A complete dispersive evaluation of hadronic light-by-light scattering
A complete dispersive evaluation of hadronic light-by-light scattering
Hadronic light-by-light scattering (HLbL) defines one of the critical contributions in the Standard-Model prediction of the anomalous magnetic moment of the muon. In this work, we present a complete evaluation using a dispersive formalism, in which the HLbL tensor is reconstructed from its discontinuities, expressed in terms of simpler hadronic …