TL;DR
This paper reviews how systematic comparisons of models with experimental data at RHIC and LHC reveal a coherent, perturbative QCD-based picture of jet quenching, clarifying the physics of jet-medium interactions.
Contribution
It provides a comprehensive overview of how multiple measurements constrain the jet quenching mechanism within a perturbative QCD framework.
Findings
Jet quenching can be explained by perturbative QCD without exotic assumptions.
Current LHC data support the established jet-medium interaction picture.
Key measurements partially constrain the physics of shower-medium interactions.
Abstract
High P_T measurements of hard hadrons or jets at RHIC and LHC appear contradictory and in some cases counter-intuitive, but upon closer investigation they represent a coherent picture of jet-medium interaction physics which can be established with systematic comparisons of models against a large body of data. This picture is consistent with a perturbative QCD mechanism and does not require exotic assumptions. This overview outlines how several key measurements each partially constrain shower-medium interaction physics and how from the sum of those the outlines of the mechanism of jet quenching can be deduced. Most current jet results from LHC can be naturally understood in this picture. A short summary of what can be established about the nature of parton-medium interaction with current data is given in the end.
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Taxonomy
TopicsFluid Dynamics and Turbulent Flows