Spin-tensor analysis of realistic shell model interactions

Journal Article · Sat Feb 01 04:00:00 EST 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.45.662· OSTI ID:7277401

Osnes, E ^[1]; Strottman, D ^[2]

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1. Department of Physics, University of Oslo, Blindern, Oslo 3 (Norway)
2. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

In this paper various realistic shell model effective interactions are analyzed in terms of their central, vector, and tensor components. The effective forces were obtained from phenomenological (Hamada-Johnston) as well as from modern meson-exchange (Bonn-Juelich and Paris) nucleon-nucleon potentials and were calculated to various approximations within the framework of perturbation theory. For all forces examined, the dominant contribution comes from the central part. The vector component is small for the bare {ital G}-matrix interaction, especially for {ital T}=0, but is considerably modified by renormalization. The tensor component is somewhat larger than the vector component and is relatively larger for the Hamada-Johnston potential than for the Bonn-Juelich and Paris potentials. Centroids in {ital j}-{ital j} and SU(3) coupling were obtained with and without noncentral contributions; considerable sensitivity was observed in the SU(3) basis.

• OSTI ID: 7277401
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 45:2; ISSN 0556-2813; ISSN PRVCA
• 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
BARYON-BARYON INTERACTIONS
CHARGED-PARTICLE REACTIONS
COMPARATIVE EVALUATIONS
COUPLING
EVALUATION
G MATRIX
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
INTERMEDIATE COUPLING
J-J COUPLING
LIE GROUPS
MATHEMATICAL MODELS
MATRICES
MESON REACTIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEON-NUCLEON INTERACTIONS
NUCLEON-NUCLEON POTENTIAL
PARTICLE INTERACTIONS
POTENTIALS
SHELL MODELS
SU GROUPS
SU-3 GROUPS
SU-4 GROUPS
SYMMETRY GROUPS
TENSOR FORCES