Physics & Astronomy Faculty and Staff Publications

Document Type

Article

Publication Date

12-16-2011

Abstract

Flow coefficients vn for n = 2, 3, 4, characterizing the anisotropic collective flow in Au + Au collisions at square root of S(NN) = 200 GeV, are measured relative to event planes psin, 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 n/s.

Publisher

American Physical Society

Publication Title

Physical Review Letters

Volume

107

Issue

25

First Page

1

Last Page

7

Language (ISO)

English

Sponsorship

American Physical Society

Comments

http://prl.aps.org/pdf/PRL/v107/i25/e252301

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