The decay of Cu282957 produced with the Ni58(p,2n) reaction was identified by a 1112-keV ray occurring in its daughter nucleus Ni57 and the half-life and + end-point energy were measured to be 22316 ms and 7720130 keV, respectively, applying a technique of fast transportation of irradiated targets. The logft value and Gamow-Teller matrix element of the ground-to-ground mirror transition of Cu282957(Tz=-12)'Ni292857(Tz=12) was deduced to be logft=3.710.05 and=0.370.11. The present results indicate a large reduction of from the single particle value (1.291) although Cu57 is a nucleus obtained by adding one proton to the Ni282856 core.
ASJC Scopus subject areas
- Nuclear and High Energy Physics