A Hydrodynamic and Transport Model for Ultrarelativistic Heavy Ion Collisions at RHIC and LHC Energies

Yan, Y. L. and Cheng, Y. and Zhou, D. M. and Dong, B. G. and Cai, X. and Sa, B. H. and Csernai, László Pál (2013) A Hydrodynamic and Transport Model for Ultrarelativistic Heavy Ion Collisions at RHIC and LHC Energies. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 40 (2). ISSN 0954-3899

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Abstract

Combining the hydrodynamic model (Hydro code) and the transport model (PACIAE model), we present the Hydro-PACIAE hybrid model. We use the Hydro-PACIAE hybrid model to calculate Au+Au collisions at √sNN=130 GeV and Pb+Pb collisions at √sNN=2.76 TeV. The obtained pseudo-rapidity and transverse momentum distributions well reproduce the experimental data. This shows that the Hydro-PACIAE hybrid model is useful to describe the ultrarelativistic Heavy Ion Collisions at RHIC and LHC Energies. We used the hybrid model to calculate the elliptical flow for the Pb+Pb collisions at √sNN=2.76 TeV. The v2 values are bigger than the experimental data at high pT , and will become bigger when the Hydro evolution time is longer. The results indicate that the selection of the transition hypersurface has significant effect on the observable quantities.

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