Hadron production in Au–Au collisions at RHIC

2001/05/31 by P. Braun-Munzinger, P Braun-Munzinger, D Magestro +5 · 26 citations
Physics and Astronomy · #Dust and Plasma Wave Phenomena #High-Energy Particle Collisions Research #Magnetic confinement fusion research #hep-ph

paper · pdf · doi:10.1016/s0370-2693(01)01069-3

published as Phys.Lett. B518 (2001) 41-46 · Final version, minor changes to text and figures. To appear in Phys. Lett. B

arxiv created 2001/08/31 · openalex publication_date 2001/10/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We present an analysis of particle production yields measured in central Au-Au collisions at RHIC in the framework of the statistical thermal model. We demonstrate that the model extrapolated from previous analyses at SPS and AGS energy is in good agreement with the available experimental data at √ s=130 GeV implying a high degree of chemical equilibration. Performing a χ² fit to the data, the range of thermal parameters at chemical freezeout is determined. At present, the best agreement of the model and the data is obtained with the baryon chemical potential μ_B≃ 46± 5 MeV and temperature T≃ 174± 7 MeV. More ratios, such as multistrange baryon to meson, would be required to further constrain the chemical freezeout conditions. Extrapolating thermal parameters to higher energy, the predictions of the model for particle production in Au-Au reactions at √ s=200 GeV are also given.

Citations

• Particle ratios at SPS, AGS and SIS
• The Little Bang: searching for quark–gluon matter in relativistic heavy-ion collisions
• Statistical model description of K+ and K− production between 1–10 A·GeV

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