Paper
The quark part of the non-forward BFKL kernel and the ``bootstrap'' for the gluon Reggeization
Authors
V. S. Fadin, R. Fiore, A. Papa
Abstract
We calculate the quark part of the kernel of the generalized non-forward BFKL equation at non-zero momentum transfer in the next-to-leading logarithmic approximation. Along with the quark contribution to the gluon Regge trajectory, this part includes pieces coming from the quark-antiquark production and from the quark contribution to the radiative corrections in one-gluon production in the Reggeon-Reggeon collisions. The results obtained can be used for an arbitrary representation of the colour group in the channel. Using the results for the adjoint representation, we demonstrate explicitly the fulfillment of the ``bootstrap'' condition for the gluon Reggeization in the next-to-leading logarithmic approximation in the part concerning the quark contribution.