  We construct non-perturbative inputs for the elastic gluon-hadron scattering
amplitudes in the forward kinematic region for both polarized and non-polarized
hadrons. We use the optical theorem to relate invariant scattering amplitudes
to the gluon distributions in the hadrons. By analyzing the structure of the UV
and IR divergences, we can determine theoretical conditions on the
non-perturbative inputs, and use these to construct the results in a
generalized Basic Factorization framework using a simple Resonance Model. These
results can then be related to the K_T and Collinear Factorization expressions,
and the corresponding constrains can be extracted.
