Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2011-02-21
Physics
Nuclear Physics
Nuclear Theory
Presented at 24th International Nuclear Physics Conference (INPC2010), Vancouver, Canada, 4-9 July 2010
Scientific paper
A hot and dense partonic system can be produced in the early stage of a relativistic heavy ion collision. How it equilibrates is important for the extraction of Quark-Gluon Plasma properties. We study the chemical and kinetic equilibrations of the Quark-Gluon Plasma using a radiative transport model. Thermal and Color-Glass-Condensate motivated initial conditions are used. We observe that screened parton interactions always lead to partial pressure isotropization. Different initial pressure anisotropies result in the same asymptotic evolution. Comparison of evolutions with and without radiative processes shows that chemical equilibration interacts with kinetic equilibration and radiative processes can contribute significantly to pressure isotropization.
Wortman Warner A.
Zhang Bin
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