Chiral model for dense, hot and strange hadronic matter

Abstract

An extended chiral SU(3) model is applied to the description of dense, hot and strange hadronic matter. The degrees of freedom are the baryon octet and decuplet and the spin-0 and spin-1 meson multiplets. The parameters of the model are fitted to the hadron masses in vacumm, infinite nuclear matter properties and soft pion theorems. At high densities the appearance of density isomers cannot be ruled out and extrapolation to finite temperature exhibits a first order phase transition at $T\approx 150MeV$. The predicted dropping baryon masses lead to drastically changed particle ratios compared to ideal gas calculations.

4 pages, 3 figures, Contribution to the Proceedings of the 15th Particles and Nuclei International Conference (PANIC 99), Uppsala, Sweden, June 10-16, 1999

References in corpus (5)

• Recent Progress in Quantum Hadrodynamics
• Thermal and Hadrochemical Equilibration in Nucleus-Nucleus Collisions at the SPS
• Nuclei in a chiral SU(3) model
• Chiral Lagrangian for strange hadronic matter
• An Effective Lagrangian with Broken Scale and Chiral Symmetry Applied to Nuclear Matter and Finite Nuclei

Cited by in corpus (6)

• Dynamics of Hot Bulk QCD Matter: from the Quark-Gluon Plasma to Hadronic Freeze-Out
• Space-time evolution and HBT analysis of relativistic heavy ion collisions in a chiral SU(3) x SU(3) model
• Statistical Coalescence Model Analysis of J/psi Production in Pb+Pb Collisions at 158 A GeV
• Enhanced Strange Particle Yields - Signal of a Phase of Massless Particles ?
• Warm strange hadronic matter in an effective model with a weak Y-Y interaction
• Impact of baryon resonances on the chiral phase transition at finite temperature and density