Study Of Heavy-ions Elastic Scattering By Using The Folding Cluster Model

To understand the peripheral heavy-ion collision processes, especially elastic and inelastic scattering is an important part of an overall understanding of heavy-ion reactions.A large number of studies have been devoted through the last two decades to use folding model calculations for the analysis of scattering processes with microscopic and semimicroscopic approaches. It is one of the simplest and most successful nuclear models applied to understand nucleus-nucleus interactions through the analysis of elastic and inelastic heavy ions scattering.A successful intensive study was presented by Satcher and Love to analyze light and heavy composite ions scattering data using double folding optical potentials built upon a realistic effective nucleon-nucleon interaction folded with the nuclear matter density distributions of projectile and target nuclei.Recently, the alpha-nucleus potential, built upon an alpha-alpha interaction folded over theα-cluster distribution density of the target nucleus, was generated within the single folding approach, Theα-cluster elastic scattering data at the energy range 18-172 MeV were successfully described using the derived potentials. However, it is necessary to renormalize the calculated real potentials by an energy-dependent reduction factor in order to fit the data. We found that N r=0.5~1.0 decreasing as energy increased.In the present work, we generated the real DFC optical potentials for the light heavy ion systems: 12C+12C, 12C+28Si, 16O+12C, 16O+16O, 16O+28Si and 28Si+28Si. The DFC potentials are based upon an effectiveα-αinteraction folded with theα-clusters densities inside the projectile and target nuclei. A phenomenological potential with Woods-Saxon form was considered for the imaginary part.On the other hand, we found that the DFC potential predictions fit the observed data better than those produced by phenomenological potentials for several reactions. The success of the DFC potential to describe HI elastic scattering data is equivalent to that gained using DF M3Y potentials. In general, one may conclude that the bareα-αinteraction, used in these calculations, is suitable to be employed as an effective one to construct a DFC potential which has the ability to produce successful predictions of the light heavy-ions elastic scattering data at low energies.we have also calculated the optical potentials of theπ- Nucleus system in the frame of the independentα?cluster model and then calculated and analyzed the elastic scattering cross sections for the systems at several low projectile energies.