Dirac effects in the Hartree-Fock description of finite nuclei employing realistic forces

Journal Article · Mon Jul 05 04:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.46· OSTI ID:6329998

Fritz, R; Muether, H ^[1]; Machleidt, R ^[2]

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1. Institut fuer Theoretische Physik der Universitaet Tuebingen, D-7400 Tuebingen (Germany)
2. Department of Physics, University of Idaho, Moscow, Idaho 83843 (United States)

We discuss two different approximation schemes for the self-consistent solution of the [ital relativistic] Brueckner-Hartree-Fock equation for finite nuclei. The results obtained by the two methods are very similar. Employing a realistic one-boson-exhange potential (Bonn A), the predictions for energies and radii of [sup 16]O and [sup 40]Ca come out in substantially better agreement with experiment as compared to nonrelativistic approaches. As a by-product of our study, it turns out that the Fock exchange terms, ignored in a previous investigation, are not negligible.

• OSTI ID: 6329998
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:1; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663120* -- Nuclear Structure Models & Methods-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
BARYON-BARYON INTERACTIONS
BOSON-EXCHANGE MODELS
CALCIUM 40
CALCIUM ISOTOPES
CALCULATION METHODS
ENERGY
EVEN-EVEN NUCLEI
G MATRIX
HADRON-HADRON INTERACTIONS
HARTREE-FOCK METHOD
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MATRICES
NUCLEI
NUCLEON-NUCLEON INTERACTIONS
OBE MODEL
OXYGEN 16
OXYGEN ISOTOPES
PARTICLE INTERACTIONS
PARTICLE MODELS
PERIPHERAL MODELS
SELF-CONSISTENT FIELD
STABLE ISOTOPES