A lattice based equation of state and $φ$ meson production in $\sqrt{s}$=6-200 GeV Pb+Pb and Au+Au collisions

Details A lattice based equation of state and $φ$ meson production in $\sqrt{s}$=6-200 GeV Pb+Pb and Au+Au collisions A lattice based equation of state and $φ$ meson production in $\sqrt{s}$=6-200 GeV Pb+Pb and Au+Au collisions

2009-11-24

arxiv.org/abs/0911.4556v2

Physics

Nuclear Physics

Nuclear Theory

6 pages, 3 figures. Revised version. A mistake was corrected. We claim that threshold energy for confinemnet-deconfinement tra

Scientific paper

In a boost-invariant hydrodynamic model, we have analyzed $\phi$ meson production in Pb+Pb and Au+Au collisions, in the centre of mass energy range $\sqrt{s}$= 6-200 GeV. Hydrodynamic evolution is governed by a lattice based equation of state with a confinement-deconfinement {\em cross over} at $T_{co}$=196 MeV. We also look for the threshold energy above which the confined matter undergoes a deconfinement transition. Analysis indicate that above a threshold energy, ${\sqrt{s}}_{th}$=$13.65 \pm 3.06$ GeV, the fluid medium crosses over from a confined phase to a deconfined phase.

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