Excitation curves and angular distributions have been obtained for five (${\mathrm{He}}^3$, $p$) reactions in which the initial and final states were of known spins and parities. The results give information on the reaction mechanisms involved. All the reactions studied showed resonances in the excitation curves indicating that the reactions proceeded at least in part by way of a compound system. In one or possibly two cases, the angular distributions showed a strong asymmetry about 90°, suggesting the admixture of some other reaction mechanism.

• Received 1 August 1956

DOI:https://doi.org/10.1103/PhysRev.104.1064