Nilsson-SU3 self-consistency in heavy N=Z nuclei
Author
Poves Paredes, AlfredoEntity
UAM. Departamento de Física TeóricaPublisher
American Physical SocietyDate
2015-08-26Citation
10.1103/PhysRevC.92.024320
Physical Review C 92.2 (2015): 024320
ISSN
0556-2813 (print); 1089-490X (online)DOI
10.1103/PhysRevC.92.024320Funded by
This work is partly supported by Spanish Grants No. FPA2011-29854 from MICINN and No. SEV-2012-0249 from MINECO, Centro de Excelencia Severo Ochoa ProgrammeProject
Gobierno de España. FPA2011-29854; Gobierno de España. SEV-2012-0249Editor's Version
http://dx.doi.org/10.1103/PhysRevC.92.024320Subjects
FísicaRights
© 2015 American Physical SocietyAbstract
It is argued that there exist natural shell-model spaces optimally adapted to the operation of two variants of Elliott's SU3 symmetry that provide accurate predictions of quadrupole moments of deformed states. A self-consistent Nilsson-like calculation describes the competition between the realistic quadrupole force and the central field, indicating a remarkable stability of the quadrupole moments - which remain close to their quasi- and pseudo-SU3 values - as the single-particle splittings increase. A detailed study of the N=Z even nuclei from Ni56 to Cd96 reveals that the region of prolate deformation is bounded by a pair of transitional nuclei Kr72 and Mo84 in which prolate ground-state bands are predicted to dominate, though coexisting with oblate ones
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