Observation of new h9/2 and h11/2 bands in 187T1
1 Department of Nuclear Physics, The Australian National University, ACT 0200, Australia
2 Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
3 School of Physics, Peking University, 100871, China
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The unfavoured signature of the rotation-aligned band associated with the prolate h9/2 structure in 187T1 has been identified. The deformation-aligned 11/2− band is also confirmed and extended. While the alignment properties of the 11/2− band seem to indicate that it has a similar magnitude of deformation as the prolate 186Hg core, the signature splitting at low spin, taken together with new self-consistent calculations, suggest that it may actually be triaxial with γ ≈ −180 near the bandhead.
© Owned by the authors, published by EDP Sciences, 2012