Approximate particle number projection for finite range density dependent forces
- Departamento de Fisica Teorica C-XI, Universidad Autonoma de Madrid, E--28049 Madrid (Spain)
The Lipkin-Nogami method is generalized to deal with finite range density dependent forces. New expressions are derived and realistic calculations with the Gogny force are performed for the nuclei {sup 164}Er and {sup 168}Er. The sharp phase transition predicted by the mean field approximation is washed out by the Lipkin-Nogami approach. A much better agreement with the experimental data is reached with the new approach than with the Hartree-Fock-Bogoliubov one, especially at high spins. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 277400
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 1 Vol. 53; ISSN PRVCAN; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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