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arXiv · hep-ph/9504247

BFKL predictions at small x from k_T and collinear factorization viewpoints

J. Kwiecinski·A. D. Martin
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Abstract

Hard scattering processes involving hadrons at small $x$ are described by a $k_T$-factorization formula driven by a BFKL gluon. We explore the equivalence of this description to a collinear-factorization approach in which the anomalous dimensions $γ_{gg}$ and $γ_{qg}/α_S$ are expressed as power series in $α_S \log (1/x)$, or to be precise $α_S/ω$ where $ω$ is the moment index. In particular we confront the collinear-factorization expansion with that extracted from the BFKL approach with running coupling included.

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J. Kwiecinski, A. D. Martin. 1995-04-06. BFKL predictions at small x from k_T and collinear factorization viewpoints. https://doi.org/10.1016/0370-2693(95)00564-2

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