arXiv subjects

Jose Daniel Madrigal

Publications and source records attributed to Jose Daniel Madrigal.

2 recordsLinked to original sources

arXiv2012

Lipatov's Effective Action Beyond Tree Level

Computations in Quasi-Multi-Regge kinematics are much simplified using an effective theory pioneered by Lipatov. This high-energy effective theory does not come from an integrating out procedure, and suitable counterterms and regularization have to be provided beyond tree level. In this note we explain this prescription and illustrate it with one- and two-loop examples.

hep-ph↗

arXiv2012

NLO corrections to the gluon induced forward jet vertex from the high energy effective action

We determine both real and virtual next-to-leading order corrections to the gluon induced forward jet vertex, from the high energy effective action proposed by Lipatov. For these calculations we employ the same regularization and subtraction formalism developed in our previous work on the quark-initiated vertex. We find agreement with previous results in the literature.

hep-ph↗