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Buda-Lund hydro model for ellipsoidally symmetric fireballs and the elliptic flow at RHIC

M. Csanad·T. Csorgo·B. Lorstad
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Abstract

The ellipsoidally symmetric extension of Buda-Lund hydrodynamic model is shown here to yield a natural description of the pseudorapidity dependence of the elliptic flow $v_2(η)$, as determined recently by the PHOBOS experiment for Au+Au collisions at $\sqrt{s_{NN}} = 130$ and 200 GeV. With the same set of parameters, the Buda-Lund model describes also the transverse momentum dependence of $v_2$ of identified particles at mid-rapidity. The results confirm the indication for quark deconfinement in Au+Au collisions at RHIC, obtained from a successful Buda-Lund hydro model fit to the single particle spectra and two-particle correlation data, as measured by the BRAHMS, PHOBOS, PHENIX and STAR collaborations.

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M. Csanad, T. Csorgo, B. Lorstad. 2004-03-22. Buda-Lund hydro model for ellipsoidally symmetric fireballs and the elliptic flow at RHIC. https://doi.org/10.1016/j.nuclphysa.2004.06.023

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