Abstract
The neutron-rich cobalt isotopes up to have been studied through multinucleon transfer reactions by bombarding a U target with a 460-MeV Zn beam. Unambiguous identification of prompt rays belonging to each nucleus has been achieved using coincidence relationships with the ions detected in a high-acceptance magnetic spectrometer. The new data are discussed in terms of the systematics of the cobalt isotopes and interpreted with large-scale shell-model calculations in the model space. In particular, very different shapes can be described in Co, at the edge of the island of inversion at , where a low-lying highly deformed band coexists with a spherical structure.
4 More- Received 28 March 2012
DOI:https://doi.org/10.1103/PhysRevC.85.064305
©2012 American Physical Society