Centrality dependence of thermal parameters deduced from hadron multiplicities in Au+Au collisions at √SNN =130 GeV -: art. no. 054901

We analyze the centrality dependence of thermal parameters deduced from hadron multiplicities in Au+Au collisions at root s(NN) = 130 GeV. Although the chemical freeze-out temperature and chemical potentials are found to be roughly centrality independent, the strangeness saturation factor gamma(S) increases with participant number toward unity, supporting the assumption of equilibrium freeze-out conditions in central collisions.