; Tan, Hai-Lan] Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China
; [Li, Qing-Run] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China
A folding potential for the elastic alpha+Ne-20 scattering is constructed based on the alpha+O-16 structure model of the Ne-20 nucleus. The elastic scattering angular distributions of the alpha+Ne-20 system at incident energies E-alpha = 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 alpha+Ne-20 system is clearly reconfirmed in the present folding model analysis and should be further systematically investigated.