Abstract
A -ray spectroscopy study of excited states in has been performed by using the reaction at a beam energy of 10 MeV. In particular, states have been studied above the proton threshold relevant for burning in the reaction in novae. This reaction influences the amount of injected into the interstellar medium by novae, which contributes to the overall flux of cosmic -ray emission from observed in satellite missions. The present results point strongly to the existence of a state at an excitation energy of 5890 keV lying within the Gamow burning window, which raises questions about the existence and properties of another, higher-lying state reported in previous experimental work. The existence of two such states within this excitation energy region cannot be understood within the framework of -shell-model calculations.
- Received 8 July 2015
DOI:https://doi.org/10.1103/PhysRevC.92.035808
©2015 American Physical Society