English

Jet structure in 2.76 TeV Pb Pb collisions at ALICE

Nuclear Experiment 2012-10-30 v1

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 sNN=2.76\sqrt{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\sqrt{s}. Modification of jet structure due to quenching is explored by varying the cone radius RR (0.2, 0.4) and the lower pT cutoff of charged particle constituents (0.15, 2.0 GeV/cc).

Keywords

Cite

@article{arxiv.1210.7610,
  title  = {Jet structure in 2.76 TeV Pb Pb collisions at ALICE},
  author = {ALICE Collaboration},
  journal= {arXiv preprint arXiv:1210.7610},
  year   = {2012}
}

Comments

Quark Matter 2012