Abstract
The energies of neutrons from and reactions have been measured by use of photographic emulsions and enriched targets. Neutron groups corresponding to levels in at 1.85, 4.23, 4.77, 6.40, 6.77, 7.39, 8.08, 8.39, 8.62, and possibly 8.97 and 9.13 Mev, have been observed. Most of these levels in show good correspondence to those previously reported for the mirror nucleus . This correspondence supports the assumed equality of and forces. Neutrons from normal boron targets were observed, corresponding to levels in at 4.4-, 9.6-, 10.8-, 11.1-, 11.74-, 12.76-, 15.09-, and 16.07-Mev excitation. There were also some indication of additional levels at 13.21-, 13.36-, 14.16-, and 15.52-Mev excitation.
- Received 22 October 1951
DOI:https://doi.org/10.1103/PhysRev.86.302
©1952 American Physical Society