Critical analysis of transfer reaction models from a microscopic point of view

Based on the resonating group method, transfer reaction form factors are derived in distorted wave Born approximation. As a direct consequence of antisymmetrization, renormalization operators of relative motion in entrance and exit channels are automatically included. These operators, when used in the passive core approximation, change the conventional reduced width amplitudes into those advocated by Fliessbach. In the present paper, however, his results are derived in a way which avoids the problematic use of non-orthogonal intermediate states in the cluster transfer approximation. It is proposed to use the conventional reduced width amplitudes, together with proper renormalization kernels, in order to separate structure effects from reaction dynamics (energy dependence, absorption etc.) which determines the actual importance of the renormalization operators in entrance and exit channels. (orig.)