Study of jet quenching in heavy ion collisions with the ATLAS detector

Jets production in ultra-relativistic heavy ion collisions provides understanding of the mechanisms responsible for the hard scattered partons energy loss while crossing the hot and dense medium. The large acceptance and high granularity of the ATLAS Detector is well suited to study the phenomenon of jet suppression, namely the dependence on the jet transverse momentum and size, as well as the internal structure modification. Measurements of these observables provided by the Pb+Pb collision data collected during the 2010 and 2011 LHC runs, at the nucleon-nucleon center of mass energy of 2.76 TeV, are presented.