Abstract
The β decays of the proton-rich, Tz = −2 nuclei 48Fe, 52Ni and 56Zn were investigated by decay spectroscopy at GANIL. The decay schemes were determined, together with absolute Fermi and Gamow-Teller transition strengths. New interesting results were obtained, including the first observation of a new decay mode in the f p-shell, the exotic β- delayed γ-proton decay seen in 56Zn, and the first observation of the 2+ isomer in 52Co. These studies were complemented by Charge Exchange reactions on the stable mirror targets.
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