Reconstructing Landau Singularities over Finite Fields

by Giulio Crisanti (University of Edinburgh)

Tuesday 3 Feb 2026, 11:00 → 13:00 Europe/Berlin

PH 3344, (5101.01.344) (TUM, Physics Department, Garching)

We present a new method to find the branch structure of Euler/Mellin integrals using methods from algebraic geometry combined with finite fields arithmetic. When applied to the study of Feynman integrals, these branch points are the Landau singularities of the amplitude. We apply these methods to physically relevant diagrams out of reach of current technology.

munich_presentation_split.pdf