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4-11 July 2012
Melbourne Convention and Exhibition Centre
Australia/Melbourne timezone
ICHEP2012 - 36th International Conference for High Energy Physics

Dijet imbalance in 2.76 TeV PbPb collisions in CMS

6 Jul 2012, 10:15
Room 217 (Melbourne Convention and Exhibition Centre)

Room 217

Melbourne Convention and Exhibition Centre

Melbourne Australia
Parallel Sessions Track 9. Heavy Ion Collisions Room 217 - Heavy Ion Collisions / B-Physics / CP Violation - TR5/7/9


Dr David Krofcheck (University of Auckland (NZ))


Jet production in PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV is studied with the CMS detector at the LHC. Jets are reconstructed using the energy deposited in the CMS calorimeters. A large dijet imbalance is observed in central PbPb collisions, which reduces in the more peripheral collisions. This observation is consistent with a jet quenching scenario, where the parton loose energy propagating through the hot and dense QCD medium. Detailed studies of the jet properties and jet-hadron correlations will be presented.

Primary author

Dr David Krofcheck (University of Auckland (NZ))

Presentation materials