The muon g−2 within the Standard Model

Hoferichter, M. and Colangelo, G. and Stoffer, P. (2024) The muon g−2 within the Standard Model. Il nuovo cimento C, 47 (1). pp. 1-10. ISSN 1826-9885

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Abstract

We summarize recent developments in the Standard-Model evaluation of the anomalous magnetic moment of the muon aμ, both in the hadronic-lightby-light and hadronic-vacuum-polarization contributions. The current situation for the latter is puzzling as we are confronted with multiple discrepancies that are not yet understood. We present updated fits of a dispersive representation of the pion vector form factor to the new CMD-3 data set and quantify the tensions with the other high-statistics e+e− → π+π− experiments in the contribution to aμ in the energy range up to 1 GeV, as well as in the corresponding contribution to the intermediate Euclidean window.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 11 Dec 2023 02:57
Last Modified: 11 Dec 2023 02:57
URI: http://eprints.bice.rm.cnr.it/id/eprint/22548

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