Jet Medium interactions at Quark Matter 09

TL;DR

This paper reviews recent advances in understanding jet quenching phenomena in heavy-ion collisions, highlighting theoretical developments and experimental progress in using jets as probes of the quark-gluon plasma.

Contribution

It summarizes key theoretical improvements and experimental measurements that enhance the understanding of jet-medium interactions in high-energy nuclear physics.

Findings

Development of 3-D fluid dynamical jet modification models

Implementation of in-medium Monte-Carlo simulations

High-statistics data enabling model discrimination

Abstract

The suppression of the yield of high transverse momentum $p_{T}$ hadrons in heavy-ion collisions, referred to as "jet-quenching", has now developed into a comprehensive science. Jets are now used as probes of a variety of properties of the dense medium through which they propagate. Major theoretical improvements include jet modification in a 3-D fluid dynamical medium, the first set of in-medium Monte-Carlo implementations, an understanding of multi-hadron observables and energy flow within perturbative QCD, along with improvements in the AdS/CFT description of energy loss. On the experimental side, high statistics data are allowing for the first discriminatory test of various theoretical models and approximations while the new measurements of full jet reconstruction pose a challenge to theory.