Paper
One-loop Reggeon-Reggeon-gluon vertex at arbitrary space-time dimension
Authors
V. S. Fadin, R. Fiore, A. Papa
Abstract
In order to check the compatibility of the gluon Reggeization in QCD with the -channel unitarity, the one-loop correction to the Reggeon-Reggeon-gluon vertex must be known at arbitrary space-time dimension . We obtain this correction from the gluon production amplitude in the multi-Regge kinematics and present an explicit expression for it in terms of a few integrals over the transverse momenta of virtual particles. The one-gluon contribution to the non-forward BFKL kernel at arbitrary is also obtained.