Spin-flip transitions caused by 6Li inelastic scattering and a microscopic α-spectator model

Inelastic deuteron scattering on 12C has been studied using a microscopic description for both target and projectile nuclei. From the fits of the calculated results to the experimental data, the effective two-body interaction strength has been extracted. The Wigner part of the interaction was obtained from the analysis of the 4.43-MeV (2+) state excitation and the result is compared with those found previously. The spin-spin part of the interaction was examined by the analysis of the 12.71-MeV (1+) state. In addition, the consistency of our results was also checked by analyzing inelastic 3He scattering. The real purpose of the present work was, however, to investigate such a treatment when applied to heavier projectile scattering. For this purpose, the inelastic 6Li scattering leading to the 12.71-MeV (1+) state was studied. Assuming the transition to be a spin-flip process, an α-spectator model based on the cluster description of 6Li was used. Therefore, this analysis may be considered an extension of the ordinary microscopic treatment with the nucleon-nucleon interaction to the cluster description. The results of the effective interaction strengths are presented for various radial shapes of the nucleon-nucleon interaction. The effects of more complicated possible processes are also discussed