2 papers
hep-ph2026
Recurrence Relations and Dispersive Techniques for Precision Multi-Loop Calculations
A. Aleksejevs, S. Barkanova, A. I. Davydychev
Ab initio predictions of two-loop electroweak contributions to observables are increasingly essential for precision collider experiments, yet their evaluation remains very challeng…
hep-ph2026
Factorizing two-loop vacuum sum-integrals
Andrei I. Davydychev, Pablo Navarrete, York Schröder
We derive analytic results for scalar massless bosonic vacuum sum-integrals at two loops. Building upon a recent factorization proof of massive two-loop vacuum integrals, we are ab…