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

作者：Schenke Bjoern^*; Jeon Sangyong; Gale Charles

来源：Physical Review C, 2012, 85(2): 024901.

DOI：10.1103/PhysRevC.85.024901

We present event-by-event viscous hydrodynamic calculations of the anisotropic flow coefficients nu(2) to nu(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. nu(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 has the potential to determine eta/s of the quark gluon plasma more precisely than previously. Presented results strongly hint at a value (eta/s)(QGP) < 2/4 pi at RHIC. Furthermore, we demonstrate the effect of shear viscosity on pseudorapidity spectra and the mean transverse momentum as a function of rapidity.

• 出版日期2012-2-9