Jet Reconstruction and Jet Quenching in Heavy Ion Collisions at ATLAS
Martin Spousta (for the ATLAS Collaboration)
TL;DR
This paper reports the first evidence of strong jet quenching in heavy ion collisions at TeV energies, using measurements of dijet asymmetry and azimuthal correlations with the ATLAS detector.
Contribution
It introduces a measurement of jet quenching phenomena in Pb+Pb collisions at 2.76 TeV, with detailed analysis of jet reconstruction and background effects.
Findings
Significant dijet asymmetry observed
Strong azimuthal correlation maintained
Jet quenching effects confirmed at TeV energies
Abstract
We present a measurement of dijet asymmetry and dijet azimuthal correlations in Pb+Pb collisions at TeV using the ATLAS detector. This measurement provides the first evidence of a strong jet quenching in relativistic heavy ion collisions at TeV energies. The jet reconstruction procedure is discussed as well as studies which have been performed to check that the observed asymmetry is not produced by detector effects and underlying event backgrounds.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Particle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions