Saturation model for 2-gamma physics
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We introduce a saturation model for photon-photon interactions, based on a QCD dipole picture of high energy scattering. The two-dipole cross-section is assumed to satisfy the saturation property. This pomeron-like contribution is supplemented with QPM and non-pomeron reggeon contributions. The model gives a very good description of the data on the gamma-gamma total cross-section, on the photon structure function F_2^gamma(x,Q^2) at low x and on the gamma*-gamma* cross-section.
5 pages, 4 figures, uses appolb.cls. Presented at the X International Workshop on Deep Inelastic Scattering (DIS2002), Cracow, 30 April - 4 May 2002. Similar to the Epiphany Conference contribution
5 pages, 4 figures, uses appolb.cls. Presented at the X International Workshop on Deep Inelastic Scattering (DIS2002), Cracow, 30 April - 4 May 2002. Similar to the Epiphany Conference contribution