Hard Probes at ATLAS

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