Gluon production and diffraction in the dipole picture

Abstract

Using the eikonal approximation, we show that inclusive gluon production is related to the scattering of a gluon-gluon dipole while diffractive gluon production in DIS is related to a two-$q\bar{q}$ dipole scattering amplitude. Hence diffractive photon dissociation cross-sections are observables that provide potential information on dipole correlations, which represent an open issue in high-energy QCD.

Comments: 4 pages, 2 figures, Proceedings of the 10th International Baryons Conference (Baryons04), Ecole Polytechnique, Palaiseau, France, October 25-29 2004