Infrared approach to Reggeization

Del Duca, V., Duhr, C., Gardi, E., Magnea, L. and White, C. D. (2012) Infrared approach to Reggeization. Physical Review D, 85(7), 071104(R). (doi: 10.1103/PhysRevD.85.071104)

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 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 exchanges, and we show that the simplest form of Regge factorization breaks down for imaginary parts of amplitudes at next-to-leading logarithms and for real parts 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 at three loops and beyond.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: White, Dr Christopher
• Authors: Del Duca, V., Duhr, C., Gardi, E., Magnea, L., and White, C. D.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review D
• Publisher: American Physical Society
• ISSN: 1550-7998
• ISSN (Online): 1550-2368