TL;DR
This paper derives the LL gluon Sudakov form factor from BFKL evolution with rapidity ordering and momentum conservation, clarifying its relation to high-energy and TMD factorization, and suggests extensions beyond LL approximation.
Contribution
It provides a derivation of the LL gluon Sudakov form factor from BFKL evolution, linking high-energy and TMD factorization frameworks.
Findings
Derived the LL gluon Sudakov form factor from BFKL evolution.
Clarified the relation between high-energy and TMD factorization.
Indicated potential extensions beyond LL approximation.
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.
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