The (gamma*-q q)-Reggeon Vertex in Next-to-Leading Order QCD
Abstract
As a first step towards the computation of the NLO corrections to the photon impact factor in the γ*γ* γ* γ* scattering process, we calculate the one loop corrections to the coupling of the reggeized gluon to the γ* qq vertex. We list the results for the Feynman diagrams which contribute: all loop integrations are carried out, and the results are presented in the helicity basis of photon, quark, and antiquark.
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