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arxiv: 2002.07124 · v1 · pith:OAJGVZLAnew · submitted 2020-02-17 · ⚛️ nucl-th · hep-ph· nucl-ex

Jet quenching in a multi-stage Monte Carlo approach

A. Kumar , A. Angerami , S. A. Bass , S. Cao , Y. Chen , J. Coleman , L. Cunqueiro , T. Dai
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L. Du R. Ehlers H. Elfner D. Everett W. Fan R. Fries C. Gale Y. He M. Heffernan U. Heinz B. V. Jacak P. M. Jacobs S. Jeon K. Kauder W. Ke E. Khalaj M. Kordell II T. Luo M. Luzum A. Majumder M. McNelis J. Mulligan C. Nattrass D. Oliinychenko D. Pablos L. G. Pang C. Park J.-F. Paquet J. H. Putschke G. Roland B. Schenke L. Schwiebert C. Shen A. Silva C. Sirimanna R. A. Soltz Y. Tachibana G. Vujanovic X. -N. Wang R. L. Wolpert Y. Xu Z. Yang (JETSCAPE Collaboration)
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classification ⚛️ nucl-th hep-phnucl-ex
keywords quenchingdescriptiondominatedenergyframeworklossmodelmulti-stage
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We present a jet quenching model within a unified multi-stage framework and demonstrate for the first time a simultaneous description of leading hadrons, inclusive jets, and elliptic flow observables which spans multiple centralities and collision energies. This highlights one of the major successes of the JETSCAPE framework in providing a tool for setting up an effective parton evolution that includes a high-virtuality radiation dominated energy loss phase (MATTER), followed by a low-virtuality scattering dominated (LBT) energy loss phase. Measurements of jet and charged-hadron $R_{AA}$ set strong constraints on the jet quenching model. Jet-medium response is also included through a weakly-coupled transport description.

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