Journal
NUCLEAR PHYSICS A
Volume 916, Issue -, Pages 249-259Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysa.2013.08.004
Keywords
Hydrodynamic models; Relativistic heavy-ion collisions; Kinetic and transport theory of gases; Quark-gluon plasma
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Funding
- Polish National Science Center with decision [DEC-2012/06/A/ST2/00390]
- Polish National Science Center [DEC-2012/071D/ST2/02125]
- Foundation for Polish Science
- Division Of Physics
- Direct For Mathematical & Physical Scien [1068765] Funding Source: National Science Foundation
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We exactly solve the relaxation-time approximation Boltzmann equation for a system which is transversely homogeneous and undergoing boost-invariant longitudinal expansion. We compare the resulting exact numerical solution with approximate solutions available in the anisotropic hydrodynamics and second order viscous hydrodynamics frameworks. In all cases studied, we find that the anisotropic hydrodynamics framework is a better approximation to the exact solution than traditional viscous hydrodynamical approaches. (C) 2013 Elsevier BA .All rights reserved.
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