Abstract
We report on the first measurement of the absolute transition strength in the self-conjugate nucleus . It is found that the transition displays a strength similar to that for the triaxial nucleus, in sharp contrast to the much stronger collectivity observed for the oblate nucleus. Shape evolution along the line from zinc to strontium is analyzed through beyond-mean-field calculations using the D1S force. Over this narrow mass region the nuclear structure shows clear-cut transition from prolate to oblate and back to prolate, with standing as pivotal between triaxial and oblate deformations.
- Received 17 July 2009
DOI:https://doi.org/10.1103/PhysRevC.80.031304
©2009 American Physical Society