| Article | |
| Title | Initial conditions for heavy ion collisions with QCD kinetic theory |
| Author(s) | Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (Heidelberg U.) ; Paquet, Jean-Francois (Duke U.) ; Schlichting, Soeren (Bielefeld U.) ; Teaney, Derek (YITP, Stony Brook) |
| Publication | SISSA, 2018 |
| Number of pages | 6 |
| In: | PoS High-pT2017 (2019) 001 |
| In: | 12th International workshop on high-pT physics in the RHIC/LHC era (HPT), Bergen, Norvege, 2 - 5 Oct 2017, pp.001 |
| DOI | 10.22323/1.320.0001 |
| Subject category | Nuclear Physics - Theory ; Particle Physics - Phenomenology |
| Abstract | We employ the leading order QCD kinetic theory to describe a consistent matching betweenthe initial stage of a heavy ion collision and the subsequent hydrodynamic evolution. We usethe linearized kinetic response functions around the non-equilibirum longitudinally expandingbackground to map initial energy and momentum perturbations to the energy momentum tensorat hydrodynamic initialization time τ hydro . We check that hadronic observables then becomerather insensitive to the cross-over time between kinetic theory and viscous hydrodynamics. Theuniversal scaling of kinetic response in units of kinetic relaxation time allows for astraightforward application of kinetic pre-equilibration event-by-event. |
| Copyright/License | © 2019-2024 the author(s) (License: CC-BY-NC-ND-4.0) |
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Record created 2022-09-16, last modified 2022-09-16