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Longitudinal short-distance constraints for the hadronic light-by-light contribution to with large- Regge models
Gilberto Colangelo, Franziska Hagelstein, Martin Hoferichter +2
While the low-energy part of the hadronic light-by-light (HLbL) tensor can be constrained from data using dispersion relations, for a full evaluation of its contribution to the ano…
Short-distance constraints on hadronic light-by-light scattering in the anomalous magnetic moment of the muon
Gilberto Colangelo, Franziska Hagelstein, Martin Hoferichter +2
A key ingredient in the evaluation of hadronic light-by-light (HLbL) scattering in the anomalous magnetic moment of the muon concerns short-distance constraints (SDCs) th…
Three-pion contribution to hadronic vacuum polarization
Martin Hoferichter, Bai-Long Hoid, Bastian Kubis
We address the contribution of the channel to hadronic vacuum polarization (HVP) using a dispersive representation of the amplitude. This channel gives the seco…
Combined explanations of , and implications for a large muon EDM
Andreas Crivellin, Martin Hoferichter
We consider possible beyond-the-Standard-Model (BSM) effects that can accommodate both the long-standing tension in the anomalous magnetic moment of the muon, , as w…
Dispersion relations for : helicity amplitudes, subtractions, and anomalous thresholds
Martin Hoferichter, Peter Stoffer
We present a comprehensive analysis of the dispersion relations for the doubly-virtual process . Starting from the Bardeen-Tung-Tarrach amplitudes, we first derive the…
Dark-matter-nucleus scattering in chiral effective field theory
Martin Hoferichter, Philipp Klos, Javier Menéndez +1
Chiral effective field theory allows one to calculate the response of few-nucleon systems to external currents, both for currents that can be probed in the Standard Model and ones…