Dipole-proton S-matrix derived from diffractive meson electroproduction
Abstract
Through a determination of the S-matrix element for the scattering of a localized colour dipole on a proton, we show that saturation effects can already be sizable at HERA. The saturation scale is found to be around 1-1.5 GeV2 for the highest available energies and for central collisions, and is a decreasing function of the impact parameter.
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