Back-to-back correlations of high pT hadrons in relativistic heavy ion collisions
Abstract
We investigate the suppression factor and the azimuthal correlation function for high pT hadrons in central Au+Au collisions at sNN=200 GeV by using a dynamical model in which hydrodynamics is combined with explicitly traveling jets. We study the effects of parton energy loss in a hot medium, intrinsic kT of partons in a nucleus, and p broadening of jets on the back-to-back correlations of high pT hadrons. Parton energy loss is found to be a dominant effect on the reduction of the away-side peaks in the correlation function.
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