Measurements of higher order flow harmonics in Au+Au collisions at √sNN=200GeV

L. Baksay, Awadhesh Kumar Dubey, Mihael Makek, Alexander Milov, Deepali Sharma, Itzhak Tserruya,

Research output: Contribution to journalArticlepeer-review


Flow coefficients vn for n=2, 3, 4, characterizing the anisotropic collective flow in Au+Au collisions at √sNN=200GeV, are measured relative to event planes Ψn, determined at large rapidity. We report vn as a function of transverse momentum and collision centrality, and study the correlations among the event planes of different order n. The vn are well described by hydrodynamic models which employ a Glauber Monte Carlo initial state geometry with fluctuations, providing additional constraining power on the interplay between initial conditions and the effects of viscosity as the system evolves. This new constraint can serve to improve the precision of the extracted shear viscosity to entropy density ratio η/s.

Original languageEnglish
Article number252301
JournalPhysical review letters
Issue number25
StatePublished - 14 Dec 2011

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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