Impact parameter dipole saturation model

Gluon Saturation in the Colour Dipole Model?

We use data on the deep inelastic structure function F2 in order to constrain the cross-section for scattering a colour dipole off a proton. The data seem to prefer parameterisations which include saturation effects. That is they indicate that the strong rise with energy of the dipole cross-section, which holds for small dipoles, pertains only for r < rs(x) where rs(x) decreases monotonically a...

Isotropy, homogeneity and dipole saturation

A distribution of points that satisfies the property of local isotropy is not necessarily homogeneous: homogeneity is implied by the condition of local isotropy together with the assumption of analyticity or regularity. Here we show that the evidence of dipole saturation in galaxies (and clusters) catalogues, together with a monotone growth of the monopole, is an evidence of isotropy but not of...

Unitarity and Saturation in the Dipole Formulation

The dipole formulation is an approach to small-x physics which for total cross sections is equivalent to the BFKL approach and which has been used in a variety of phenomenological studies. It is reviewed in the talk by Webber: in the limit of a large number of colours, the small-x heavy quarkonium (onium) light-cone wave function can be represented as a chain of colour dipoles stretching in imp...

Binary-encounter-dipole model for electron-impact ionization.

The dipole picture in DIS: saturation and heavy quarks

Notice: This manuscript has been authored by employees of Brookhaven Science Associates, LLC under Contract No. DE-ACOZ98CH10886 with the U.S. Department of Energy. The publisher by accepting the manuscript for publication acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript...