Thermodynamics of dense hadronic matter in a parity doublet model

Journal Article · Wed Sep 15 04:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.035204· OSTI ID:21419556

Sasaki, Chihiro ^[1]; Mishustin, Igor ^[1]

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1. Frankfurt Institute for Advanced Studies, D-60438 Frankfurt am Main (Germany)

We study thermodynamics of nuclear matter in a two-flavored parity doublet model within the mean-field approximation. Parameters of the model are chosen to reproduce correctly the properties of the nuclear ground state. The model predicts two phase transitions in nuclear matter, a liquid-gas phase transition at normal nuclear density and a chiral transition at higher density. At finite temperature the pion decay constant exhibits a considerable reduction at intermediate values of chemical potential, which is traced back to the presence of the liquid-gas transition, and approaches zero at higher chemical potential associated with the chiral symmetry restoration. A 'transition' from meson-rich to baryon-rich matter is also discussed.

• OSTI ID: 21419556
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 82; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
APPROXIMATIONS
BARYONS
BOSONS
CALCULATION METHODS
CHIRAL SYMMETRY
CHIRALITY
DECAY
DENSITY
ELEMENTARY PARTICLES
ENERGY LEVELS
FERMIONS
FLUIDS
GROUND STATES
HADRONS
LIQUIDS
MATTER
MEAN-FIELD THEORY
MESONS
NUCLEAR MATTER
PARITY
PARTICLE DECAY
PARTICLE PROPERTIES
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PIONS
PSEUDOSCALAR MESONS
SYMMETRY
THERMODYNAMICS