Break-up effect on 7Li + 28Si elastic scattering angular distributions

Abstract

The 7Li + 28Si angular distributions for elastic scattering in the laboratory energy range of 8.5–36 MeV are reanalyzed using different approaches based on both phenomenological and microscopic potentials. Special attention is paid to the α + t cluster structure for 7Li, which appears at a threshold energy of 2.468 MeV. The performed analysis using the different implemented potentials showed that the breakup of 7Li in the field of 28Si plays a strong effect in forming the cross sections. Such an effect results in a significant reduction in the renormalization factors of the utilized potentials. A satisfactory description of the data is achieved using the different implemented approaches.

Keywords

• Cluster folding model
• Sao Paulo potential
• double folding
• Dynamic polarization potential
• 24.10.Ht
• 25.70.Bc