Effects of Multi-Parton Interactions in Jet Quenching in Heavy-Ion Collisions
Andrecia Ramnath, Korinna Zapp
TL;DR
This study investigates how multi-parton interactions influence jet quenching in heavy-ion collisions using the JEWEL model, revealing minimal effects except in specific correlation observables, with MPI contributions suppressed by quenching.
Contribution
First systematic analysis of MPI effects on jet quenching in heavy-ion collisions using JEWEL and PYTHIA 6 models.
Findings
Negligible effects on most observables.
Moderate enhancement in jet-hadron and Z-hadron correlations at large distances.
MPI contributions to jets are suppressed by quenching effects.
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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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Nuclear physics research studies · Urological Disorders and Treatments