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Infrared approach to Reggeization

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Del Duca, Vittorio Duhr, Claude [UCL] Gardi, Einan Magnea, Lorenzo White, Chris D.

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.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 2012
Language Anglais
Journal information "Physical Review. D, Particles, Fields, Gravitation and Cosmology" - Vol. 85, no.7, p. 71104 (2012)
Peer reviewed yes
Publisher American Physical Society
issn 1550-7998
e-issn 1550-2368
Publication status Publié
Affiliation University of Durham - Department of Physics
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Bibliographic reference Del Duca, Vittorio ; Duhr, Claude ; Gardi, Einan ; Magnea, Lorenzo ; White, Chris D.. Infrared approach to Reggeization. In: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 85, no.7, p. 71104 (2012)
Permanent URL http://hdl.handle.net/2078/162230