Abstract
The half-lives of the 9/2, 13/2, and 15/2 yrast states in the neutron-rich nucleus were determined by using the in-beam fast-timing technique. The experimentally deduced E3 transition strength for the decay of the 9/2 level to the 3/2 ground state indicates that the wave function of this level might contain a collective component arising from the coupling of the odd proton with the 3 state in . Theoretical interpretations of the 9/2 state are presented within the particle-vibration weak-coupling scheme involving the unpaired proton and the 3 state from and within shell-model calculations with a core using the jj44b residual interaction. The shell model also accounts reasonably well for the other measured electromagnetic transition probabilities.
- Received 16 September 2013
- Revised 30 April 2014
DOI:https://doi.org/10.1103/PhysRevC.89.064314
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