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We study the diffractive jet production in electron-ion collisions in the kinematic region where the mass M X of the diffractive final state is larger than Q 2. Based on parton saturation framework, predictions are done for the kinematics of future or possible eA machines as the EIC, LHeC, HE-LHeC, and FCC-eA. We analyze the differential cross section as a function of jet (gluon) transverse momentum and from the experimental point of view this observable could be used to extract the saturation scale as a function of x IP .

The presence of geometric scaling within the p T spectra of produced hadrons at high energy pp collisions using small-x k T-factorization is investigated. It is proposed a phenomenological parameterization for the unintegrated gluon distribution in the scaling range that reproduces the features of the differential cross section both in the saturated and dilute perturbative QCD regimes. As the saturation scale acts as an effective regulator of the infrared region, the extension of the model to quantities usually associated to soft physics is studied. The approach is applied to compute the average p T and the rapidity distribution of produced gluons at high energies.

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