Speaker
Martin Sprenger
(DESY Theory Group)
Description
In this talk, I will investigate n-gluon scattering amplitudes in the multi-Regge region of N=4 supersymmetric Yang-Mills theory at strong coupling. To leading order, the amplitude at strong coupling is given in terms of a minimal surface in AdS5. The area of this surface can be calculated by a set of non-linear integral equations, which, however, do not allow an analytic solution for arbitrary kinematics.
I will demonstrate that in the multi-Regge limit these equations simplify drastically and become algebraic equations.
This result implies that there exists an auxiliary system of algebraic Bethe ansatz equations which encode valuable information on the analytical structure of amplitudes at strong coupling.
Primary author
Martin Sprenger
(DESY Theory Group)
Co-authors
Jochen Bartels
(II. Institute for Theoretical Physics, Hamburg University)
Volker Schomerus
(DESY Theory Group)
