Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-12-23
Eur.Phys.J. A26 (2005) 277-284
Physics
High Energy Physics
High Energy Physics - Phenomenology
Revtex, 8 figures (included), 11 pages. This is the final version accepted for publication in Eur. Phys. J. A, only minor edit
Scientific paper
10.1140/epja/i2004-10307-2
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 $dN_{ch}/d\eta|_{mid}$.
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