Higher flow harmonics from (3+1)D event-by-event viscous hydrodynamics
Sep, 2011Citations per year
Abstract: (arXiv)
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.Note:
- 10 pages, 13 figures, version 2: typo corrected
- 24.10.Nz
- 47.75.+f
- 25.75.Ld
- 12.38.Mh
- hydrodynamics: viscosity
- flow: anisotropy
- heavy ion: scattering
- quark gluon: plasma
- Brookhaven RHIC Coll
- gold
References(64)
Figures(20)