Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-12-19
J.Phys.G36:064035,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, 10 figures, plenary talk at International Conference on Strangeness in Quark Matter 2008, Beijing, China, October 6-1
Scientific paper
10.1088/0954-3899/36/6/064035
Employing the perturbative QCD inspired parton cascade, we investigate kinetic and chemical equilibration of the partonic matter created in central heavy ion collisions at RHIC and LHC energies. Two types of initial conditions are chosen. One is generated by the model of wounded nucleons using the PYTHIA event generator and Glauber geometry. Another is considered as a color glass condensate. We show that kinetic equilibration is almost independent on the chosen initial conditions, whereas there is a sensitive dependence for chemical equilibration. The time scale of thermalization lies between 1 and 1.5 fm/c. The final parton transverse energy obtained from BAMPS calculations is compared with the RHIC data and is estimated for the LHC energy.
Cheng Luan
El Andrej
Gallmeister Kai
Greiner Carsten
Xu Zhe
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