Diffraction and the gluon mass

We recently proposed a QCD Pomeron described by the exchange of two nonperturbative gluons characterized by a dynamically generated gluon mass. It is shown here that data on elastic scattering, exclusive ρ production in deep inelastic scattering, and the Jψ-nucleon total cross section can be successfully described in terms of a single gluon mass mg0.37 GeV. We observe that the total cross sections of hadrons with small radii, such as Jψ, have a marked dependence on the effective gluon mass.