Centre of Excellence in Quark Matter
Factorization of jet functions in heavy ion collisions
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Europe/Helsinki
Description
We discuss factorization of jet cross sections in heavy-ion collisions based on fixed-order calculations. First, using Glauber modelling of heavy nuclei, a factorized formula for jet cross sections is derived, which involves defining jet functions in QCD medium. Then, we present our result of the jet function for producing a heavy quark-antiquark pair at leading order in a static medium. The jet function is found to depend on the virtuality of the hard parton that iniciates the jet, showing that the presence of QCD matter allows the production of Q\bar{Q} at virtualities where it is kinematically forbidden for vacuum jets.