Hard probes in 2.76 TeV PbPb collisions in CMS

This paper presents a brief overview of recent results from CMS at $\sqrt s$=2.76 TeV using hard probes to study quark and gluon matter in high-energy PbPb collisions. The capabilities of the CMS apparatus allow us to investigate these various hard probes using the calorimeter, muon and tracking systems covering a large range in pseudorapidity, complemented by a flexible two-level trigger system for both proton-proton and ion-ion collisions. The data collected during the 2010 and 2011 PbPb run at $\sqrt{s_{NN}}$ = 2.76 TeV, was analyzed and multiple measurements of the properties of the hot and dense matter were obtained. Detailed studies of jet production and jet properties, isolated photons, quarkonia and weak bosons were performed and compared to pp data and Monte Carlo simulations.