The elastic scattering of ${}_{}{}^7{}_{}{}^{}\mathrm{Li}$+${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ has been measured at $E_{\mathrm{Li}}=50\mathrm{}$ MeV and fitted with an optical model potential. The ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$(${}_{}{}^7{}_{}{}^{}\mathrm{Li}$,${}_{}{}^7{}_{}{}^{}\mathrm{Be}$)${}_{}{}^{16}{}_{}{}^{}\mathrm{N}$ reaction has been investigated at $E_{\mathrm{Li}}=50\mathrm{}$ MeV. States and groups of states were observed up to 6.3 MeV excitation in the ${}_{}{}^{16}{}_{}{}^{}\mathrm{N}$+${}_{}{}^7{}_{}{}^{}\mathrm{Be}$ system. Angular distributions for ${}_{}{}^{16}{}_{}{}^{}\mathrm{N}$ in $2^{-}$ 0.0 MeV, $3^{-}$ 0.297 MeV, and $4^{-}$ 6.17 MeV states with ${}_{}{}^7{}_{}{}^{}\mathrm{Be}$ in its ground state (${}_{}{}^7{}_{}{}^{}\mathrm{Be}_0^{}{}_{}{}^{}$), and for ${}_{}{}^{16}{}_{}{}^{}\mathrm{N}$ in the $3^{-}$ 0.297 MeV state with ${}_{}{}^7{}_{}{}^{}\mathrm{Be}$ in its first excited state (${}_{}{}^7{}_{}{}^{}\mathrm{Be}_1^{}{}_{}{}^{}$), have been compared with distorted-wave Born approximation calculations. The distorted-wave Born approximation form factors were calculated microscopically using central and tensor forces and realistic transition densities. The calculations fail to reproduce the cross sections.

• Received 19 June 1984

DOI:https://doi.org/10.1103/PhysRevC.30.1538