Isotropization and Hydrodynamization in Weakly Coupled Heavy-Ion Collisions

We numerically solve the (2+1)-dimensional effective kinetic theory of weak coupling QCD under longitudinal expansion, relevant for early stages of heavy-ion collisions. We find agreement with viscous hydrodynamics and classical Yang-Mills simulations in the regimes where they are applicable. By cho...

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Bibliographic Details
Published inPhysical review letters Vol. 115; no. 18; p. 182301
Main Authors Kurkela, Aleksi, Zhu, Yan
Format Journal Article
LanguageEnglish
Published United States 30.10.2015
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Summary:We numerically solve the (2+1)-dimensional effective kinetic theory of weak coupling QCD under longitudinal expansion, relevant for early stages of heavy-ion collisions. We find agreement with viscous hydrodynamics and classical Yang-Mills simulations in the regimes where they are applicable. By choosing initial conditions that are motivated by a color-glass-condensate framework, we find that for Q_{s}=2 GeV and α_{s}=0.3 the system is approximately described by viscous hydrodynamics well before τ≲1.0 fm/c.
ISSN:1079-7114
DOI:10.1103/physrevlett.115.182301