Speaker
Robert Valentin Harlander
(Rheinisch Westfaelische Tech. Hoch. (DE))
Description
We describe the systematic treatment of the gradient flow at higher orders in perturbation theory and its application within the small flow-time expansion. The results include the coefficients of the gradient-flow definition of the energy-momentum tensor, the quark and the gluon condensates, as well as the hadronic vacuum polarization at next-to-next-to-leading order in the strong coupling. Combined with suitable lattice calculations, these results allow for independent approaches to various phenomenological problems of low-energy QCD.
Primary author
Robert Valentin Harlander
(Rheinisch Westfaelische Tech. Hoch. (DE))
