The elastic scattering and single-nucleon stripping reactions induced by 312.6 MeV ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ on ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$ are investigated and compared with data at lower incident energies. Distorted-wave Born-approximation analyses account rather well for the relative final-state yields at each energy, but fail to reproduce the absolute energy dependence of the observed transfer cross sections.

NUCLEAR REACTIONS ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$(${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$, ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$), ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$(${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$, ${}_{}{}^{15}{}_{}{}^{}\mathrm{N}$), ${}_{}{}^{208}{}_{}{}^{}\mathrm{Pb}$(${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$, ${}_{}{}^{15}{}_{}{}^{}\mathrm{O}$), $E_L=312.6\mathrm{}$ MeV; measured $\sigma \left(\theta \right)$; optical model and DWBA analyses; energy dependence of DWBA.

• Received 3 January 1978

DOI:https://doi.org/10.1103/PhysRevC.18.205