Arrangement channel approach to reactive systems: theory and numerical algorithms (as applied to the HFH system)

In this work a new approach for treating realistic reactive atom-diatom systems is presented. The method is based on an explicit coupling of several Lippmann-Schwinger equations related to the various physical accessible arrangement channels. The uniqueness of this approach is that no matching is employed in transforming from one arrangement channel to the other. The reliability of the method was previously demonstrated; a detailed numerical study of the parameters that enter the algorithm used to solve the integral equations is presented.