Paper
Quark contribution to the gluon Regge trajectory at NLO from the high energy effective action
Authors
G. Chachamis, M. Hentschinski, J. D. Madrigal Martinez, A. Sabio Vera
Abstract
The two loop (NLO) diagrams with quark content contributing to the gluon Regge trajectory are computed within the framework of Lipatov's effective action for QCD, using the regularization procedure for longitudinal divergencies recently proposed by two of us in http://arXiv.org/abs/arXiv:1110.6741. Perfect agreement with previous results in the literature is found, providing a robust check of the regularization prescription and showing that the high energy effective action is a very useful computational tool in the quasi-multi-Regge limit.