Initial conditions for hydrodynamics from weakly coupled pre-equilibrium evolution
High Energy Physics - Phenomenology
2016-09-21 v2 Nuclear Theory
Abstract
We use effective kinetic theory, accurate at weak coupling, 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 to the energy-momentum tensor at a time when hydrodynamics becomes applicable. With this map, the complete pre-thermal evolution from saturated nuclei to hydrodynamics can be modelled in a perturbatively controlled way.
Cite
@article{arxiv.1605.04287,
title = {Initial conditions for hydrodynamics from weakly coupled pre-equilibrium evolution},
author = {Liam Keegan and Aleksi Kurkela and Aleksas Mazeliauskas and Derek Teaney},
journal= {arXiv preprint arXiv:1605.04287},
year = {2016}
}
Comments
25 pages, 9 figures (prepared for submission to JHEP). Differences from version 1: updated figures 3(b), 5, 7, 8 and 9, replaced appendix A