Nearly perfect fluid in Au+Au collisions at RHIC

A. K. Chaudhuri

doi:10.1016/j.physletb.2009.10.068

Nearly perfect fluid in Au+Au collisions at RHIC

Nuclear Theory 2009-11-18 v2

Authors: A. K. Chaudhuri

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Abstract

In the Israel-Stewart's theory of dissipative hydrodynamics, we have analysed the STAR data on $\phi$ meson production in Au+Au collisions at $\sqrt{s}$ =200 GeV. From a simultaneous fit to $\phi$ mesons multiplicity, mean $p_T$ and integrated $v_2$ , we obtain a phenomenological estimate of QGP viscosity, $\eta/s =0.07 \pm 0.03 \pm 0.14$ , the first error is due to the experimental uncertainty in STAR measurements, the second reflects the uncertainties in initial and final conditions of the fluid.

Keywords

quark-gluon plasma viscosity hydrodynamics phi meson Au+Au collisions RHIC Israel-Stewart theory

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@article{arxiv.0909.0391,
  title  = {Nearly perfect fluid in Au+Au collisions at RHIC},
  author = {A. K. Chaudhuri},
  journal= {arXiv preprint arXiv:0909.0391},
  year   = {2009}
}

Comments

5 pages, 6 figures. Version accepted for publication in Phys. Lett. B

Nearly perfect fluid in Au+Au collisions at RHIC

Abstract

Keywords

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