Differential cross sections and analyzing powers of the ${}_{}{}^{17}{}_{}{}^{}\mathrm{O}$(p→,t) reaction were measured over the angular range from 5° to 55° at $T_{\mathrm{p}=89.7\mathrm{}}$ MeV. The data for transitions to five residual states of ${}_{}{}^{15}{}_{}{}^{}\mathrm{O}$ are compared with calculations in the finite-range and zero-range distorted-wave Born approximation. The distorting potential parameters were obtained from optical-model analyses of elastic proton and helion scattering. The (p→,t) cross sections are underpredicted by the finite-range calculations and overpredicted by zero-range calculations based on standard normalizations. The reproduction of the analyzing powers is only fair. Two-step calculations of the type (p→,d;d,t) were performed in a zero-range, second-order distorted-wave Born approximation. The ground state and six one-particle, one-hole states of ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ were taken into account as intermediate states. Consistent improvement in the prediction of the data was not obtained.

• Received 13 May 1985

DOI:https://doi.org/10.1103/PhysRevC.32.1465