Published November 29, 1982
| Version v1
Journal article
Derivation and test of accuracy of an IBM-like hamiltonian for a model with SO(5)xSO(5) symmetry
Description
An interacting boson model (IBM) type of hamiltonian is derived from a model which simulates (in two dimensions) a two-level shell model with quadrupole and pairing interactions and carries the symmetry SO(5) x SO(5). This derivation is based upon a variational method for the trace of the hamiltonian designed to decouple collective from non-collective degrees of freedom. The results for such an IBM are compared with the results of exact diagonalizations. A conjecture is made that the actual IBM may be related to a hybrid of boson mappings rather than to one definite mapping. (orig.)
Additional details
Publishing Information
- Journal Title
- Nucl. Phys., A
- Journal Volume
- 390
- Journal Issue
- 1
- Series
- Nucl. Phys., A.
- Journal Page Range
- 1-18
- ISSN
- 0375-9474
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 14735850
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- EIGENSTATES; ENERGY LEVELS; HAMILTONIANS; INTERACTING BOSON MODEL; PAIRING INTERACTIONS; SO GROUPS; TWO-DIMENSIONAL CALCULATIONS; VARIATIONAL METHODS
- Descriptors DEC
- INTERACTIONS; LIE GROUPS; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; NUCLEAR MODELS; QUANTUM OPERATORS; SHELL MODELS; SYMMETRY GROUPS