1211.2050 (G. Chachamis et al.)

Forward jet production and quantum corrections to the gluon Regge
trajectory from Lipatov's high energy effective action    [PDF]

G. Chachamis, M. Hentschinski, J. D. Madrigal Martinez, A. Sabio Vera

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.

View original: http://arxiv.org/abs/1211.2050