Spin-flip transitions caused by /sup 6/Li inelastic scattering and a microscopic. cap alpha. -spectator model

Inelastic deuteron scattering on $^{12}\mathrm{C}$ 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 $^{3}\mathrm{He}$ 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 $^{6}\mathrm{Li}$ scattering leading to the 12.71-MeV (${1}^{+}$) state was studied. Assuming the transition to be a spinflip process, an $\ensuremath{\alpha}$-spectator model based on the cluster description of $^{6}\mathrm{Li}$ 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.