Author/Authors :
G.L. Ma، نويسنده , , S. Zhang، نويسنده , , Y.G. Ma، نويسنده , , X.Z. Cai، نويسنده , , J.H. Chen، نويسنده , , Z.J. He، نويسنده , , H.Z. Huang، نويسنده , , J.L. Long، نويسنده , , W.Q. Shen، نويسنده , , X.H. Shi، نويسنده , , C. Zhong، نويسنده , , J.X. Zuo، نويسنده ,
Abstract :
With a multi-phase transport model (AMPT) with both partonic and hadronic interactions, two- and three-particle azimuthal correlations in Au + Au collisions at View the MathML source have been studied by the mixing-event technique. A Mach-like structure has been observed in two- and three-particle correlations in central collisions. It has been found that both partonic and hadronic dynamical mechanisms contribute to the Mach-like structure. However, only hadronic rescattering is unable to reproduce experimental amplitude of Mach-like structure, and parton cascade process is indispensable. The results of three-particle correlation indicate a partonic Mach-like shock wave can be produced by strong parton cascade in central Au+Au collisions.
