3 papers
hep-th2026
Smooth Threshold Effects from Dimensional Regularization
Yannick Kluth
We suggest a non-minimal renormalization scheme based on dimensional regularization that naturally incorporates threshold effects of heavy particles. By renormalizing couplings and…
hep-th2026
The perturbative Ricci flow in gravity
Robert V. Harlander, Yannick Kluth, Jonas T. Kohnen +1
We develop a perturbative formulation of the Ricci flow in gravity. Following steps analogous to the gradient flow in QCD, we supplement the usual Feynman rules for perturbative gr…
hep-lat2025
The two-loop energy-momentum tensor within the gradient-flow formalism
Robert V. Harlander, Yannick Kluth, Fabian Lange
The gradient-flow formulation of the energy-momentum tensor of QCD is extended to NNLO perturbation theory. This means that the Wilson coefficients which multiply the flowed operat…