The transverse energy and the charged particle multiplicity in a statistical model with expansion

Abstract

Global variables such as the transverse energy and the charged particle multiplicity and their ratio are evaluated, in a statistical model with expansion, for heavy-ion collisions from AGS to RHIC at $\sqrt{s_{NN}}=200$ GeV. Full description of decays of hadron resonances is applied. The predictions of the model done at the freeze-out parameters established independently from observed particle yields and $p_T$ spectra agree well with the experimental data. However, some (explicable) overestimation of the ratio has been found.

Comments: Revtex, 1 figure (included), 6 pages, Talk given at the XLIV Cracow School of Theoretical Physics "New results in particle physics", Zakopane, Poland, May 28-June 6, 2004. To be published in proceedings, Acta Physica Polonica B, December 2004