PoS - Proceedings of Science
Volume 380 - Particles and Nuclei International Conference 2021 (PANIC2021) - Tests of symmetries and conservation laws
Short-distance constraints in hadronic-light-by-light for the muon $g-2$
J. Bijnens*, N. Hermansson-Truedsson and A. Rodriguez Sanchez
Full text: pdf
Pre-published on: March 02, 2022
Published on: May 24, 2022
In this talk recent progress in studying the short-distance properties of the hadronic light-by-light contribution to the muon $g-2$ is described. The intermediate and short-distance part is a major contributor to the error of the theoretical prediction as described in the recent white paper \cite{Aoyama:2020ynm}. We have shown that the massless quark-loop is the first term in a systematic expansion at short-distances, a result already used in the white paper. Newer results conclude that both nonperturbative and perturbative corrections are under control. The talk describes these developments and how they fit in the total theoretical prediction for the muon $g-2$.
DOI: https://doi.org/10.22323/1.380.0423
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