High energy QCD beyond the mean field approximation
Abstract
It has been recently understood how to deal with high-energy scattering beyond the mean field approximation. We review some of the main steps of this theoretical progress, like the role of Lorentz invariance and unitarity requirements, the importance of discreteness and fluctuations of gluon numbers (Pomeron loops), the high-energy QCD/statistical physics correspondence and the consequences for the saturation scale, the scattering amplitude and other, also measurable, quantities.
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