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Geometric scaling in exclusive processes

S. Munier, S. Wallon

hep-pharXiv:hep-ph/0303211

Abstract

We show that according to the present understanding of the energy evolution of the observables measured in deep-inelastic scattering, the photon-proton scattering amplitude has to exhibit geometric scaling at each impact parameter. We suggest a way to test it experimentally at HERA. A qualitative analysis based on published data is presented and discussed.

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