Abstract
Decay properties of the new neutron-deficient nuclide have been studied in the complete fusion reaction (,3n) at the velocity filter SHIP. Two isomeric states with half-lives of 88(6) ms and 11.5(6) ms, respectively, and with complex -decay schemes were identified in . The decay pattern of one of the isomers suggests that it is based on the oblate-deformed configuration, which confirms the expected onset of deformation in the At isotopes by approaching the neutron midshell at .
- Received 25 October 2005
DOI:https://doi.org/10.1103/PhysRevC.73.024317
©2006 American Physical Society