Thermal and hadrochemical equilibration in nucleus-nucleus collisions at the SPS

1995/08/31 by P. Braun-Munzinger, J. Stachel, J. P. Wessels +2 · 9 citations
Materials Science · Physics and Astronomy · #Atmospheric temperature range #Dust and Plasma Wave Phenomena #Hadron #High-Energy Particle Collisions Research #Material Dynamics and Properties #Phase (matter) #Phase boundary #Range (aeronautics) #Spectral line #Thermal #Transverse plane #nucl-th

paper · pdf · doi:10.1016/0370-2693(95)01258-3

published as Phys.Lett. B365 (1996) 1-6 · 14 pages + 3 figures. Paper replaced with version accepted for publication in Phys. Lett. B

arxiv created 1995/10/03 · openalex publication_date 1996/01/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The currently available set of hadron abundances at the SPS for central S+Au(W,Pb) collisions is compared to predictions from a scenario assuming local thermal and hadrochemical equilibrium. The data are consistent with a freeze-out temperature T = 160-170 MeV. Spectra are consistent with this temperature range and a moderate transverse expansion. The freeze-out points at the AGS and SPS are found to be close to the phase boundary between a hadron gas and an ideal quark-gluon phase.

Citations

• Hydrodynamical assessment of 200AGeV collisions
• Hot hadronic matter and strange anti-baryons
• Thermal equilibration and expansion in nucleus-nucleus collisions at the AGS

Cited by

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• Crossover transition in bag-like models
• Pion and kaon production in centralPb+Pbcollisions at20Aand30AGeV: Evidence for the onset of deconfinement
• Microscopic coloured quark dynamics in the soft non-perturbative regime - description of hadron formation in relativistic S + Au collisions at CERN
• Particle production and chemical freezeout from the hybrid UrQMD approach at NICA energies
• Particle ratios and the QCD critical temperature