Transverse energy per charged particle at relativistic energies from a statistical model with expansion

Abstract

Transverse energy and charged particle pseudorapidity densities at midrapidity and their ratio, $d{E}_T/d\eta {\mid }_{mid}/d{N}_{ch}/d\eta {|}_{mid}$, are evaluated in a statistical model with longitudinal and transverse flows for the wide range of colliders, from AGS to RHIC at $\sqrt{s_{NN}}=200$ GeV. Evaluations are done at freeze-out parameters established independently from fits to observed particle yields and $p_T$ spectra. Decays of hadron resonances are treated thoroughly and are included in derivations of $d{E}_T/d\eta {|}_{mid}$ and $d{N}_{ch}/d\eta {|}_{mid}$. The predictions of the model agree well with the experimental data. However, some (explicable) overestimation of the ratio has been observed.

Revtex, 11 pages, 1 figure (included), The revised version with the title changed and new conclusions added, to appear in Eur. Phys. J. A

References in corpus (4)

• Identified Charged Particle Spectra and Yields in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Description of the particle ratios and transverse-momentum spectra for various centralities at RHIC in a single-freeze-out model
• Charge Particle Multiplicity and Transverse Energy Measurements in Au-Au collisions in PHENIX at RHIC
• Analysis of the freeze-out parameters for RHIC, SPS and AGS based on $\frac{d{E}_T}{d\eta }/\frac{d{N}_{ch}}{d\eta }$ ratio measurements

Cited by in corpus (8)

• Transverse Energy per Charged Particle and Freeze-Out Criteria in Heavy-Ion Collisions
• The statistical hadronization model approach to $\sqrt{s_{NN}}=200$ GeV Au-Au collisions: $p_T$-spectra fits and global variable predictions
• The centrality dependence of transverse energy and charged particle multiplicity at RHIC: Statistical model analysis
• Saturation of $E_T/N_{ch}$ and Freeze-Out Criteria in Heavy-Ion Collisions
• Centrality dependence of global variables in relativistic heavy ion collisions: Final $p_T$ data analysis in the framework of a statistical model
• Universal Freezeout Condition for Charged Hadrons in a Hybrid Approach
• 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