Measurements of jet quenching and heavy flavor production with the ATLAS detector

Measurements of jet suppression in Pb + Pb collisions by the ATLAS Collaboration are reported. The production of inclusive jet yields as a function of jet image, collision centrality and jet size parameter R are measured and presented through the central-to-peripheral ratio, image. Jets are found to be suppressed in central collisions relative to peripheral collisions by approximately a factor of two. The suppression is found to show almost no variation with jet image, and the image is found to increase slighly with increasing R. Measurements of heavy quark energy loss are also presented using muons from semi-leptonic decays of heavy flavor hadrons. The maximal suppression is observed to be image and shows no significant depedence on the muon image.