Short-distance constraints on the hadronic light-by-light
Abstract
The muon anomalous magnetic moment continues to attract interest due to the potential tension between experimental measurement [1,2] and the Standard Model prediction [3]. The hadronic light-by-light contribution to the magnetic moment is one of the two diagrammatic topologies currently saturating the theoretical uncertainty. With the aim of improving precision on the hadronic light-by-light in a data-driven approach founded on dispersion theory [4,5], we derive various short-distance constraints of the underlying correlation function of four electromagnetic currents. Here, we present our previous progress in the purely short-distance regime and current efforts in the so-called Melnikov-Vainshtein limit.
Keywords
Cite
@article{arxiv.2211.04068,
title = {Short-distance constraints on the hadronic light-by-light},
author = {Johan Bijnens and Nils Hermansson-Truedsson and Antonio Rodríguez-Sánchez},
journal= {arXiv preprint arXiv:2211.04068},
year = {2023}
}
Comments
Proceedings for "The XVth Quark Confinement and the Hadron Spectrum conference", Stavanger, Norway, August 2022