Three-Particle Correlations from Parton Cascades in Au+Au Collisions

G. L. Ma; Y. G. Ma; S. Zhang; X. Z. Cai; J. H. Chen; Z. J. He; H. Z. Huang; J. L. Long; W. Q. Shen; X. H. Shi; C. Zhong; J. X. Zuo

doi:10.1016/j.physletb.2007.02.008

Three-Particle Correlations from Parton Cascades in Au+Au Collisions

Nuclear Theory 2008-11-26 v5 High Energy Physics - Phenomenology Nuclear Experiment

Authors: G. L. Ma , Y. G. Ma , S. Zhang , X. Z. Cai , J. H. Chen , Z. J. He , H. Z. Huang , J. L. Long , W. Q. Shen , X. H. Shi , C. Zhong , J. X. Zuo

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Abstract

We present a study of three-particle correlations among a trigger particle and two associated particles in Au + Au collisions at $\sqrt{s_{NN}}$ = 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.

Keywords

three-particle correlations Au+Au collisions parton cascade Mach-like shock waves AMPT model nuclear collisions

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@article{arxiv.nucl-th/0608050,
  title  = {Three-Particle Correlations from Parton Cascades in Au+Au Collisions},
  author = {G. L. Ma and Y. G. Ma and S. Zhang and X. Z. Cai and J. H. Chen and Z. J. He and H. Z. Huang and J. L. Long and W. Q. Shen and X. H. Shi and C. Zhong and J. X. Zuo},
  journal= {arXiv preprint arXiv:nucl-th/0608050},
  year   = {2008}
}

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9 pages, 6 figures; Final version to appear in Physics Letters B

Three-Particle Correlations from Parton Cascades in Au+Au Collisions

Abstract

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