Quantum hadrodynamic and nuclear matter
The properties of infinite nuclear matter are studied in the model relativistic quantum field theory of Walecka. Neutral scalar and vector meson exchange reproduces the basic Lorentz structure of the observed nucleon-nucleon interaction, and the consequences of this structure are studied in detail. In the mean-field approximation, nuclear saturation involves a cancellation between large attractive and repulsive components in the average potential energy. The attractive scalar field decreases the nucleon mass significantly, and the strong vector repulsion implies a stiff high-density equation of state. Corrections to the mean-field approach arising from vacuum fluctuations, self-consistent nucleon exchange, and two-nucleon correlations are examined. These have a small effect on the condensed meson fields but may produce significant changes in the binding energy. Corrections to the mean-field equation of state are small at high density.
- Research Organization:
- Physics Department of Nuclear Theory Center, Indiana University, Bloomington, IN 47405
- OSTI ID:
- 5646869
- Report Number(s):
- CONF-8405193-
- Journal Information:
- AIP Conf. Proc.; (United States), Journal Name: AIP Conf. Proc.; (United States) Vol. 123:1; ISSN APCPC
- Country of Publication:
- United States
- Language:
- English
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON-BARYON INTERACTIONS
BOSON-EXCHANGE MODELS
BOSONS
ELEMENTARY PARTICLES
EQUATIONS
EQUATIONS OF STATE
FIELD THEORIES
GENERAL RELATIVITY THEORY
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MANY-BODY PROBLEM
MATHEMATICAL MODELS
MATTER
MEAN-FIELD THEORY
MESONS
NUCLEAR MATTER
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PERIPHERAL MODELS
QUANTUM FIELD THEORY
RELATIVITY THEORY