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Renormalization Group Improved Small-x Equation

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arxiv hep-ph/9905566 v1 pith:TXJOBB4E submitted 1999-05-31 hep-ph

M. Ciafaloni , D. Colferai , G.P. Salam This is my paper · ORCID
classification hep-ph
keywords pomeronequationgrouphardimprovedrenormalizationsmall-xanalyze
verification ladder T0 review T1 audit T2 compute T3 formal
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We propose and analyze an improved small-x equation which incorporates exact leading and next-to-leading BFKL kernels on one hand and renormalization group constraints in the relevant collinear limits on the other. We work out in detail the recently proposed omega-expansion of the solution, derive the Green's function factorization properties and discuss both the gluon anomalous dimension and the hard pomeron. The resummed results are stable, nearly renormalization-scheme independent, and join smoothly with the fixed order perturbative regime. Two critical hard pomeron exponents are provided, which - for reasonable strong-coupling extrapolations - are argued to provide bounds on the pomeron intercept.

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Cited by 4 Pith papers

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