Radiative Corrections to QCD Amplitudes in Quasi-Multi-Regge Kinematics

Abstract

Radiative corrections to QCD amplitudes in the quasi-multi-Regge kinematics are interesting in particular since the Reggeized form of these amplitudes is used in the derivation of the NLO BFKL. This form is a hypothesis which must be at least carefully checked, if not proved. We calculate the radiative corrections in the one-loop approximation using the s-channel unitarity. Compatibility of the Reggeized form of the amplitudes with the s-channel unitarity requires fulfillment of the set of nonlinear equations for the Reggeon vertices. We show that these equations are satisfied.

arXiv comment28 pages,3 figures

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• Gluon Reggeization in Yang-Mills Theories
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• Open charm production at high energies and the quark Reggeization hypothesis
• On the role of NLL corrections and Energy Conservation in the High Energy Evolution of QCD
• S-matrix and productions amplitudes in high energy QCD
• Unifying approaches: derivation of Balitsky hierarchy from the Lipatov effective action
• On correlators of Reggeon fields and operators of Wilson lines in high energy QCD
• High energy scattering in Einstein-Cartan gravity
• On QCD RFT corrections to the propagator of reggeized gluons
• On relative contributions of fusion and fragmentation mechanisms in J/psi photoproduction at high energy
• Verification of bootstrap conditions for amplitudes with quark exchanges in QMRK
• Effective vertex of quark production in collision of Reggeized quark and gluon