Abstract

We summarize our results for hadronic contributions to the anomalous magnetic moment of the muon (\$a\_\mu\$), the one from hadronic vacuum-polarisation (HVP) and the light-by-light scattering contribution (LBL), obtained from the Dyson-Schwinger equations (DSE's) of QCD. In the case of HVP we find good agreement with model independent determinations from dispersion relations for \$a\_\mu^HVP\$ as well as for the Adler function with deviations well below the ten percent level. From this we conclude that the DSE approach should be capable of describing \$a\_\mu^LBL\$ with similar accuracy. We also present results for LBL using a resonance expansion of the quark anti-quark T-matrix. Our preliminary value is \$a\_\mu^LBL=(217 91) \times 10^-11\$.

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