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)
