Abstract
Neutron-rich has been reinvestigated by analyzing the large statistics and coincidence data from the spontaneous fission of at the Gammasphere detector array. Two new bands have been identified. The potential-energy surface calculations of this nucleus have been performed. The calculations show evidence for the configuration of the ground-state band and configuration for the 348-keV excited band, as assigned in previous work. The two bands newly established are proposed to be one- and two-phonon -vibrational bands built on the Nilsson orbital, respectively, in the current paper. Triaxial projected shell-model (TPSM) calculations have been performed to explain the level structure and are found in fair agreement with experimental data. In particular, the TPSM study confirms the - and -vibrational structure for the two observed excited band structures. Systematics of the one- and two-phonon -vibrational bands in the Mo series is also discussed.
1 More- Received 14 July 2017
- Revised 9 August 2017
DOI:https://doi.org/10.1103/PhysRevC.96.034319
©2017 American Physical Society