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On the breaking of Casimir scaling in jet quenching

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arxiv 2003.02893 v2 pith:MGHR6LDP submitted 2020-03-05 hep-ph

classification hep-ph
keywords scalingmediumcasimirjetsbreakingcarlogeneratormonte
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abstract

We study the breaking of Casimir scaling, $C_F/C_A$, due to the evolution of jets in a hot and extended medium. By using JEWEL, a medium modified Monte Carlo event generator validated for a wide set of observables, we are able to study separately the development of quark and gluon-initiated jets produced back-to-back with a $Z-$boson. Focusing on the $p_T$ distribution, we conclude first that the colour charge ratio is constant but larger than Casimir scaling for high $p_T$ jets. In addition, our results seem to indicate that the medium induced cascade is more similar between quarks and gluons, thus driving the overall medium shower scaling away from the vacuum expectation. Finally, we compare our results to another Monte Carlo generator and observe the same scaling violation.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Constraining Jet Quenching in Heavy-Ion Collisions with Bayesian Inference

    hep-ph 2024-11 conditional novelty 6.0 of 10

    A Bayesian fit to LHC jet data claims a universal jet energy-loss distribution and super-Casimir color dependence, but the color result depends on a theory-informed prior.

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