Jet physics in Pb-Pb collisions with ATLAS

The existing measurements of hard probes at RHIC done do not provide a sufficient quantitative insight to the details of energy loss of fast partons in the dense QCD medium. The majority of measurements are done using leading particles or two particle correlations. The energy range of LHC will provide a possibility to perform full jet reconstruction and to achieve high enough statistics to distinguish the differences among different theoretical predictions of energy loss. In this article we describe the basics of cone jet reconstruction strategy in heavy ion events with the ATLAS detector. Then, we concentrate on the expected accuracy of the measurement of fragmentation functions, jT distributions and jet shapes. We also show how sensitive these quantities are to the energy loss mechanism simulated by the PYQUEN generator.