Sudakov resummation from the BFKL evolution

Abstract

The Leding-Logarithmic (LL) gluon Sudakov formfactor is derived from rapidity-ordered BFKL evolution with longitudinal-momentum conservation. This derivation further clarifies the relation between High-Energy and TMD-factorizations and can be extended beyond LL-approximation as well.

arXiv comment16 pages, 4 figures, significantly extended version, submitted to PRD

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