Angular distributions of protons from the ${\mathrm{B}}^{11}(\alpha , p){\mathrm{C}}^{14}$ reaction have been measured with alpha-particle energies ranging from 2.0 to 3.7 Mev. Eight resonances in the reaction have been observed, corresponding to states in ${\mathrm{N}}^{15}$ in the range from 12.50 to 13.60 Mev excitation. Analysis in terms of the compound nucleus formalism has yielded spin and parity assignments for the six most prominent resonances.

• Received 19 December 1958

DOI:https://doi.org/10.1103/PhysRev.115.160