Partons traversing the hot and dense medium of deconfined color charges produced in collisions of heavy nuclei are expected to lose their energy primarily through medium-induced gluon bremsstrahlung. As a result, the amount of induced energy loss is expected to depend on the QCD color charge carried by the parton, i.e. depend on whether it is a quark- or a gluon-initiated jet. In this seminar, photon+jet events taken with the ATLAS detector in Pb+Pb and pp collisions  will be present to constrain the color-charge dependence of jet energy loss.
Furthermore, the presence of jets modifies the medium, leading to phenomena such as Mach Cones and diffusion wakes. The recent measurement of jet-hadron correlations in angular space in photon-jet events with ATLAS  will be discussed in the pursuit of identifying potential diffusion wake signatures.
 PLB 846 (2023) 138154 https://doi.org/10.1016/j.physletb.2023.138154
 ATLAS-CONF-2023-054 http://cds.cern.ch/record/2870221