Saturation model for 2-gamma physics

Details Saturation model for 2-gamma physics Saturation model for 2-gamma physics

2002-06-14

arxiv.org/abs/hep-ph/0206130v1

Acta Phys.Polon. B33 (2002) 3045-3050

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 4 figures, uses appolb.cls. Presented at the X International Workshop on Deep Inelastic Scattering (DIS2002), Cracow,

Scientific paper

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.

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