Beta Decay of Neutron-Rich Nuclei Near ⁶⁰Ca

Isotopes in the vicinity of the neutron dripline near ⁶⁰Ca are valuable for providing information on the dripline and the neutron-rich region near magic number Z = 20. These nuclei were produced at the National Superconducting Cyclotron Laboratory via fragmentation of a 140MeV/u ⁸²Se beam impinging on a ⁹Be target. The isotopes were separated in the A1900 and identified, event-by-event, by measuring energy loss and time-of-flight. They were then implanted in a double-sided silicon strip detector, with high and low gain outputs, to allow for investigation of the β-decay half-lives. Two high-purity germanium detectors were used to search for excited states in the daughter nuclei. Preliminary results will be reported.