Spectra,elliptic flow and azimuthally sensitive HBT radii from the Buda-Lund model for $ \sqrt{{s_{NN}}}$ = 200 GeV Au + Au collisions |
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Authors: | A Ster M Csanád T Csörg? B Lörstad B Tomá?ik |
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Institution: | 1.MTA KFKI RMKI,Budapest,Hungary;2.Department of High Energy Physics,University of Lund,Lund,Sweden;3.E?tv?s University,Budapest,Hungary;4.Department of Physics,Harvard University,Cambridge,USA;5.Univerzita Mateja Bela,Banská Bystrica,Slovakia;6.FNSPE,Czech Technical University in Prague,Prague,Czech Republic |
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Abstract: | We present calculations of elliptic flow and azimuthal dependence of correlation radii in the ellipsoidally symmetric generalization
of the Buda-Lund hydrodynamic model of hadron production in high-energy nuclear collisions. We compare them to data from RHIC
by simultaneous fits to azimuthally integrated invariant spectra of pions, kaons and protons-antiprotons measured by PHENIX
in Au + Au reactions at center-of-mass energy of 200 AGeV. STAR data were used for azimuthally sensitive two-particle correlation
function radii and for the transverse momentum dependence of the elliptic flow parameter v
2. We have found that the transverse flow is faster in the reaction plane than out of plane, which results in a reaction zone
that gets slightly more elongated in-plane than out of plane. The model parameters extracted from the fits are shown and discussed. |
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