Evidence of a slight nuclear transparency in the alpha-nucleus systems

In earlier works, we proposed a model for the nuclear potential of the + and + 12C systems. This theoretical model successfully described data related to the elastic and inelastic scattering processes as well as resonances that correspond to the capture reaction channel. In the present work, we extend the same model to obtain bare nuclear potentials for several -nucleus systems. We adopt this interaction to analyze fusion, elastic, and inelastic scattering data within the context of the coupled-channel formalism. Our results indicate that, for these systems, the absorption of flux of the elastic channel at internal distances of interaction is not complete. In addition, we present new experimental angular distributions for the inelastic target excitation of on Te.