Initial conditions for hydrodynamics from weakly coupled pre-equilibrium evolution

Workshop for young scientists on the physics of ultrarelativistic nucleus-nucleus collisions 2016

Mazeliauskas, Aleksas^1

Department of Physics and Astronomy, Stony Brook University, Stony Brook

NY

11794, United States^1

关键词: Energy-momentum tensor;    Flow perturbations;    Heavy ion collision;    Initial conditions;    Initial perturbation;    Leading orders;    Thermal evolution;    Transverse energy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/832/1/012016/pdf
DOI  :  10.1088/1742-6596/832/1/012016

来源: IOP

【 摘 要 】

We use leading order effective kinetic theory to simulate the pre-equilibrium evolution of transverse energy and flow perturbations in heavy-ion collisions. We provide a Green function which propagates the initial perturbations of the energy-momentum tensor to a time when hydrodynamics becomes applicable. With this map, the pre-thermal evolution from saturated nuclei to hydrodynamics can be modeled in the framework of weakly coupled QCD.