Impact factors for Reggeon-gluon transition in N = 4 SYM with large number of colours

Abstract

We calculate impact factors for Reggeon-gluon transition in supersymmetric Yang-Mills theory with four supercharges at large number of colours Nc. In the next-to-leading order impact factors are not uniquely defined and must accord with BFKL kernels and energy scales. We obtain the impact factor corresponding to the kernel and the energy evolution parameter, which is invariant under Moebius transformation in momentum space, and show that it is also Moebius invariant up to terms taken into account in the BDS ansatz.

13 pages

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Cited by in corpus (7)

• Analytic structure of the $n=7$ scattering amplitude in $\mathcal{N}=4$ SYM theory at multi-Regge kinematics: Conformal Regge pole contribution
• Gluon Reggeization in Yang-Mills Theories
• Relativistic Langevin dynamics: charm versus beauty
• Analytic structure of the $n=7$ scattering amplitude in $\mathcal{N}=4$ SYM theory in multi-Regge kinematics: Conformal Regge cut contribution
• Impact Factors for Reggeon-Gluon Transitions
• Discontinuities of multi-Regge amplitudes
• Discontinuites of BFKL amplitudes and the BDS ansatz