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

Sep, 2011
10 pages
Published in:
  • Phys.Rev.C 85 (2012) 024901
e-Print:

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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