The hadronic light-by-light contribution to the muon anomalous magnetic moment and renormalization group for EFT

Abstract

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.

6 pages, Invited talk presented by JB at MESON2012 - 12th International Workshop on Meson Production, Properties and Interaction, Krakow, Poland, 31 May -- 5 June 2012

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