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Anomalous magnetic moment of the muon in a dispersive approach
Vladyslav Pauk, Marc Vanderhaeghen
We present a new general dispersive formalism for evaluating the hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon. In the suggested appr…
Polarizability relations across real and virtual Compton scattering processes
Vladimir Pascalutsa, Marc Vanderhaeghen
We derive two relations involving spin polarizabilities of a spin-1/2 particle and consider their empirical implications for the proton. Using the empirical values of the proton an…
Subtracted dispersion relation formalism for the two-photon exchange correction to elastic electron-proton scattering: comparison with data
O. Tomalak, M. Vanderhaeghen
We apply a subtracted dispersion relation formalism with the aim to improve predictions for the two-photon exchange corrections to elastic electron-proton scattering observables at…
Hadronic contributions to the muon anomalous magnetic moment Workshop. : Quo vadis? Workshop. Mini proceedings
Maurice Benayoun, Johan Bijnens, Tom Blum +37
We present the mini-proceedings of the workshops Hadronic contributions to the muon anomalous magnetic moment: strategies for improvements of the accuracy of the theoretical predic…
Dispersive evaluation of the D-term form factor in deeply virtual Compton scattering
B. Pasquini, M. V. Polyakov, M. Vanderhaeghen
We present a dispersive representation of the D-term form factor for hard exclusive reactions, using unsubtracted -channel dispersion relations. The -channel unitarity relati…
Two-loop massive scalar three-point function in a dispersive approach
Vladyslav Pauk, Marc Vanderhaeghen
We present a dispersion relation formalism to calculate a massive scalar two-loop vertex function. Such calculation is of direct relevance in the evaluation of the hadronic light-b…