Optical model potentials with various forms of energy-dependent geometry have been considered for the description of ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ + ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ elastic scattering. It is shown that the variation with energy of the imaginary radius leads to a reasonable fit of the cross-section data, throughout the energy range.

• Received 25 March 1985

DOI:https://doi.org/10.1103/PhysRevC.32.657