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We study the anomalous dimensions and coefficient functions generated by theBFKL equation in 4+2 epsilon dimensions, by investigating both running couplingeffects, and the inclusion of the full next-to-leading kernel. Aftergeneralising the Fourier representation of the solutions to this case, weanalyse the beta-dependent renormalisation-group factorisation of anomalousdimension and coefficient contributions to the gluon density. We derive on thisbasis the normalisation factor of the Q0-scheme with respect to theMSbar-scheme, including beta-dependent corrections to it, and we outline thederivation of the full next-to-leading contributions. We also provide anexpression for the resummed gamma_qg in the MSbar-scheme which exhibits itsuniversality and is explicit up to quadratures.Comment: 32 pages, 2 figure

Dimensional regularisation and factorisation schemes in the BFKL equation at subleading level