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arXiv · 1108.5947

An infrared approach to Reggeization

Vittorio Del Duca·Claude Duhr·Einan Gardi·Lorenzo Magnea·Chris D. White
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Abstract

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.

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Vittorio Del Duca, Claude Duhr, Einan Gardi, Lorenzo Magnea, Chris D. White. 2011-08-30. An infrared approach to Reggeization. https://doi.org/10.1103/physrevd.85.071104

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