Effective Orthogonality of Channel Wave Functions and Coupled Equations for Direct Interactions

Abstract

An explicit proof is given of the effective orthogonality among the channel wave functions obtained from a set of coupled equations by showing that the nonorthogonal parts of the wave functions are physically redundant, thus providing a rigorous basis for the treatment of nuclear stripping and pickup reactions. An orthogonality-preserving procedure of the coupled-channel method is outlined.