Equivalent local potentials for three-body scattering

It is of considerable interest to apply the inverse scattering method at fixed energy, yielding energy-dependent potentials, to a problem in which the full dynamics of a composite-particle reaction is incorporated in an exact manner. This was implemented by calculating complete sets of phase shifts for elastic nd scattering, at various energies and for all partial waves which are exact within the numerical accuracy achieved. The S-matrices constructed from them are then used as input for a fixed-E inversion to deduce a quantal equivalent local potential which correctly takes into account the effects of the full three-body dynamics on the elastic channel, and of the Pauli principle. 6 refs.; 6 figs