Speaker
Mathieu Giroux
Description
We review a recent recursive unitary-based workflow that opens the path further to a systematic treatment of Landau singularities for n-point scattering amplitudes in perturbation theory. For two-particle cut reducible diagrams, our method allows for fast computations of Landau singularities beyond the current state-of-the-art, including examples relevant to two- and higher-loop massive Standard Model processes involving QCD and electroweak particles. If time permits, I will also briefly discuss ongoing work, addressing questions related to alpha-positivity and extensions to diagrams beyond two-particle cuts.
