title: Isotropization and Hydrodynamization in Weakly Coupled Heavy-Ion Collisions.
abstract: 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.
authors.affiliation: Physics Department, Theory Unit, CERN, CH-1211 Genève 23, Switzerland.|Faculty of Science and Technology, University of Stavanger, 4036 Stavanger, Norway.
authors.forename: Aleksi
authors.initials: A
authors.lastname: Kurkela
authors.affiliation: Departamento de Fisica de Particulas and IGFAE, Universidade de Santiago de Compostela, E-15706 Santiago de Compostela, Galicia, Spain.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhu