Abstract
The reaction was studied at MeV to deduce the branching ratios of / of resonant states at 18.91–20.1MeV in , which are necessary to extract the reaction rate relevant to the destruction in the big bang nucleosynthesis, from the reaction cross section. The decay protons from to the ground and first excited states in were well-separately measured. The / ratio of the 19.235-MeV state was deduced to be %. The 19.86- and 20.1-MeV states were found to decay dominantly into the first excited and ground states of , respectively.
- Received 23 September 2020
- Accepted 14 December 2020
DOI:https://doi.org/10.1103/PhysRevC.103.015801
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