Special Seminar: Symmetries of Feynman Integrals

Barak Kol
Hebrew Univ. of Jerusalem
Monday, February 13, 2017
11:00 am
FRH 3122
*Special day / time / location

Feynman diagrams and integrals introduced in 1948 are the computational core of Quantum Field Theory. We shall describe a new and general method to evaluate Feynman Integrals, where the integral’s parameter space is foliated by the action of a symmetry group G, and its dependence within a G-orbit is reduced to a line integral over simpler, propagator-contracted diagrams. The group depends only on the diagram topology, and the diagram parameters consist of the masses and the kinematical invariants. Relations with the ongoing revolution in perturbative Quantum Field Theory known as Scattering Amplitudes will be discussed.

The Hebrew University of Jerusalem, The Racah Institute of Physics

Sheldon Campbell
Iftah Galon
Felix Kling
Sebastian Trojanowski