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arXiv · 1109.6289

Higher flow harmonics from (3+1)D event-by-event viscous hydrodynamics

Bjoern Schenke·Sangyong Jeon·Charles Gale
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Abstract

We present event-by-event viscous hydrodynamic calculations of the anisotropic flow coefficients v_2 to v_5 for heavy-ion collisions at the Relativistic Heavy-Ion Collider (RHIC). We study the dependence of different flow harmonics on shear viscosity and the morphology of the initial state. v_3 and higher flow harmonics exhibit a particularly strong dependence on both the initial granularity and shear viscosity. We argue that a combined analysis of all available flow harmonics will allow to determine eta/s of the quark gluon plasma precisely. Presented results strongly hint at a value (eta/s)_QGP < 2/4pi at RHIC. Furthermore, we demonstrate the effect of shear viscosity on pseudo-rapidity spectra and the mean transverse momentum as a function of rapidity.

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Bjoern Schenke, Sangyong Jeon, Charles Gale. 2011-09-30. Higher flow harmonics from (3+1)D event-by-event viscous hydrodynamics. https://doi.org/10.1103/physrevc.85.024901

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