arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.02893hep-ph
收藏

On the breaking of Casimir scaling in jet quenching

Liliana Apolinário, João Barata, Guilherme Milhano

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑