Structure of neutron-rich nuclei around the N = 50 shell-gap closure

The structure of neutron‐rich nuclei in the vicinity of 78Ni have been investigated via the β‐decay of 71,73,75Cu isotopes (ISOLDE, CERN). Experimental results have been compared with shell‐model calculations performed with the ANTOINE code using a large (2p3/21 f5/22 p1/21 g9/2) valence space and a 5628Ni28 core.