LHC jet suppression of light and heavy flavor observables

TL;DR

This paper presents a comprehensive pQCD-based theoretical framework for jet suppression in heavy ion collisions at LHC, accurately describing light and heavy flavor observables without free parameters.

Contribution

It introduces a dynamical QCD medium model with magnetic mass effects and running coupling, providing a parameter-free approach that matches experimental suppression data.

Findings

Good agreement with experimental suppression patterns across particle species.

The formalism robustly explains jet quenching phenomena in QGP.

Supports pQCD as a valid description of jet physics at LHC.

Abstract

Jet suppression of light and heavy flavor observables is considered to be an excellent tool to study the properties of QCD matter created in ultra-relativistic heavy ion collisions. We calculate the suppression patterns of light hadrons, D mesons, non-photonic single electrons and non-prompt $J/\psi$ in Pb+Pb collisions at LHC. We use a theoretical formalism that takes into account finite size {\it dynamical} QCD medium with finite magnetic mass effects and running coupling, which is integrated into a numerical procedure that uses no free parameters in model testing. We obtain a good agreement with the experimental results across different experiments/particle species. Our results show that the developed theoretical formalism can robustly explain suppression data in ultra relativistic heavy ion collisions, which strongly suggests that pQCD in Quark-Gluon Plasma is able to provide a reasonable description of the underlying jet physics at LHC.