Jet structure in 2.76 TeV Pb Pb collisions at ALICE

2012/10/29 by ALICE Collaboration
Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-ex

paper · pdf · doi:10.48550/arxiv.1210.7610

Quark Matter 2012

arxiv created 2012/10/29 · openalex publication_date 2012/10/29 · arxiv updated 2012/10/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

We present the analysis of the semi-inclusive distribution of reconstructed charged particle jets recoiling from a high pT hadron trigger in central Pb Pb collisions at √s_NN=2.76 TeV. We measure, subtract and unfold the large underlying event background in such collisions, utilizing a novel technique that does not impose fragmentation bias on the measured jet population. The Pb Pb measurements are compared to a pp PYTHIA reference distribution generated at the same √(s). Modification of jet structure due to quenching is explored by varying the cone radius R (0.2, 0.4) and the lower pT cutoff of charged particle constituents (0.15, 2.0 GeV/c).

Related

• Jet Results in pp and Pb-Pb Collisions at ALICE
• Charged Jets in Minimum Bias p-Pb Collisions at sqrt(s) = 5.02 TeV with ALICE
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• Measurement of inclusive jet spectra in pp, p-Pb, and Pb-Pb collisions with the ALICE detector
• Measurement of charged-particle jet properties in p--Pb collisions at √s_{\rm NN} = 5.02 TeV with ALICE