Sebastian Mizera - Landau Singularities Revisited

31 May 2023, 09:00
30m
Drawing Room

Drawing Room

Speaker

Sebastian Mizera (Perimeter Institute for Theoretical Physics)

Description

Landau analysis aims to predict the singularity structure of Feynman integrals without their explicit evaluation. We point out a number of errors in its textbook formulation that prevented applications to the Standard Model processes in the past. After resolving these issues, we use a combination of tropical analysis and numerical algebraic geometry to implement an algorithm that classifies and consistently finds all possible singularities of multi-loop Feynman integrals.

Presentation materials