Observation of the decay of a new isotope Cu-57 and its mirror transition
Dec, 1984
3 pages
Published in:
- Phys.Rev.C 30 (1984) 2111-2114
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Abstract: (APS)
The decay of Cu282957 produced with the Ni58(p,2n) reaction was identified by a 1112-keV γ ray occurring in its daughter nucleus Ni57 and the half-life and β+ end-point energy were measured to be 223±16 ms and 7720±130 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=3.71±0.05 and 〈στ〉=0.37±0.11. The present results indicate a large reduction of 〈στ〉 from the single particle value (1.291) although Cu57 is a nucleus obtained by adding one proton to the Ni282856 core.References(19)
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