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arXiv · 2306.16808

Data-driven determination of the light-quark connected component of the intermediate-window contribution to the muon $g-2$

Genessa Benton·Diogo Boito·Maarten Golterman·Alexander Keshavarzi·Kim Maltman·Santiago Peris
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Abstract

We present the first data-driven result for $a_\mu^{\rm win,lqc}$, the isospin-limit light-quark connected component of the intermediate-window Hadronic-Vacuum-Polarization contribution to the muon anomalous magnetic moment. Our result, $(198.8\pm 1.1)\times 10^{-10}$, is in significant tension with eight recent mutually compatible high-precision lattice-QCD determinations, and provides enhanced evidence for a puzzling discrepancy between lattice and data-driven determinations of the intermediate window quantity, one driven largely by a difference in the light-quark connected component.

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Genessa Benton, Diogo Boito, Maarten Golterman, Alexander Keshavarzi, Kim Maltman, Santiago Peris. 2023-06-29. Data-driven determination of the light-quark connected component of the intermediate-window contribution to the muon $g-2$. https://arxiv.org/abs/2306.16808

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