NLO corrections to the BFKL equation in QCD and in supersymmetric gauge theories

Details NLO corrections to the BFKL equation in QCD and in supersymmetric gauge theories NLO corrections to the BFKL equation in QCD and in supersymmetric gauge theories

2000-04-02

arxiv.org/abs/hep-ph/0004008v2

Nucl.Phys.B582:19-43,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 26 pages, typos corrected, to be published in Nucl.Phys.B

Scientific paper

10.1016/S0550-3213(00)00329-1

We study next-to-leading corrections to the integral kernel of the BFKL equation for high energy cross-sections in QCD and in supersymmetric gauge theories. The eigenvalue of the BFKL kernel is calculated in an analytic form as a function of the anomalous dimension \gamma of the local gauge-invariant operators and their conformal spin n. For the case of an extended N=4 SUSY the kernel is significantly simplified. In particular, the terms non-analytic in n are canceled. We discuss the relation between the DGLAP and BFKL equations in the N=4 model.

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