The centrality dependence of transverse energy and charged particle multiplicity at RHIC: Statistical model analysis

The transverse energy and charged particle multiplicity at midrapidity and their ratio are evaluated in a statistical model with the longitudinal and transverse flows for different centrality bins at RHIC at $\sqrt{s_{NN}}=130$ and 200 GeV. Full description of decays of hadron resonances is applied in these estimations. The predictions of the model at the freeze-out parameters, which were determined independently from measured particle yields and $p_{T}$ spectra, agree qualitatively well with the experimental data. The observed overestimation of the ratio can be explained for more central collisions by the redefinition of $dN_{ch}/d\eta|_{mid}$.Comment: Revtex, 8 figures (included), 11 pages. This is the final version accepted for publication in Eur. Phys. J. A, only minor editorial changes are mad

Transverse energy and charged particle multiplicity at various centralities at RHIC: Statistical model estimates

The transverse energy and the charged particle multiplicity at midrapidity are evaluated in a single-freeze-out model for different centrality bins at RHIC at $\sqrt{s_{NN}}=130$ and 200 GeV. The predictions of the model are done at the freeze-out parameters determined earlier from measured particle yields and $p_{T}$ spectra. The results agree qualitatively well with the experimental data.Comment: This is a write-up of a poster presented at the Workshop on Quark-Gluon-Plasma Thermalization, Vienna, Austria, 10-12 August 200