NUKLEONIKA 2004, 49(Supplement 2):s49-s55

A HINT AT QUARK DECONFINEMENT IN 200 GeV Au+Au DATA AT RHIC

Máté Csanád1, Tamás Csörgő2, Bengt Lörstad3, András Ster2

1 Department of Atomic Physics, ELTE, Pázmány P. 1/a, H-1117 Budapest, Hungary,
2 Research Institute for Particle Physics of the Hungarian Academy of Sciences (MTA KFKI RMKI), H-1525 Budapest 114, P. O. Box 49, Hungary,
3 Department of Physics, University of Lund, S-22362 Lund, Sweden

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, ÖsNN = 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 T0 = 200 ± 9 MeV ł Tc = 172 ± 3 MeV, a 3s effect.