One-loop Reggeon-reggeon-gluon Vertex at Arbitrary Space-time Dimension *
نویسندگان
چکیده
In order to check the compatibility of the gluon Reggeization in QCD with the s-channel unitarity, the one-loop correction to the Reggeon-Reggeon-gluon vertex must be known at arbitrary space-time dimension D. 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 D is also obtained.
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