title: Unifying approach to hard diffraction.
abstract: We find a consistency between two different approaches of hard diffraction, namely, the QCD dipole model and the soft color interaction approach. A theoretical interpretation in terms of S-matrix and perturbative-QCD properties in the small x(Bj) regime is proposed.
authors.affiliation: CEA, Service de Physique Theorique, CE-Saclay, F-91191 Gif-sur-Yvette Cedex, France.
authors.forename: H
authors.initials: H
authors.lastname: Navelet
authors.forename: R
authors.initials: R
authors.lastname: Peschanski