Nuclear effects on jet substructure observables at the LHC
High Energy Physics - Phenomenology
2021-02-03 v1 Nuclear Theory
Abstract
Using a pQCD picture for jet evolution in a dense QCD medium, in which medium-induced parton branchings are factorized from vacuum-like emissions, we study two jet substructure observables: the and the Soft Drop multiplicity distributions. We compute the respective nuclear modification factors using a Monte-Carlo implementation of the parton showers. Our results are in qualitative agreement with LHC data for Pb+Pb collisions. We identify the physical mechanisms explaining our results: incoherent jet energy loss, semi-hard medium-induced emissions and the bias introduced by the steeply falling jet spectrum.
Cite
@article{arxiv.2001.09071,
title = {Nuclear effects on jet substructure observables at the LHC},
author = {Paul Caucal and Edmond Iancu and Gregory Soyez},
journal= {arXiv preprint arXiv:2001.09071},
year = {2021}
}
Comments
Presented at the XXVIIIth International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2019), Wuhan, China