Abstract
The elastic scattering of 16O+40Ca system at the incident energy 214 MeV has been analyzed within the optical model (OM) potential using the phenomenological Woods-Saxon (WS) and the real optical potentials calculated in two different versions of the folded model based upon the α-α effective interaction and CDM3Y6 effective nucleon-nucleon (NN) interaction. The new cluster Fermi three-parameter (3PFC) density distribution has been extracted to calculate the DFC1 potential. The Airy oscillation observed recently in the elastic 16O+40Ca system at Elab = 214 MeV is well reproduced by using the DFC1 potential without renormalization factor. The observed minimum around θ ≈ 46° in the angular distribution with DFC1 approach was shown to be an Airy minimum, probably of the third order (A3), which is in agreement with the previous study. The predicted volume integrals and total reaction cross section are consistent with the previous analyses. This reflects the success of our DFC1 potential to reproduce a nice description of the Airy structure for HI elastic scattering.
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