Abstract
The -decay properties of several neutron-rich germanium and arsenic isotopes were measured at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory. The measurements of almost-pure radioactive sources were enabled by the combination of ion-source chemistry and two-stage mass separation. The half-life of Ge ( ms) was determined for the first time, while those of Ge and As were remeasured. The results are compared to theoretical predictions of the gross theory of decay, the finite-range droplet model, and the new calculations using the energy density functional DF3a with continuum quasiparticle random-phase approximation (CQRPA). We confirm the robustness and good predictive power of the latter model for nuclei near closed shells. These DF3a+CQRPA calculations were used recently to analyze -process isobaric abundances.
- Received 16 November 2012
DOI:https://doi.org/10.1103/PhysRevC.87.034315
©2013 American Physical Society