Dijet induced collective modes in an anisotropic quark-gluon plasma

TL;DR

This paper investigates how the propagation of two relativistic jets (dijet) in an anisotropic quark-gluon plasma affects collective modes, showing that dijets significantly enhance instability growth and accelerate isotropization compared to single jets.

Contribution

It introduces a comparative analysis of collective modes induced by dijets versus single jets in anisotropic quark-gluon plasma, highlighting increased instability growth with dijets.

Findings

Dijet propagation significantly alters dispersion relations.

Growth rate of instability increases with dijets.

Dijet presence leads to faster isotropization.

Abstract

We discuss the collective modes due to the propagation of two oppositely moving relativistic jets (dijet) in an anisotropic quark-gluon plasma(AQGP) and compare the results with the case of single jet propagation. For the sake of simplicity, assuming a tsunami-like initial jet distribution, we observe that the dispersion relations for both the stable and unstable modes are altered significantly due to the passage of dijet in comparison with the case of single jet propagation. It has been further demonstrated that the growth rate of instability, due to introduction of dijet in the system, increases compared to the case of single jet case. As in the case of single jet propagation, the instability always grows when the jet velocity is perpendicular to the wave vector. We, thus, argue that the introduction of dijet in the AQGP, in general, leads to faster isotropization than single jet propagation.