Jet structure in 2.76 TeV Pb Pb collisions at ALICE
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 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).
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