Angular Dependence in Transverse Momentum Dependent Diffractive Parton Distributions at Small-X

We discuss the angular dependence of the recently proposed transversemomentum dependent quark and gluon diffractive parton distributions atsmall-x. We introduce the difractive versions of the Sivers function and theelliptic gluon Wigner distribution and evaluate them in simple models withgluon saturation and study their geometric scaling properties. We also showthat the diffractive version of the linearly polarized gluon distributionidentically vanishes to leading order. These distributions enrich the physicsopportunities for measuring semi-inclsuive diffractive DIS processes at thefuture electron-ion colliders.