Abstract
The (,) reaction has been studied by using a secondary triton beam of 115 MeV/nucleon to extract the Gamow-Teller transition-strength distribution to . The results were compared with shell-model calculations with the -shell effective interactions KB3G and GXPF1A and with existing data from the (,) 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.
1 More- Received 22 April 2009
DOI:https://doi.org/10.1103/PhysRevC.80.014313
©2009 American Physical Society