Kt-Factorization vs. Renormalization Group: A small-x Consistency Argument

Abstract

The consistency of the BFKL equation with the renormalization group is investigated at next-to-leading log-x level.By use of Kt-factorization, it is found that,besides next-to-leading small-x resummation formulae, a leading, x-dependent redefinition of initial quarks and gluons is needed. Its interpretation and phenomenological relevance are discussed.

front page,7 pages, 1 figure

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• High-Energy Factorization and Small-X Deep Inelastic Scattering Beyond Leading Order
• Double Asymptotic Scaling at HERA
• Properties of the BFKL equation and structure function predictions for HERA
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