Abstract
Elastic scattering of alpha + Ca-40 is analyzed in the framework of the optical model. We adopted an independent alpha-cluster model to generate the alpha-cluster and matter density of Ca-40. We proposed a parametrized form for the alpha-cluster density and fixed its parameters according to the available experimental data about the alpha-particle and Ca-40 nuclei. The obtained alpha-cluster density of Ca-40 is used to generate the real part of the optical potential. The single folding procedure is used to generate this real optical potential with two different effective alpha-alpha interactions. The real calculated potential supplied with an imaginary Woods-Saxon squared potential is used to analyze 20 sets of experimental data in the energy range between 18 and 166 MeV. We found that our model is successful in reproducing the data for energies above 40 MeV and still doubtful for lower energies.