arXiv:1206.5101·v1·High Energy Physics — Phenomenology
Two-Loop Gluon Regge Trajectory from Lipatov's Effective Action
Grigorios Chachamis🇨🇭 · Martin Hentschinski🇪🇸 · José Daniel Madrigal🇪🇸 · Agustín Sabio Vera🇪🇸
Abstract
Lipatov's high-energy effective action is a useful tool for computations in the Regge limit beyond leading order. Recently, a regularisation/subtraction prescription has been proposed that allows to apply this formalism to calculate next-to-leading order corrections in a consistent way. We illustrate this procedure with the computation of the gluon Regge trajectory at two loops.
Comments: 4 pages, 5 figures, Proceedings of the XX Workshop on Deep-Inelastic Scattering and Related Subjects, 26-30 March, University of Bonn (2012)