Gamow-Teller transitions to 64-Cu measured using the 64-Zn(t,3-He) reaction
Nuclear Experiment
2009-08-20 v1
Abstract
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.
Keywords
Cite
@article{arxiv.0904.3645,
title = {Gamow-Teller transitions to 64-Cu measured using the 64-Zn(t,3-He) reaction},
author = {G. W. Hitt and R. G. T. Zegers and Sam M. Austin and D. Bazin and A. Gade and D. Galaviz and C. J. Guess and M. Horoi and M. E. Howard and Y. Shimbara and E. E. Smith and C. Tur},
journal= {arXiv preprint arXiv:0904.3645},
year = {2009}
}
Comments
10 pages, 8 figures