Johan Bijnens, Mehran Zahiri Abyaneh
The hadronic light-by-light contribution to the muon anomalous magnetic moment and renormalization group for EFT


We give a short overview of the theory of the muon anomalous magnetic moment with emphasis on the hadronic light-by-light and the pion loop contribution. We explain the difference between the hidden local symmetry and full VMD pion loop and discuss leading logarithms in the anomalous sector of 2-flavour chiral perturbation theory.

LU TP 12-32