The differential cross sections of the three highest energy proton groups from the ${\mathrm{C}}^{12}({\mathrm{He}}^3, p){\mathrm{N}}^{14}$ reaction were measured at six angles as a function of incident ${\mathrm{He}}^3$ energy from 2.0 to 5.0 Mev. Broad resonances were observed at 3.0, 3.6, 4.4, and 4.8 Mev in addition to those previously observed. The angular distributions are rather complex and not easily attributable to either a compound nucleus or a direct interaction. The differential cross sections have been measured at closely spaced angular intervals from 7 to 158 degrees in the center-of-mass system for bombarding energies of 2.0 and 4.5 Mev.

• Received 5 September 1957

DOI:https://doi.org/10.1103/PhysRev.109.884