Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Space symmetry in light nuclei. II. SU(4) isospin--spin averages

Journal Article · · Nucl. Phys., A, v. A220, no. 2, pp. 349-366
OSTI ID:4327532
;
The validity of the Wigner supermultiplet scheme in the d-s shell is investigated for nuclei with neutron excess using the spectral distribution methods of French. Averages of the Hamiltonian H and H/sup 2/ over states belonging to a definite SU(4) symmetry, isospin and spin are used to determine ground state energies and low lying spectra of nuclei. Intensities of various irreducible representations of SU(4) near the ground state are evaluated and these provide a measure of symmetry breaking. It is found that the symmetry in nuclei with neutron excess is no worse than that for the lowest isospin ones. The results obtained are compared with the Franzini -Radicati mass formula. (auth)
Research Organization:
Physical Research Lab., Ahmedabad, India
NSA Number:
NSA-29-025493
OSTI ID:
4327532
Journal Information:
Nucl. Phys., A, v. A220, no. 2, pp. 349-366, Journal Name: Nucl. Phys., A, v. A220, no. 2, pp. 349-366; ISSN NUPAB
Country of Publication:
Country unknown/Code not available
Language:
English

Similar Records

Evaluation of the degree of restoration of broken Wigner's SU(4) spin-isospin symmetry in nuclei
Journal Article · Sat Jan 14 23:00:00 EST 2012 · Physics of Atomic Nuclei · OSTI ID:22043807
What does the Franzini-Radicati mass relationship imply about the Wigner supermultiplet symmetry
Journal Article · Mon Sep 29 00:00:00 EDT 1980 · Phys. Rev. Lett.; (United States) · OSTI ID:6937352
Spin-isospin SU(4) symmetry in [ital sd]- and [ital fp]-shell nuclei
Journal Article · Sun Jan 31 23:00:00 EST 1993 · Physical Review, C (Nuclear Physics); (United States) · OSTI ID:7177156

Related Subjects

*LIGHT NUCLEI-- SYMMETRY
BINDING ENERGY
DISTRIBUTION
GROUND STATES
HAMILTONIANS
IRREDUCIBLE REPRESENTATIONS
ISOSPIN
MASS FORMULAE
MIXING RATIO
N68232* --Physics (Nuclear
Theoretical)--Nuclear Properties & Reactions
A <= 5--Energy Levels & Transitions
N68332 --Physics (Nuclear
Theoretical)--Nuclear Properties & Reactions
6 <= A <= 19--Energy Levels & Transitions
N68432 --Physics (Nuclear
Theoretical)--Nuclear Properties & Reactions
20 <= A <= 38--Energy Levels & Transitions
N68532 --Physics (Nuclear
Theoretical)--Nuclear Properties & Reactions
39 <= A <= 58--Energy Levels & Transitions
SHELL MODELS
SPIN
SU-4 GROUPS
SUPERMULTIPLETS
SYMMETRY BREAKING