The anomalous magnetic moment of the muon: status and perspectives

Fuente: arXiv
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Main Authors: Hertzog, David W., Hoferichter, Martin
Format: Preprint
Published: 2025
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author Hertzog, David W.
Hoferichter, Martin
author_facet Hertzog, David W.
Hoferichter, Martin
contents We review the status of the anomalous magnetic moment of the muon as a precision probe of physics beyond the Standard Model (SM) after the release of the final results from the Fermi National Accelerator Laboratory (FNAL) Muon $g-2$ experiment and the second White Paper of the Muon $g-2$ Theory Initiative. While the SM prediction requires further improvements by a factor of four to fully leverage the sensitivity achieved in experiment, the FNAL measurement will set the standard for many years to come, and we discuss a variety of features of the experimental campaign that made this achievement possible. In going forward, we discuss current efforts to improve the SM prediction, and imagine how an experiment would have to be devised to surpass 124 ppb in precision.
format Preprint
id arxiv_https___arxiv_org_abs_2512_16980
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The anomalous magnetic moment of the muon: status and perspectives
Hertzog, David W.
Hoferichter, Martin
High Energy Physics - Phenomenology
High Energy Physics - Experiment
High Energy Physics - Lattice
Nuclear Experiment
Nuclear Theory
We review the status of the anomalous magnetic moment of the muon as a precision probe of physics beyond the Standard Model (SM) after the release of the final results from the Fermi National Accelerator Laboratory (FNAL) Muon $g-2$ experiment and the second White Paper of the Muon $g-2$ Theory Initiative. While the SM prediction requires further improvements by a factor of four to fully leverage the sensitivity achieved in experiment, the FNAL measurement will set the standard for many years to come, and we discuss a variety of features of the experimental campaign that made this achievement possible. In going forward, we discuss current efforts to improve the SM prediction, and imagine how an experiment would have to be devised to surpass 124 ppb in precision.
title The anomalous magnetic moment of the muon: status and perspectives
topic High Energy Physics - Phenomenology
High Energy Physics - Experiment
High Energy Physics - Lattice
Nuclear Experiment
Nuclear Theory
url https://arxiv.org/abs/2512.16980