Shape coexistence in the odd-odd neutron-rich nucleus Y98 studied in the interacting boson model

S. Brant, G. Lhersonneau, and K. Sistemich
Phys. Rev. C 69, 034327 – Published 24 March 2004

Abstract

The available data on levels in Y98 have been reevaluated and interpreted using recently published information on band structure in this region. A calculation in the interacting boson model framework suggests that the 1182keV 0.8μs isomer is a spherical 10 state with the πg92νh112 configuration. This assignment implies that the 8.0μs bandhead at 496keV is a Iπ=4 state, with the highly probable π[422]52ν[541]32 configuration. The level structure of Y98 is well reproduced by coupling the levels of its both spherical and deformed odd-A neighbors and the origin of the isomeric states is understood.

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  • Received 16 September 2003

DOI:https://doi.org/10.1103/PhysRevC.69.034327

©2004 American Physical Society

Authors & Affiliations

S. Brant

  • Department of Physics, Faculty of Science, University of Zagreb, Bijenička 32, 10000 Zagreb, Croatia

G. Lhersonneau

  • Laboratori Nazionali di Legnaro, Viale dell’Università 2, 35020 Legnaro, Italy

K. Sistemich

  • Institut für Kernphysik, Forschungszentrum Jülich, 52425 Jülich, Germany

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Vol. 69, Iss. 3 — March 2004

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