Three-Particle Correlations from Parton Cascades in Au+Au Collisions
arXiv:nucl-th/0608050 · doi:10.1016/j.physletb.2007.02.008
Abstract
We present a study of three-particle correlations among a trigger particle and two associated particles in Au + Au collisions at = 200 GeV using a multi-phase transport model (AMPT) with both partonic and hadronic interactions. We found that three-particle correlation densities in different angular directions with respect to the triggered particle (`center', `cone', `deflected', `near' and `near-away') increase with the number of participants. The ratio of `deflected' to `cone' density approaches to 1.0 with the increasing of number of participants, which indicates that partonic Mach-like shock waves can be produced by strong parton cascades in central Au+Au collisions.
arXiv comment9 pages, 6 figures; Final version to appear in Physics Letters B
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