Anomalous renormalization of cluster-folding interactions for 6Li-nucleus scattering at low energies

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Abstract

The validity of cluster-folding (CF) interactions for elastic scattering of 6Li by various nuclei is investigated in the α+d+target three-body model. The 6Li→α+d breakup process is taken into account in the framework of the continuum-discretized coupled-channels (CDCC). It is shown that, at low energies below ElabAp≅10MeV, the real part of the CF potentials has to be reduced by about (40–50)%, even when the resonant and non-resonant breakup channels are explicitly included in the CDCC calculations, while no renormalization is necessary for fits to scattering at higher energies.

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