one of the most fascinating problems in high energy physics
In the absence of realistic mechanisms leading to extremely fast isotropization needed for describing the experimental data within the framework of standard hydro [15], the recent discussion [16,17,18,19] focused on building a generalization of hydrodynamical approach on systems with anisotropic pressure that naturally arise in the glasmabased description of the physics of the early stages of heavy ion collisions [1, 20, 21]
In the present paper we have reviewed several results related to the important role played by collective effects in the physics of heavy ion collisions and, more broadly, dense non-Abelian matter

Summary

Introduction

Working out a quantitative description of the properties of dense strongly interacting matter produced in ultrarelativistic heavy ion collisions presents one of the most fascinating problems in high energy physics. In the absence of realistic mechanisms leading to extremely fast isotropization needed for describing the experimental data within the framework of standard hydro [15], the recent discussion [16,17,18,19] focused on building a generalization of hydrodynamical approach on systems with anisotropic pressure that naturally arise in the glasmabased description of the physics of the early stages of heavy ion collisions [1, 20, 21]. It was shown that plasma turbulence can serve as a natural source of the above-mentioned anomalous smallness of viscosity of strongly interacting matter created in high energy heavy ion collisions.

Thermalizing Glasma

Turbulent Plasma

Turbulent Polarization

Conclusions