Abstract
We present first results of the CMS experiment from PbPb collisions at = 2.76 TeV, probing quark and gluon matter at unprecedented values of energy density. The capabilities of the CMS detector allow us to investigate various hard probes, as well as bulk particle production and collective phenomena, using the calorimetry, 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 November 2010 PbPb run at = 2.76 TeV, was analyzed and multiple measurements of the properties of the hot and dense matter were obtained. Global event properties, detailed study of jet production and jet properties, isolated photons, quarkonia and weak bosons were measured and compared to pp data and Monte Carlo simulations.
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