  Jet production in PbPb collisions at a nucleon-nucleon center-of-mass energy
of 2.76 TeV was studied using the CMS detector at the LHC, using a data sample
corresponding to an integrated luminosity of 6.7 inverse microbarn. Dijets were
reconstructed using the CMS calorimeters, and a significant energy imbalance
was observed between the leading jet and the away-side jet with increasing
centrality. Correlation studies of jets and tracks reveal that the energy of
the away-side jet is redistributed to lower pt and wider angle outside of the
jet cone.
