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In our recent studies, an empirical barrier distribution was proposed for a unified description of the fusion cross sections of light and medium-heavy fusion systems, the capture cross sections of the reactions leading to superheavy nuclei, and the large-angle quasi-elastic scattering cross sections based on the Skyrme energy-density functional approach. In this paper, we first give a brief review of these results. Then, by examining the barrier distributions in detail, we find that the fusion cross sections depend more strongly on the shape of the left side of the barrier distribution while the quasi-elastic scattering cross sections depend more strongly on the right side. Furthermore, by combining these studies and the HIVAP calculations for the survival probability, the formation probability of the compound nucleus is deduced from the measured evaporation residue cross sections for "cold" and "hot" fusion reactions.energy-density functional, fusion, fission, scattering, superheavy nucleiIn our recently published papers [1−5] , we proposed an approach for a unified description of the fusion cross sections of light and medium-heavy fusion systems, the capture cross sections of the reactions leading to superheavy nuclei, and the largeangle quasi-elastic scattering cross sections based on the Skyrme energy-density functional approach. In this paper, we first give a brief review of this approach. Then, the influence of the shape of the barrier distribution on fusion cross sections and quasielastic scattering cross sections is studied carefully. Finally, we attempt to deduce the formation probability of compound nucleus from the measured evaporation residue cross sections of superheavy nuclei combining the proposed approach.It is known that theoretical support for the timeconsuming experiments to produce superheavy nuclei is vital in choosing the optimum targetprojectile-energy combinations, and for the estimation of cross sections of evaporation residues. In the practical calculation of the evaporation residue cross section, the reaction process leading to the synthesis of superheavy nuclei is divided into two or three steps [6−9] . The simplified version of the

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.

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