Hard Probes with ATLAS

An overview of the latest results on high-transverse momentum particle production in lead-lead collisions at a center-of-mass energy sqrt(s_NN)=2.76 TeV obtained with the ATLAS experiment is presented. In particular an update of measurements on jet quenching is discussed including a jet yield suppression as a function of jet radii and a modification of jet fragmentation functions. Also results on Z boson and isolated direct photon production are shown, also in conjunction with jets, which reveal a transverse momentum imbalance of the system. These results bring some further insight into parton shower modifications due to interactions with the medium. A majority of measurements use the entire statistics of the 2011 lead-lead run.