XX International Workshop on Deep-Inelastic Scattering and Related Subjects

Calculation of the Two-Loop Gluon Regge Trajectory from Lipatov's Effective Action

29 Mar 2012, 11:00

20m

Lecture Hall, Institute for Applied Physics (University of Bonn)

Diffraction and vector mesons Diffraction and vector mesons

Speaker

José Daniel Madrigal (IFT UAM/CSIC, Madrid)

Description

Lipatov's high-energy effective action is a very promising tool for computations in the Regge limit beyond leading order. Its use has been however restricted to tree-level calculations for many years. Recently a regularization/subtraction prescription was proposed that allows to extend the formalism to deal with loops in a consistent way. We illustrate the procedure with the computation of the gluon Regge trajectory at two loops.

Presentation materials

Proceedings

129-madrigal_jose_2.pdf

Slides

Madrigal_Effective_Action.pdf