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Initial conditions for heavy ion collisions with QCD kinetic theory / Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (Heidelberg U.) ; Paquet, Jean-Francois (Duke U.) ; Schlichting, Soeren (Bielefeld U.) ; Teaney, Derek (YITP, Stony Brook)
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 . [...]
SISSA, 2018 - 6 p. - Published in : PoS High-pT2017 (2019) 001 Fulltext: PDF;
In : 12th International workshop on high-pT physics in the RHIC/LHC era (HPT), Bergen, Norvege, 2 - 5 Oct 2017, pp.001

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(91)

Matching the non-equilibrium initial stage of heavy ion collisions to hydrodynamics with QCD kinetic theory / Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (U. Heidelberg, ITP) ; Paquet, Jean-Francois (Duke U.) ; Schlichting, Sören (Bielefeld U.) ; Teaney, Derek (SUNY, Stony Brook)
In the collision of nuclei at high energies the produced matter reinteracts and forms a plasma which ultimately equilibrates and exhibits collective hydrodynamic flow. While a general theory of the equilibration process has been outlined previously, there were no practical frameworks to smoothly connect the early gluon production in classical field simulations with hydrodynamic simulations of the late time plasma expansion. [...]
SISSA, 2019 - 10 p. - Published in : PoS Confinement2018 (2019) 152 Fulltext: PDF;
In : 13th Quark Confinement and the Hadron Spectrum, Maynooth, Ireland, 31 Jul - 6 Aug 2018, pp.152

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(71)

Matching the non-equilibrium initial stage of heavy ion collisions to hydrodynamics with QCD kinetic theory / Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (U. Heidelberg, ITP ; Stony Brook U.) ; Paquet, Jean-François (Duke U. ; Stony Brook U.) ; Schlichting, Sören (Washington U., Seattle) ; Teaney, Derek (Stony Brook U.)
High-energy nuclear collisions produce a nonequilibrium plasma of quarks and gluons which thermalizes and exhibits hydrodynamic flow. There are currently no practical frameworks to connect the early particle production in classical field simulations to the subsequent hydrodynamic evolution. [...]
arXiv:1805.01604.- 2019-03-28 - 7 p. - Published in : Phys. Rev. Lett. 122 (2019) 122302 Article from SCOAP3: PDF; Fulltext: PDF; External link: GitHub

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(60)

Effective kinetic description of event-by-event pre-equilibrium dynamics in high-energy heavy-ion collisions / Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (Heidelberg U. ; Stony Brook U.) ; Paquet, Jean-François (Duke U. ; Stony Brook U.) ; Schlichting, Sören (Washington U., Seattle) ; Teaney, Derek (Stony Brook U.)
We develop a macroscopic description of the space-time evolution of the energy-momentum tensor during the pre-equilibrium stage of a high-energy heavy-ion collision. Based on a weak coupling effective kinetic description of the microscopic equilibration process (\`a la "bottom-up"), we calculate the non-equilibrium evolution of the local background energy-momentum tensor as well as the non-equilibrium linear response to transverse energy and momentum perturbations for realistic boost-invariant initial conditions for heavy ion collisions. [...]
arXiv:1805.00961.- 2019-03-28 - 43 p. - Published in : Phys. Rev. C 99 (2019) 034910 Article from SCOAP3: PDF; Fulltext: PDF; External link: GitHub

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(42)

2+1D simulations of pre-equilibrium stage with QCD kinetic theory / Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (Heidelberg U.) ; Paquet, Jean-François (Duke U.) ; Schlichting, Sören (Bielefeld U.) ; Teaney, Derek (Stony Brook U.)
The produced matter in the high energy nuclear collisions reinteracts and forms a plasma which ultimately equilibrates and exhibits collective hydrodynamic flow. The connection between the early gluon production in classical field simulations and hydrodynamic expansion at later times is given by the QCD kinetic theory. [...]
SISSA, 2019 - 6 p. - Published in : PoS HardProbes2018 (2018) 111 Fulltext: PDF; External link: PoS server
In : Hard Probes 2018: International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions, Aix-les-bains, France, 1 - 5 Oct 2018, pp.111

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(22)

QCD Shear Viscosity at (almost) NLO / Ghiglieri, Jacopo (CERN) ; Moore, Guy D. (Darmstadt, Tech. Hochsch.) ; Teaney, Derek (SUNY, Stony Brook)
We compute the shear viscosity of QCD with matter, including almost all next-to-leading order corrections -- that is, corrections suppressed by one power of $g$ relative to leading order. We argue that the still missing terms are small. [...]
arXiv:1802.09535; CERN-TH-2018-009.- 2018-04-04 - 36 p. - Published in : JHEP 03 (2018) 179 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;

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Initial conditions for hydrodynamics from kinetic theory equilibration / Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (SUNY, Stony Brook ; U. Heidelberg, ITP) ; Paquet, Jean-François (SUNY, Stony Brook) ; Schlichting, Sören (Washington U., Seattle) ; Teaney, Derek (SUNY, Stony Brook)
We use effective kinetic theory to study the pre-equilibrium dynamics in heavy-ion collisions. We describe the evolution of linearized energy perturbations on top of out-of-equilibrium background to the energy-momentum tensor at a time when hydrodynamics becomes applicable. [...]
arXiv:1704.05242.- 2017-11 - 4 p. Fulltext: PDF;
In : The XXVI international conference on ultrarelativistic heavy-ion collisions, Chicago, United States Of America, 6 - 11 Feb 2017, pp.289-292

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(8)

Illuminating the early stages of relativistic heavy-ion collisions: the pre-hydro phase as seen through photons and hadrons / Schenke, Bjoern (speaker) (Brookhaven National Lab) ; Shen, Chun (speaker) (Wayne State University) ; Paquet, Jean-Francois (speaker) (Duke University)
We model relativistic heavy-ion collisions with a hydrid dynamical approach which consists of an IP-Glasma initial state followed by a phase modeled by an effective QCD kinetic theory [1]. This then leads into viscous hydrodynamics and finally transport theory (MUSIC + UrQMD) [2] [...]
2020 - 1224. Conferences; 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions External links: Talk details; Event details In : 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

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(8)

Initial conditions for hydrodynamics from weakly coupled pre-equilibrium evolution / Keegan, Liam (CERN) ; Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (SUNY, Stony Brook) ; Teaney, Derek (SUNY, Stony Brook)
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. [...]
arXiv:1605.04287; CERN-TH-2016-117; CERN-TH-2016-117.- 2016-08-31 - 15 p. - Published in : JHEP 08 (2016) 171 Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF;

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(5)

Chemical equilibration in weakly coupled QCD / Kurkela, Aleksi (CERN) ; Mazeliauskas, Aleksas (Heidelberg U.)
We study thermalization, hydrodynamization, and chemical equilibration in out-of-equilibrium Quark-Gluon Plasma starting from various initial conditions using QCD effective kinetic theory, valid at weak coupling. In non-expanding systems gauge bosons rapidly lose information of the initial state and achieve kinetic equilibrium among themselves, while fermions approach the equilibrium distribution only at later time. [...]
arXiv:1811.03068; CERN-TH-2018-239.- 2019-03-26 - 11 p. - Published in : Phys. Rev. D 99 (2019) 054018 Article from SCOAP3: PDF; Fulltext: PDF;

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