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Phys. Rev. C 68, 054304 (2003) [9 pages]

Systematics of first 2+ state g factors around mass 80

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T. J. Mertzimekis and A. E. Stuchbery *
National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA

N. Benczer-Koller and M. J. Taylor †
Department of Physics and Astronomy, Rutgers University, New Brunswick, New Jersey 08903, USA

Received 8 May 2003; published 11 November 2003

The systematics of the first 2+ state g factors in the mass 80 region are investigated in terms of an IBM-II analysis, a pairing-corrected geometrical model, and a shell-model approach. Subshell closure effects at N=38 and overall trends were examined using IBM-II. A large-space shell-model calculation was successful in describing the behavior for N=48 and N=50 nuclei, where single-particle features are prominent. A schematic truncated-space calculation was applied to the lighter isotopes. The variations of the effective boson g factors are discussed in connection with the role of F -spin breaking, and comparisons are made between the mass 80 and mass 180 regions.


©2003 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.68.054304
DOI: 10.1103/PhysRevC.68.054304
PACS: 21.10.Ky, 21.60.Cs, 21.60.Fw, 27.50.+e

* Permanent address: Department of Nuclear Physics, Australian National University, Canberra ACT 0200, Australia.
† Present address: School of Engineering, University of Brighton, Brighton BN2 4GJ, UK

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