Study of path-length dependent energy loss of jets in p--Pb and Pb--Pb collisions with ALICE

Abstract

Jet quenching, a standard signature of quark--gluon plasma (QGP) formation in which jets lose energy by traversing the medium, comprises a well-studied set of observables in heavy-ion collisions. Significant questions remain, however, concerning the mechanisms driving this phenomenon. Theoretical work that attempts to address these open questions offers the path-length dependence of jet energy loss as one way to better understand the underlying mechanisms of jet quenching. It has proven challenging, however, to derive explicit values for the path-length dependence from experimental data. These proceedings discuss recent results from ALICE that attempt to contribute to our understanding of this phenomenon, including results of event-shape engineered jet spectra, the jet-particle $v_2$, and correlation studies between hard triggers and hadrons.

arXiv commentProceedings of The XXIXth International Conference on Ultra-relativistic Nucleus-Nucleus Collisions, April 2022