6 papers
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…
production at the LHC within SMEFT at next-to-next-to-leading order QCD
Marco Bonetti, Robert V. Harlander, Dmitrii Korneev +4
We study the impact of and interactions, originating from dimension-six operators of the Standard Model Effective Field Theory (SMEFT), on the Higgs bo…
FeynGame 3.0
L. Bündgen, R. V. Harlander, S. Y. Klein +1
A major update of the program FeynGame is introduced. One of its main new functionalities is to visualize Feynman graphs generated by QGRAF. The QGRAF output can be either pasted i…
The gradient flow at higher orders in perturbation theory
Robert Harlander
Various results for higher-order perturbative calculations in the gradient-flow formalism are reviewed, including the gradient-flow beta function and the small-flow-time expansion…
Short-flow-time expansion of quark bilinears through next-to-next-to-leading order QCD
Janosch Borgulat, Robert V. Harlander, Jonas T. Kohnen +1
The gradient-flow formalism proves to be a useful tool in lattice calculations of quantum chromodynamics. For example, it can be used as a scheme to renormalize composite operators…
ftint: Calculating gradient-flow integrals with pySecDec
Robert V. Harlander, Theodoros Nellopoulos, Anton Olsson +1
The program ftint is introduced which numerically evaluates dimensionally regulated integrals as they occur in the perturbative approach to the gradient-flow formalism in quantum f…