A hint at quark deconfinement in 200 GeV Au+Au data at RHIC

Abstract

We give the emission function of the axially symmetric Buda-Lund hydro model and present its simultaneous, high quality fits to identified particle spectra, two-particle Bose-Einstein or HBT correlations and charged particle pseudorapidity distributions as measured by BRAHMS and PHENIX in 0-30 % central, $\sqrt{s_{\text{NN}}}=200$ GeV Au+Au collisions at RHIC. The best fit is achieved when the most central region of the particle emitting volume is superheated to $T_0=200\pm 9$ MeV $\ge T_c=172\pm 3$ MeV, a preliminary, 3 $\sigma$ effect.

Comments: 10 pages, 3 figures, talk of A. Ster at the 2nd Warsaw Meeting on Correlations and Resonances in HIC, see http://hirg.if.pw.edu.pl/en/meeting/oct2003/talks/csorgo/Ster.ppt