Dual conformal invariance in the Regge limit
arXiv:0908.2568 · doi:10.1016/j.physletb.2010.04.077
Abstract
A dual conformal symmetry, analogous to the dual conformal symmetry observed for the scattering amplitudes of N=4 Super Yang-Mills theory, is identified in the Regge limit of QCD. Combined with the original two-dimensional conformal symmetry of the theory, this dual symmetry can potentially explain the integrability of the BFKL Hamiltonian. We also give evidence that the symmetry survives when a subset of unitarity corrections are taken into account by studying briefly the non-planar 2 to m reggeon transition vertices.
10 pages. v2: clarifications and references added. v3: Minor corrections, comments on non-planar extension of dual conformal symmetry removed
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