An experiment was performed at the National Superconducting Cyclotron Laboratory at Michigan State University to investigate β- and isomer decay properties of several isotopes in the vicinity of 78Ni. The identification of an (8+) isomer in 76Ni was confirmed and its deexcitation cascade identified; the β-decay of 71–73Co was reinvestigated and that of 74Co studied for the first time. First evidence of β-delayed neutron emission in neutron-rich cobalt isotopes was also obtained. Preliminary results are reported.
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