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Hadronic light-by-light contribution to (g−2)μ : a dispersive approach
In this talk I will describe recent progress in approaching the calculation of the hadronic light-by-light contribution with dispersive methods.
I will discuss general properties of the four-point function of the electromagnetic current in QCD, its Lorentz decomposition and dispersive representation.
Based on these I will then present our numerical estimate for the pion box contribution and its rescattering corrections.
I will conclude with an outlook for this approach to the calculation of hadronic light-by-light.
Gilberto Colangelo
Institute for Theoretical Physics, University of Bern
04/10/2018 à 11:00
IPN Orsay, salle A015, bâtiment 100



Institut de Physique Nucléaire Orsay - 15 rue Georges CLEMENCEAU - 91406 ORSAY (FRANCE)
UMR 8608 - CNRS/IN2P3

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