HYDRO-PACIAE, a hydrodynamic and transport hybrid model for ultra-relativistic heavy ion collisions

Combining the particle in cell hydrodynamic model and the PACIAE transport model, we present the HYDRO-PACIAE hybrid model and then use it to investigate, as an example, the charged particle production in the Au + Au collisions at = 130 GeV and the Pb + Pb collisions at = 2.76 TeV. The calculated ch...

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Bibliographic Details
Published in:Journal of physics. G, Nuclear and particle physics Nuclear and particle physics, 2013-02, Vol.40 (2), p.25102-15
Main Authors: Yan, Yu-Liang, Cheng, Yun, Zhou, Dai-Mei, Dong, Bao-Guo, Cai, Xu, Sa, Ben-Hao, Csernai, Laszlo P
Format: Article
Language:English
Subjects:
Atomic collisions
Collisions
Computational fluid dynamics
Fluid flow
Lead (metal)
Mathematical models
Phase transformations
Transport
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Summary:Combining the particle in cell hydrodynamic model and the PACIAE transport model, we present the HYDRO-PACIAE hybrid model and then use it to investigate, as an example, the charged particle production in the Au + Au collisions at = 130 GeV and the Pb + Pb collisions at = 2.76 TeV. The calculated charged particle pseudo-rapidity distribution and transverse momentum distribution reproduce the corresponding experimental data. The experimental data of the elliptic flow parameter may also be explained. The HYDRO-PACIAE model is able to describe most features of the ultra-relativistic heavy ion collisions at RHIC and LHC energies, while it describes rapid non-equilibrium hadronization (freeze out) and allows for supercooled quark-gluon plasma. This is a feature not used in other hybrid models, which assume a phase transition via a mixed phase, phase equilibrium and/or 'crossover'.
ISSN:0954-3899
1361-6471
DOI:10.1088/0954-3899/40/2/025102