Publication : t12/018

Anisotropic flow in event-by-event ideal hydrodynamic simulations of sqrt(s_NN)=200 GeV Au+Au collisions

Gardim F.G. (Instituto de Física, Universidade São Paulo, CEP 05508-090 Cidade Universitaria, São Paulo - Brasil)
Grassi F. (Instituto de Física, Universidade São Paulo, CEP 05508-090 Cidade Universitaria, São Paulo - Brasil)
Luzum M. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
Ollitrault J.-Y. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
Abstract:
We calculate flow observables with the NeXSPheRIO ideal hydrodynamic model and make the first comparison to the complete set of mid-rapidity flow measurements made by the PHENIX collaboration in top energy Au+Au collisions. A simultaneous calculation of v_2, v_3, v_4, and the first event-by-event calculation of quadrangular flow defined with respect to the v_2 event plane (v_4{Psi_2}) gives good agreement with measured values, including the dependence on both transverse momentum and centrality. This provides confirmation that the collision system is indeed well described as a quark-gluon plasma with an extremely small viscosity, and that correlations are dominantly generated from collective effects. In addition we present a prediction for v_5.
Année de publication : 2012
Revue : Phys. Rev. Lett. 109 202302 (2012)
DOI : 10.1103/PhysRevLett.109.202302
Preprint : arXiv:1203.2882
Langue : Anglais

 

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