Abstract
When the transfer of clusters and the symmetrization (antisymmetrization) of scattering wave functions is described by cluster models within the coupled-channel formalism, non-local coupling potentials arise. We suggest a procedure to calculate these potentials by a multipole expansion of all potentials and wave functions which depend on sums of vectors. The expansion coefficients are found by least-squares fit. The method is applied to the 16O( 16O, 12C) 20Ne reaction, which is treated in the cluster model with two inert 12C- and α-clusters as constituents.
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