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

Abstract

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 $d{N}_{ch}/d\eta {|}_{mid}$.

arXiv commentRevtex, 8 figures (included), 11 pages. This is the final version accepted for publication in Eur. Phys. J. A, only minor editorial changes are made

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• Machine Learning model driven prediction of the initial geometry in Heavy-Ion Collision experiments
• Centrality dependence of global variables in relativistic heavy ion collisions: Final $p_T$ data analysis in the framework of a statistical model
• Transverse Energy per Charged Particle in Heavy-Ion Collisions: Role of Collective Flow
• Transverse energy and charged particle multiplicity at various centralities at RHIC: Statistical model estimates