Determination of Li-6-He-4 interaction from multi-energy scattering data

We present the first successful potential model description of Li-6-He-4 sc attering. The differential cross-sections for three energies and the vector analyzing powers for two energies were fitted by a single potential with e nergy dependent imaginary components. An essential ingredient is a set of M ajorana terms in each component. The potential was determined using a recen tly developed direct data-to-potential inversion method which is a generali sation of the IP S-matrix-to-potential inversion algorithm. We discuss the problems related to this phenomenological approach, and discuss the relatio nship of our results to existing and future theories. (C) 1999 Elsevier Sci ence B.V.