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Dispersion relation for hadronic light-by-light scattering: and poles
Simon Holz, Martin Hoferichter, Bai-Long Hoid +1
The pseudoscalar-pole contributions to hadronic light-by-light scattering are determined by the respective transition form factors (TFFs) into two virtual photons. These TFFs const…
Ab initio calculations of overlap integrals for conversion in nuclei
Matthias Heinz, Martin Hoferichter, Takayuki Miyagi +2
The rate for conversion in nuclei is set to provide the most stringent test of lepton-flavor symmetry and a window into physics beyond the Standard Model. However, to dise…
Complete dispersive evaluation of the hadronic light-by-light contribution to muon
Martin Hoferichter, Peter Stoffer, Maximilian Zillinger
Hadronic light-by-light (HLbL) scattering defines one of the critical contributions in the Standard-Model prediction of the anomalous magnetic moment of the muon. In this Letter, w…
Dispersion relation for hadronic light-by-light scattering: subleading contributions
Martin Hoferichter, Peter Stoffer, Maximilian Zillinger
In this work, we present an evaluation of subleading effects in the hadronic light-by-light contribution to the anomalous magnetic moment of the muon. Using a recently derived opti…
Precision evaluation of the - and -pole contributions to hadronic light-by-light scattering in the anomalous magnetic moment of the muon
Simon Holz, Martin Hoferichter, Bai-Long Hoid +1
Next to the pole, and intermediate states give rise to the leading singularities of the hadronic light-by-light tensor, resulting in sizable contributions to the ano…
On the scalar form factor beyond the elastic region
Frederic Noël, Leon von Detten, Christoph Hanhart +2
Pion-kaon () final states, often appearing in heavy-particle decays at the precision frontier, are important for Standard-Model tests, to describe crossed channels with exotic…