26-30 March 2012
University of Bonn
Europe/Berlin timezone

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)

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.

Primary author

José Daniel Madrigal (IFT UAM/CSIC, Madrid)

Co-authors

Dr Agustin Sabio Vera (CERN) Grigorios Chachamis (Paul Scherrer Institut) Martin Hentschinski (Autonoma University Madrid/CSIC)

Presentation Materials