Heavy Ion results on hard scattering and jet quenching

A review of recent results from ATLAS and CMS on hard scattering and jet quenching in lead-lead collisions at the Large Hadron Collider (LHC) will be presented. Jets provide a powerful tool for probing the dynamics of the quark gluon plasma created in Pb+Pb collisions at the LHC. The modification of high-pT parton showers as they propagate in the quark gluon plasma, often referred to as "jet quenching", provides insight on the short-distance dynamics of the plasma. Jet quenching has been observed in a variety of single jet, dijet, and photon-jet measurements at the LHC as well as in measurements of modified charged-particle fragmentation functions. Results of such measurements from Pb+Pb collisions at 2.76 TeV will be presented and compared to results from p-p and p+Pb collisions. Results of control measurements of photons, W’s, and Z’s will also be presented.