(h{sub 11/2},g{sub 7/2}){sub 9{sup -}} neutron excitation in {sup 92,94,96}Sr
- Faculty of Physics, University of Warsaw, ul. Hoza 69, PL-00-681 Warsaw (Poland)
- GSI-Helmholtzzentrum fuer Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt (Germany)
- Institute Pluridisciplinaire Hubert Curien, 23 rue du Loess, F-67037 Strasbourg Cedex (France)
- Department of Physics and Astronomy, University of Manchester, M13 9PL Manchester (United Kingdom)
- Argonne National Laboratory, Argonne, Illinois 60439 (United States)
Medium-spin structure of neutron rich nuclei {sup 92}Sr, {sup 94}Sr, and {sup 96}Sr have been studied in spontaneous fission of {sup 248}Cm. New spin and parity assignments done in this work differ significantly from those reported in other works. The 9{sup -} excitations, involving the {nu}(g{sub 7/2}h{sub 11/2}){sub 9{sup -}} maximum aligned configuration, were proposed in the three nuclei at 4930.2 keV, 4858.6 keV, and 3523.9 keV, respectively. Shell-model calculations, with the {sup 78}Ni core, support the proposed nature of the 9{sup -} excitations. The new data allow testing the single-particle energies in the region of {sup 78}Ni, and in particular, the position of the {nu}h{sub 11/2} orbital, which was not uniquely determined to date.
- OSTI ID:
- 21199554
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 79, Issue 2; Other Information: DOI: 10.1103/PhysRevC.79.024319; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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