High-$\pt$ processes measured with ALICE at the LHC

TL;DR

This paper reports on measurements of high transverse momentum particles and jets in lead-lead collisions at the LHC, providing insights into the quark-gluon plasma's properties through nuclear modification factors and jet analysis.

Contribution

It presents new experimental results on high-$ ext{p}_ ext{T}$ particle suppression and jet production in Pb--Pb collisions at 2.76 TeV, comparing them with theoretical models.

Findings

Significant suppression of high-$ ext{p}_ ext{T}$ particles observed.

Jet reconstruction results support energy loss in QGP.

Comparison with models enhances understanding of medium properties.

Abstract

The study of single-particle and jet production in heavy-ion collisions provides insights into the density of the medium and the energy-loss mechanisms. The observed suppression of high-$\pt$ particle production is generally attributed to energy loss of partons as they propagate through the hot and dense QCD medium - Quark-Gluon-Plasma (QGP). Such measurements allow the characterization of the QGP, the deconfined state of quarks and gluons, predicted by QCD. In these proceedings we present the analysis results of Pb--Pb collisions at $\sqrt{\sNN}=2.76$ TeV recorded by ALICE. The nuclear modification factors ($\RAA$) and the results from jet reconstruction in Pb--Pb are presented. Comparison with other measurements and with theory models is discussed.