Infrared approach to Reggeization

Vittorio Del Duca, Claude Duhr, Einan Gardi, Lorenzo Magnea, Chris white

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

We present a new approach to Reggeization of gauge amplitudes based on the universal properties of their infrared singularities. Using the "dipole formula", a compact ansatz for all infrared singularities of massless amplitudes, we study Reggeization of singular contributions to high-energy amplitudes for arbitrary color representations, and any logarithmic accuracy. We derive leading-logarithmic Reggeization for general cross-channel color exchanges, and we show that Reggeization breaks down for the imaginary part of the amplitude at next-to-leading logarithms and for the real part at next-to-next-to-leading logarithms. Our formalism applies to multiparticle amplitudes in multi-Regge kinematics, and constrains possible corrections to the dipole formula starting at three loops.
Original languageEnglish
Article number071104(R)
Number of pages5
JournalPhysical Review D
Volume85
Issue number7
DOIs
Publication statusPublished - Apr 2012

Keywords / Materials (for Non-textual outputs)

  • hep-ph
  • hep-th

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