Dispersion relation for hadronic light-by-light scattering: η and η ′ poles

Abstract 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 constitute complicated functions of the photon virtualities that, in turn, can be reconstructed in a dispersive appr...

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Bibliographic Details
Main Authors: Simon Holz, Martin Hoferichter, Bai-Long Hoid, Bastian Kubis
Format: Article
Language:English
Published: SpringerOpen 2025-04-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP04(2025)147
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