Centrality dependence of elliptic flow and QGP viscosity

Nov, 2009
7 pages
Published in:
  • J.Phys.G 37 (2010) 075011
e-Print:

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Abstract: (arXiv)
In the Israel-Stewart's theory of second order hydrodynamics, we have analysed the recent PHENIX data on charged particles elliptic flow in Au+Au collisions. PHENIX data demand more viscous fluid in peripheral collisions than in central collisions. Over a broad range of collision centrality (0-10%- 50-60%), viscosity to entropy ratio (η/s\eta/s) varies between 0-0.17.
Note:
  • Final version to be publiashed in J. Phys. G. 8 pages, 6 figures and 3 tables
  • 47.75.+f
  • 25.75.Ld
  • 25.75.-q
  • viscosity
  • elliptic flow
  • entropy: density
  • PHENIX
  • hydrodynamics
  • PHOBOS
  • heavy ion: scattering