Transverse Energy per Charged Particle and Freeze-Out Criteria in Heavy-Ion Collisions

Abstract

In relativistic nucleus-nucleus collisions the transverse energy per charged particle, E_T/N_ch, increases rapidly with beam energy and remains approximately constant at about 800 MeV for beam energies from SPS to RHIC. It is shown that the hadron resonance gas model describes the energy dependence, as well as the lack of centrality dependence, qualitatively. The values of E_T/N_ch are related to the chemical freeze-out criterium E/N about 1 GeV valid for primordial hadrons.

8 pages, 5 figures

References in corpus (2)

• The statistical hadronization model approach to $\sqrt{s_{NN}}=200$ GeV Au-Au collisions: $p_T$-spectra fits and global variable predictions
• 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

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• Charged Particle and Photon Multiplicity, and Transverse Energy Production in High-Energy Heavy-Ion Collisions
• Saturation of $E_T/N_{ch}$ and Freeze-Out Criteria in Heavy-Ion Collisions
• Pseudorapidity density, transverse momentum spectra, and elliptic flow studies in Xe-Xe collision systems at $\sqrt{{\mathrm{s}}_{\mathrm{NN}}}=5.44TeV$ using the HYDJET++ model
• Transverse momentum spectra and suppression of charged hadrons in deformed Xe-Xe collisions at $\sqrt{s_{NN}}$ = 5.44 TeV using HYDJET++ model