Paper
Forward jet production and quantum corrections to the gluon Regge trajectory from Lipatov's high energy effective action
Authors
G. Chachamis, M. Hentschinski, J. D. Madrigal Martinez, A. Sabio Vera
Abstract
We review Lipatov's high energy effective action and show that it is a useful computational tool to calculate scattering amplitudes in (quasi)-multi-Regge kinematics. We explain in some detail our recent work where a novel regularization and subtraction procedure has been proposed that allows to extend the use of this effective action beyond tree level. Two examples are calculated at next-to-leading order: forward jet vertices and the gluon Regge trajectory.