High pT Probes in PbPb Collisions at ATLAS

Using the ATLAS detector several studies of the jet quenching effect in the hot, dense medium produced in the lead ions collisions at LHC were done. Different observables were investigated. The jet yield suppression with the increasing centrality was observed both in the dijet and the inclusive jets analyses. Path length dependence of the jet energy loss was also studied and shown to have a big effect on the jet suppression. Electroweak bosons (Z, g) were shown to be unaffected by the quark-gluon plasma, so could be used as an energy callibration scale for associated jets. The energy imbalance in the g-jet and Z-jet pairs was observed to strongly increase with centrality