Abstract

The $\ensuremath{\alpha}$+$^{16}\mathrm{O}$ resonating-group-method calculation which fits well the spectroscopic data of the $^{20}\mathrm{Ne}$ levels is shown to fit well also the scattering cross section up to high energy. The equivalent local potential derived from the resonating-group method is found to be very similar to the optical potential of Michel et al. Thus it is concluded that a significant part of the energy dependence of the real part of the $\ensuremath{\alpha}$+$^{16}\mathrm{O}$ optical potential is due to the internucleus antisymmetrization.

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