Analyses of α-nucleus interaction on the 28Si(α, d)30P reaction at 40 and 50 MeV

The angular distributions of the 28Si(alpha, d)30P reaction at 40 and 50 MeV incident energies have been analyzed using the full finite-range (FFR) distorted-wave Born approximation (DWBA) method. Three forms of the optical model potentials namely, Woods-Saxon, Michel, and molecular potentials are used to analyze the bound states of the 30P nucleus for 8 and 21 transitions at 40 and 50 MeV, respectively. The two -nucleon spectroscopic factors that have been obtained for the three optical model potentials are compared with the previous experimental and theoretical calculations. The chi 2N values have been calculated for the optical model potentials to estimate the quality of fits for the alpha + 28Si elastic scattering and the 28Si(alpha, d)30P reaction at two different incident energies. These analyses show that the Michel and the molecular potentials describe the elastic scattering data more satisfactorily than the Woods-Saxon potential at 40 and 50 MeV incident energies, but for the reaction analyses at 40 MeV the Woods-Saxon potential takes over the other two forms of potential. These investigations also show that the direct two nucleons transfer reaction mechanism with the angular distributions of the admixture of L transfers in most of the states of 30P is seemingly sufficient for all forms of the optical model potential at these incident energies. (c) 2022 Elsevier B.V. All rights reserved.