Study of Jet Quenching in Relativistic Heavy-Ion Collisions

TL;DR

This paper investigates how the Quark-Gluon Plasma affects jet observables in heavy-ion collisions, using simulations with JEWEL coupled to different initial condition models, and finds that hydrodynamics improves data description.

Contribution

It introduces a coupled simulation framework with JEWEL and hydrodynamics to study jet quenching effects in heavy-ion collisions, highlighting the impact of realistic initial conditions.

Findings

Jet shape observables are largely unaffected by initial conditions and hydrodynamics.

Including hydrodynamics improves the agreement with experimental data for jet $v_2$.

Initial conditions do not significantly influence jet $v_2$ in the simulations.

Abstract

In this work, we investigate possible impacts that the behavior of the Quark-Gluon Plasma might have on Jet Observables. We choose JEWEL (Jet Evolution With Energy Loss) for this study. We have coupled JEWEL with $\rm T_RENTo$ and also with MC-KLN+vUSPhydro for simulations. The simulations were performed for PbPb collisions at $\sqrt{s_{NN}} = 2.76 \, {\rm TeV}$ in the $0-10\%$ centrality class. We have found that jet shape observables are mainly unchanged by the inclusion of realistic hydrodynamics and initial conditions in these settings. We also made calculations for the jet $v_2$. In this case, we have found that initial conditions do not affect this observable. In the case of realistic hydrodynamics, there is an improvement in the description of data.