Abstract
The elastic scatterings of 6Li + 24Mg and 6Li + 28Si systems at Elab = 240 MeV have been analyzed within the framework of the eikonal model by using the tangential velocity at the distance of closest approach. The calculated results, taking into account the tangential velocity, show good agreement with the observed data. The diffractive oscillatory structures at the forward angles can be explained by the strong interference between the near- and the far-side scattering amplitudes. Deep real potentials and rather weak imaginary ones are required to describe these systems. The refractive patterns of the large-angle cross sections, dominated by far-side scattering, can be shown to be sensitive to the real part of the optical potential at small radius. We investigate the effect of the tangential velocity on the phase shifts and the cross sections.
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