Pseudospin symmetry in Zr and Sn isotopes from the proton drip line to the neutron drip line
Open Access
- 1 January 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 59 (1), 154-163
- https://doi.org/10.1103/physrevc.59.154
Abstract
Based on the relativistic continuum Hartree-Bogoliubov theory, the pseudospin approximation in exotic nuclei is investigated in Zr and Sn isotopes from the proton drip line to the neutron drip line. The quality of the pseudospin approximation is shown to be connected to the competition between the pseudocentrifugal barrier and the pseudospin orbital potential (PSOP). The PSOP depends on the derivative of the difference between the scalar and vector potentials If the pseudospin symmetry is exact. The pseudospin symmetry is found to be a good approximation for normal nuclei and to become much better for exotic nuclei with a highly diffuse potential, which have The energy splitting of the pseudospin partners is smaller for orbitals near the Fermi surface (even in the continuum) than the deeply bound orbitals. The lower components of the Dirac wave functions for the pseudospin partners are very similar and almost equal in magnitude.
Keywords
This publication has 26 references indexed in Scilit:
- On the validity of the pseudo-spin concept for triaxially deformed nucleiNuclear Physics A, 1997
- Pseudospin and nuclear deformationNuclear Physics A, 1997
- Pseudospin symmetry in nuclear physicsPhysical Review Letters, 1992
- Transformation to pseudo-SU (3) in heavy deformed nucleiPhysics Letters B, 1992
- Spin determination and quantized alignment in the superdeformed bands in,, andPhysical Review C, 1991
- Some themes in the study of very deformed rotating nucleiNuclear Physics A, 1991
- Towards a shell model description of the low-energy structure of deformed nuclei I. Even-even systemsAnnals of Physics, 1984
- Search for a coupling scheme in heavy deformed nuclei: The pseudo SU(3) modelNuclear Physics A, 1973
- Pseudo LS coupling and pseudo SU3 coupling schemesPhysics Letters B, 1969
- Generalized seniority for favored J ≠ 0 pairs in mixed configurationsNuclear Physics A, 1969