The elastic scattering of protons from ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ is calculated with a microscopic, momentum space optical potential which incorporates the full spin dependence of the NN and p ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ interactions. The theory includes antisymmetrized NN amplitudes, realistic neutron and proton distributions, nucleon recoil and binding energy shifts, Lorentz invariant angle transformations, $t$ matrices with on-shell behavior from NN phase shifts, and off-shell behavior from a realistic separable potential model. Qualitative agreement is found with differential cross section and polarization data for $100<\mathrm{}{T}_{\mathrm{p}}<1000\mathrm{}$ MeV.

• Received 14 October 1983

DOI:https://doi.org/10.1103/PhysRevC.29.2267