Hydrodynamic radial and elliptic flow in heavy-ion collisions from AGS to LHC energies

Details Hydrodynamic radial and elliptic flow in heavy-ion collisions from AGS to LHC energies Hydrodynamic radial and elliptic flow in heavy-ion collisions from AGS to LHC energies

2008-06-27

arxiv.org/abs/0806.4539v2

Eur.Phys.J.C61:545-552,2009

Physics

Nuclear Physics

Nuclear Theory

10 pages, 6 figures. References and two footnotes added. To appear in European Physical Journal C in Hard Probes 2008 Special

Scientific paper

10.1140/epjc/s10052-008-0832-y

Using ideal relativistic hydrodynamics in 2+1 dimensions, we study the collision energy dependence of radial and elliptic flow, of the emitted hadron spectra, and of the transverse momentum dependence of several hadronic particle ratios, covering the range from Alternating Gradient Synchrotron (AGS) to Large Hadron Collider (LHC) energies. These calculations establish an ideal fluid dynamic baseline that can be used to assess non-equilibrium features manifest in future LHC heavy-ion experiments. Contrary to earlier suggestions we find that a saturation and even decrease of the differential elliptic flow v_2(p_T) with increasing collision energy cannot be unambiguously associated with the QCD phase transition.

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