Diffractive electroproduction of vector mesons from light nuclei

Coherent electroproduction of vector mesons from light nuclei is considered in the kinematics of deep inelastic scattering. Special emphasis is given to the -t similar to 0.8 - 1 GeV2 region where the cross section is dominated by the interaction of the q (q) over bar configuration in the gamma* with two nucleons. This kinematics provides the unique possibilities to study the onset of Color Transparency with increasing Q(2) as well as its gradual disappearance at very small x, i.e., perturbative Color Opacity. It also allows to discriminate between leading twist and higher twist mechanisms of gluon shadowing. We demonstrate that the discussed kinematics of Electron Polarized Ion Collider well suited for such investigations and emphasize advantages of using polarized deuterons.