A folding potential for the elastic α+ 20 Ne scattering is constructed based on the α+ 16 O structure model of the 20 Ne nucleus. The elastic scattering angular distributions of the α+ 20 Ne system at incident energies E α = 31.1, 54.1, and 104.0 MeV have been calculated by using the folding potential. The experimental angular distributions and the anomalous large angle scattering (ALAS) features can be satisfactorily described. The anomaly of the α+ 20 Ne system is clearly reconfirmed in the present folding model analysis and should be further systematically investigated.

The α+ 20 Ne elastic scattering angular distributions at lower incident energies of Eα = 12.7-31.1 MeV have been analyzed by using the α-folding potential based on the α+ 16 O structure model of the 20 Ne nucleus. The α-folding potential with a standard Woods-Saxon type imaginary part, can reasonably describe experimental cross sections and the anomalous large angle scattering (ALAS) features. The anomaly of the α+ 20 Ne scattering system is further confirmed in the lower incident energy region.