The elastic-scattering differential cross sections and the cross section for the reaction ${\mathrm{He}}^3(d, \alpha ){\mathrm{H}}^1$ have been measured in the neighborhood of energies corresponding to the 18.6-Mev level in the compound nucleus ${\mathrm{Li}}^{5*}$. The reaction data are essentially in agreement with earlier data having a maximum in the total cross section of approximately 0.94 barn. The interference between the elastic scattering and reaction process make the elastic-scattering cross sections at ${\theta }_{\mathrm{c}.\mathrm{m}.\mathrm{}}=65.4\mathrm{}°$ about 40 percent less than Rutherford scattering.

• Received 2 November 1953

DOI:https://doi.org/10.1103/PhysRev.93.825