MEASUREMENT OF THE 330 keV RESONANCE IN ~(18)F(p,α)~(15)O

摘要

While recent measurements have substantially improved our understanding of the ~(18)F(p,α)~(15)O reaction that is important in novae, the production of ~(18)F is still uncertain by more than 2 orders of magnitude, due in large part to the contribution of a resonance located at E_(cm) = 330 keV. We developed a new technique to study resonant (p, α) reactions and employed it to measure properties of the E_(cm) = 183 keV resonance in ~(17)O(p, α)~(14)N which had been previously reported to decrease ~(18)F production in ONeMg novae by as much as a factor of 10. The previous results were confirmed using the new technique and we now propose to use this technique to study the ~(18)F(p, α)~(15)O reaction.