Systematic Study of β-Decay Half-Lives in the Vicinity of 78Ni

An experiment aiming at study of decay spectroscopy around ^78Ni has been performed at the RIBF facility, RIKEN, in the winter of 2012. The β-decay half-lives of ^72–73Co, ^75–76Ni, ^78Cu, ^80–81Zn, and ^83Ga, which were produced by the in-flight fission of ^238U on a ^9Be target, were deduced with good agreements with literature values of available.