Critical point and Bose-Einstein condensation in pion matter
arXiv:2108.08140 · doi:10.1103/PhysRevC.104.055202
Abstract
The Bose-Einstein condensation and the liquid-gas first order phase transition are studied in the interacting pion matter. Two phenomenological models are used: the mean-field model and the hybrid model. Free model parameters are fixed by fitting the lattice QCD data on the pion Bose condensate density at zero temperature. In spite of some minor differences the two model demonstrate an identical qualitative and very close quantitative behavior for the thermodynamic functions and electric charge fluctuations. A peculiar property of the considered models is an intersection of the Bose-Einstein condensation line and the line of the first order phase transition at the critical end point.
11 pages, 7 figures
References in corpus (12)
- Probing freeze-out conditions in heavy ion collisions with moments of charge fluctuations
- Alpha-particle condensation in 16O via a full four-body OCM calculation
- Fluctuations in the quark-meson model for QCD with isospin chemical potential
- Pion and Kaon Condensation at Finite Temperature and Density
- Bose-Einstein condensation of pions in heavy-ion collisions at the CERN Large Hadron Collider (LHC) energies
- Bose-Einstein Condensation in the Relativistic Pion Gas: Thermodynamic Limit and Finite Size Effects
- Bose-Einstein Condensation of Pions in High Multiplicity Events
- Linear sigma model at finite density in the 1/N expansion to next-to-leading order
- Functional renormalization group at finite density and Bose condensation
- Quantum van der Waals and Walecka models of nuclear matter
- Bose-Einstein condensation phenomenology in systems with repulsive interactions
- Phase diagram of interacting pion matter and isospin charge fluctuations