Speaker
William J. Torres Bobadilla
(Max-Planck-Institute for Physics)
Description
Since Feynman integrals in QFT evaluate to special functions and numbers,
it is essential to profit from this knowledge to extract in a simple way
preliminary information of multi-loop scattering amplitudes.
To this end, one can focus on their maximal transcendental weight contribution.
In this talk, I report on a method that uses insights into
the singularity structure of space-time loop integrands,
and complements unitarity-based methods.
I illustrate this method with the application to the two-loop scattering
amplitudes of the Higgs decay into two gluons in the heavy
top-quark mass limit.
Primary author
William J. Torres Bobadilla
(Max-Planck-Institute for Physics)
