Abstract
The first postulation of excited states in neutron-rich is presented. We postulate the levels in to be populated by high- and low-spin isomers of with half-lives of 0.57 s and 1.27 s, respectively. Of 12 γ rays attributed to decay, 11 are placed in a level scheme for with eight excited states up to 3 MeV. A shell-model calculation has been carried out to reproduce the systematics of the neutron-rich Zn isotopes up to A=76. The model space involves active protons in orbitals between Z=28 and 50 and neutrons in orbitals filling the subshell between N=38 and 50.
- Received 13 December 1989
DOI:https://doi.org/10.1103/PhysRevC.42.954
©1990 American Physical Society