Jet-medium interaction and the Gubser flow

TL;DR

This paper investigates how expansion and viscosity influence the medium's hydrodynamical response to high-energy jets in heavy-ion collisions, using the Gubser flow solution to analyze modifications to jet-induced structures.

Contribution

It introduces a semi-analytical approach employing Gubser flow to study jet-medium interactions, providing detailed mode-by-mode analysis of medium response modifications.

Findings

Viscous effects alter Mach cone structures

Expansion influences the diffusive wake

Mode-by-mode analysis offers detailed insights

Abstract

We study the effects of expansion and viscous corrections on the hydrodynamical medium response to a high energy jet parton. More specifically, using a semi-analytical Gubser solution to relativistic fluid dynamics, modifications to the formed Mach cone, diffusive wake, and the momentum flow of the medium response along and perpendicular to the jet particle, are analyzed mode-by-mode. This should provide intuition and guidance for analyses of the experimentally measured jet sub-structure in heavy-ion collisions.