Effects of Multi-Parton Interactions in Jet Quenching in Heavy-Ion Collisions
Abstract
We perform the first systematic study of the effects of multi-parton interactions (MPI's) in the context of jet quenching in heavy-ion collisions with the jet quenching model JEWEL. We use the simple MPI model of PYTHIA 6, on which JEWEL is based. We find negligible effects on all observables except jet-hadron and Z-hadron correlations, which show a moderate enhancement at large distances. More detailed analysis at parton level reveals that, in heavy-ion collisions, the MPI contribution to jets is suppressed by quenching effects.
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