Optical Model Analysis of 58Ni(6Li,6Li')

Optical models describe nuclear scattering by constructing an effective potential. Various models consisting of Woods-Saxon form factors and/or double folded potentials were tested for 58Ni(6Li,6Li') scattering. Elastic and inelastic scattering measurements at 343 MeV beam energy were obtained from experiments in 2008 at The Research Center for Nuclear Physics (RCNP) at Osaka University. Standard data reduction was performed to extract angular cross sections for elastic, 2⁺, and 3^- scattering. Optical model parameters were obtained by fitting elastic scattering data with ECIS via an automated, recursive searching algorithm. The inclusion of an imaginary surface term significantly improves agreement for low lying states. Models using Woods-Saxon real potentials provide better fits than double folded real potentials on elastic scattering but perform similarly on low lying states. Several models fit equally well to experimental data and are only clearly distinguishable by their imaginary volume integrals. These models enable helpful predictions for other nuclear phenomena, such as giant resonances.