Abstract
Angular distributions have been measured for three groups of protons from the reaction, those leaving in its states at 0, 0.096, and 1.47 Mev. Deuteron energies of 1.74 and 2.50 Mev in the laboratory system were used. The distributions of protons leaving in its ground state and in its 1.47-Mev state are characteristic of stripping and indicate the formation of the ground state by an neutron and of the 1.47-Mev state by an neutron. However, the distribution of protons leaving in its 0.096-Mev state does not lend itself to a stripping interpretation.
It has been found that the decay of the 1.47-Mev state of , following the formation of this state in the reaction, proceeds mostly to the 0.096-Mev state. The mean life of the 0.096-Mev state has been measured by observing the decay in flight of recoiling excited nuclei and is found to be 1.75(1±0.16)× second. These observations restrict the likely assignments of spin and parity for the 0.096-Mev state to or .
- Received 1 December 1958
DOI:https://doi.org/10.1103/PhysRev.114.837
©1959 American Physical Society