3 papers
hep-th2026
General Four-Loop Beta Function for Scalar-Fermion Theories in Three Dimensions
York Schröder, Emmanuel Stamou, Tom Steudtner +1
We present general four-loop template -functions and anomalous field dimensions for renormalisable scalar-fermion theories in three dimensions. By imposing and…
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…
hep-ph2026
A new method for taming tensor sum-integrals
Ioan Ghisoiu, York Schröder
We report on the computation of a class of massless bosonic three-loop vacuum sum-integrals which are key building blocks for an evaluation of the Debye screening mass in hot QCD.…