Jet quenching in the strongly-interacting quark-gluon plasma
C. Marquet, T. Renk
TL;DR
This paper introduces a hybrid model combining perturbative and AdS/CFT approaches to describe jet quenching in the strongly-interacting quark-gluon plasma, successfully predicting various observables.
Contribution
It presents a novel hybrid modeling framework that integrates perturbative QCD with strong-coupling AdS/CFT calculations for jet energy loss.
Findings
Model fits R_AA for central collisions
Predicts R_AA and I_AA across centralities
Supports strong coupling effects in quark-gluon plasma
Abstract
We propose a hybrid model for medium-induced parton energy loss, in which the hard scales in the process are treated perturbatively, while the soft scales which involve strong coupling dynamics are modeled by AdS/CFT calculations. After fitting a single parameter on R_AA for central Au+Au collisions, we are able to predict different observables like R_AA and I_AA as a function of centrality and reaction plane. We obtain a consistent picture of how jet quenching is modified if the quark-gluon plasma is strongly interacting, and we provide quantitative predictions.
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