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Phys. Rev. C 63, 034312 (2001) [13 pages]

g factors of the first 2+ states in the transitional 92,94,96,98,100Mo isotopes and the onset of collectivity

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P. F. Mantica1,2, A. E. Stuchbery3, D. E. Groh1,2, J. I. Prisciandaro1,2, and M. P. Robinson3
1National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824
2Department of Chemistry, Michigan State University, East Lansing, Michigan 48824
3Department of Nuclear Physics, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia

Received 3 October 2000; published 20 February 2001

The g factors of the 21+ states of the stable, even-even Mo isotopes 92,94,96,98,100Mo were measured using the transient field method. While 92Mo50 has a g factor consistent with that of the πg9/22 configuration, the g factor of 94Mo is about 60% of the hydrodynamic model value, Z/A. As further pairs of neutrons are added, the heavier isotopes 96,98,100Mo show a monotonic increase in g(2+) to values that exceed Z/A for 98Mo and 100Mo. The systematic behavior of the g(21+) values for the Mo isotopes, as one moves away from the neutron shell closure at N=50, is compared with the shell model, a collective model with pairing corrections and IBM-2 calculations.


©2001 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.63.034312
DOI: 10.1103/PhysRevC.63.034312
PACS: 21.10.Ky, 21.60.Cs, 23.20.En, 27.60.+j

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