Acta Physica Polonica B

Vol. 35, No. 1, January 2004, page 191


An Indication for Deconfinement in Au+Au Collisions at RHIC

M. Csanad, T. Csoergo, B. Loerstad, A. Ster

We present simultaneous, quality fits to final BRAHMS, PHOBOS, STAR and PHENIX data on particle spectra and two-particle Bose-Einstein or HBT correlations as measured in Au+Au collisions at \sqrt {sNN} = 130 GeV. Using the Buda-Lund hydro model, the best fit is achieved when the most central 1/8th of the particle emitting volume is superheated to T > Tc =170 MeV. In contrast, we find no indication for such a hot central region in a similar analysis of Pb+Pb data at CERN SPS.

PACS numbers: 24.10.Nz, 25.75.-q, 25.75.Nq, 25.75.Gz


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