Abstract
Gamma rays from excited states feeding a proton-emitting isomeric-state in have been observed for the first time. Comparison with state-of-the-art nonadiabatic quasiparticle calculations indicates an oblately deformed, proton-emitting state with a quadrupole deformation of . The calculations suggest an increase in quadrupole deformation, to , with increasing spin which is understood in terms of the mixing of Nilsson states at the Fermi surface. It is also shown that the proton decay half-life is consistent with that from a state with a quadrupole deformation of .
1 More- Received 14 November 2014
- Revised 22 January 2015
DOI:https://doi.org/10.1103/PhysRevC.91.044322
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