Abstract
Excited states of neutron-rich nucleus Ge were studied from the spontaneous fission of Cf. Eleven new transitions and seven new levels in Ge were identified by using (Dy)-- and -- triple coincidences. Possible excited deformed rotational bands are observed, for the first time, in this nuclear region. Coexistence of the spherical ground and deformed excited shapes is proposed in Ge. These deformed rotational bands can be formed by two-particle, two-hole excitations with the 0 pairing energy states of the configuration across the closed shell.
- Received 26 April 2011
DOI:https://doi.org/10.1103/PhysRevC.84.024305
©2011 American Physical Society