Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2009-04-23
Phys.Rev.C80:014313,2009
Physics
Nuclear Physics
Nuclear Experiment
10 pages, 8 figures
Scientific paper
10.1103/PhysRevC.80.014313
The 64-Zn(t,3-He) reaction has been studied using a secondary triton beam of 115 MeV/nucleon to extract the Gamow-Teller transition-strength distribution to 64-Cu. The results were compared with shell-model calculations using the pf-shell effective interactions KB3G and GXPF1A and with existing data from the 64-Zn(d,2-He) reaction. Whereas the experimental results exhibited good consistency, neither of the theoretical predictions managed to reproduce the data. The implications for electron-capture rates during late stellar evolution were investigated. The rates based on the theoretical strength distributions are lower by factors of 3.5-5 compared to the rates based on experimental strength distributions.
Austin Sam M.
Bazin Daniel
Gade Alexandra
Galaviz Daniel
Guess C. J.
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