Jets in heavy ion collisions with ATLAS

TL;DR

This paper reviews recent ATLAS experimental results on jet suppression in heavy ion collisions, providing insights into jet quenching mechanisms and constraining theoretical models of parton energy loss in quark-gluon plasma.

Contribution

It presents the latest measurements of jet suppression, including various correlation studies, and establishes qualitative features of jet quenching as experimental facts.

Findings

Jet suppression observed in inclusive jet yields.

Path length dependence of jet suppression demonstrated.

Photon-jet and Z^0-jet correlations reveal energy loss patterns.

Abstract

The energy loss of high-p_T partons provides insight into the transport properties of the medium created in relativistic heavy ion collisions. Evidence for this energy loss was first experimentally established through observation of high-p_T hadron suppression at RHIC. More recently, measurements of fully reconstructed jets have been performed at the LHC. In this summary the latest experimental results from the ATLAS collaboration on jet suppression are presented. In particular the jet suppression in inclusive jet yields, path length dependence of the jet suppression, photon-jet and Z^0-jet correlations, heavy flavor suppression, and jet fragmentation are discussed. These results establish qualitative features of the jet quenching mechanism as experimental fact and provide constraints on models of jet energy loss.