Phenomena Peculiar to Nuclear Molecular Potentials inO16+O16Scattering

Elastic-scattering calculations for ${\mathrm{O}}^{16}$ + ${\mathrm{O}}^{16}$ by real molecular-type potentials were carried out over energies 8-30 MeV (c.m.). The cross sections are too large, although they show the erratic behavior expected in the orbiting energy range. A Blair approximation with an absorbing core of 3- to 4-F radius on these molecular-potential phase shifts gives the correct magnitude and energy dependence of the excitation function from 17 to 26 MeV.