Nuclear matter in the crystal soliton bag model
A model for nuclear matter is introduced as consisting of an infinite number of bags placed on a spatial cubic lattice. Using the soliton bag model of Friedberg and Lee in the self-consistent mean-field approximation we study the properties of the system as a function of the lattice constant. At low densities the hadronic matter is well described by the solutions of isolated nucleons. With decreasing lattice constant the energies of the quarks spread out into bands and the quark wave functions of different bags start to overlap. At a certain critical density an abrupt phase transition to a uniform quark distribution occurs. The model yields a critical density of the order of the normal nuclear density which shows that the model cannot adequately describe the repulsive part of the nucleon-nucleon interaction at small relative distances.
- Research Organization:
- Institut fuer Theoretische Physik der Justus-Liebig-Universitat, Giessen, West Germany
- OSTI ID:
- 6447157
- Journal Information:
- Phys. Rev. D; (United States), Vol. 32:9
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
NUCLEAR MATTER
BAG MODEL
SOLITONS
COUPLING CONSTANTS
CRYSTAL LATTICES
LAGRANGIAN FUNCTION
NUCLEON-NUCLEON INTERACTIONS
QUANTUM CHROMODYNAMICS
QUARK MATTER
WAVE FUNCTIONS
BARYON-BARYON INTERACTIONS
COMPOSITE MODELS
CRYSTAL STRUCTURE
EXTENDED PARTICLE MODEL
FIELD THEORIES
FUNCTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
MATHEMATICAL MODELS
MATTER
PARTICLE INTERACTIONS
PARTICLE MODELS
QUANTUM FIELD THEORY
QUARK MODEL
QUASI PARTICLES
645204* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties
645400 - High Energy Physics- Field Theory