Journal
PHYSICS LETTERS B
Volume 750, Issue -, Pages 225-229Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2015.09.019
Keywords
Isomers; Shape evolution; Oblate; Collectivity; Rotation alignment
Funding
- Board of Research in Nuclear Sciences, India
- University Grants Commission, India
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-FG02-94ER40848, DE-FG02-94ER40834, DE-AC02-06CH11357]
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Rotation-aligned isomeric states and associated oblate collective sequences are established in even Pt isotopes. Reduced E2 transition probabilities for the deexcitation of the 12(+) isomers indicate an abrupt and unexpected quenching of oblate collectivity around neutron number N = 120. Structure and shape evolution at high spin in the heaviest stable isotopes is found to be markedly different from observations in the lighter ones. (C) 2015 The Authors. Published by Elsevier B.V.
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