3 papers
hep-ph2026
Four-loop QCD mixing of current-current operators
Joachim Brod, Emmanuel Stamou, Tom Steudtner
We calculate the anomalous dimension of the current-current operators of the weak effective Lagrangian at next-to-next-to-next-to-leading order (NNNLO) in QCD. This cons…
hep-th2025
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 $…
cond-mat.str-el2025
Quantum multicriticality and emergent symmetry in Dirac systems with two order parameters at three-loop order
Max Uetrecht, Igor F. Herbut, Michael M. Scherer +2
Two-dimensional materials with interacting Dirac excitations can host quantum multicritical behavior near the phase boundaries of the semimetallic and two-ordered phases. We study…