Abstract
The reaction has been studied at Mev. Neutron groups have been observed to the first three states of . The ratio of the population of the 4.43- and 7.66- Mev states has been determined to be 8.1±1 at Mev. This value, together with information from a number of other sources, demonstrates that the 7.66-Mev state has , that its width for alpha emission is approximately the Wigner limit ( ev) and that in ∼% of the cases the state decays to the ground state of by pair emission. It is also estimated that the 7.66-Mev state can decay by emission via the , 4.43-Mev state with a probability of . This information reinforces the proposal that the 7.66-Mev state has the necessary properties to participate in the buildup of the elements in red giant stars.
- Received 6 June 1960
DOI:https://doi.org/10.1103/PhysRev.120.500
©1960 American Physical Society