Speaker
Johan Henriksson
(CERN)
Description
Anomalous dimensions of composite operators determine the running of the corresponding couplings in a general QFT/EFT. They also provide a perturbative estimate of the spectrum of interacting conformal field theories (CFTs) at fixed-points of the RG flow. The latter application motivates the computation of anomalous dimensions of composite operators with growing number of field and derivative insertions, transforming in arbitrary representation of global and Lorentz symmetry. I will explain the relevance of these results in CFT, and how this computation can be executed at multi-loop order using the primary basis (suitable for both EFT and CFT applications) and the background field method.
Author
Johan Henriksson
(CERN)
Co-authors
Guilherme Guedes
Jasper Roosmale Nepveu
(National Taiwan University)
Stefanos Robert Kousvos
(University of Torino and INFN Torino)