Abstract
The phenomenon of events containing highly asymmetric dijet pairs is one of the most striking results in heavy ion physics, providing the first direct observation of in-medium jet energy loss at the Large Hadron Collider. Detailed measurements of a centrality-dependent dijet imbalance in 2.76 TeV Pb + Pb collisions using data collected by the ATLAS detector in the 2011 LHC heavy ion run are presented. The new analysis provides a measurement, fully corrected for detector effects to the particle level, of the centrality- and leading jet transverse momentum-(pT-) dependence of the dijet pT balance distribution, compared to an analogous measurement in pp collisions at the same center-of-mass energy.
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