Measurement of the Muon Magnetic Anomaly $$\boldsymbol{a}_{\boldsymbol{\mu}}$$ in the Muon $$\boldsymbol{g-2}$$ Experiment at Fermilab

Conference · Fri Sep 09 00:00:00 EDT 2022 · Moscow Univ.Phys.Bull.

DOI:https://doi.org/10.3103/S0027134922020448· OSTI ID:2228304

Incagli, Marco  ^[1]

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1. INFN, Pisa

The Fermilab Muon g-2 experiment measures the muon anomalous magnetic moment with high precision. Together with recent improvements on the theory front, the first results of the experiment confirm the long-standing discrepancy between the experimental measurements and the Standard Model predictions. The observed value of $$a_{\mu}({\textrm{FNAL}})=116\,592\,040(54)\times 10^{-11}(\text{0.46 ppm})$$, combined with the previous experimental measurement, results in a discrepancy of $$(251\pm 59)\times 10^{-11}$$ with the theoretical prediction, corresponding to $$4.2\sigma$$. This note presents the first results, the current status and the future prospects of the Muon $g-2$ experiment at Fermilab.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Contributing Organization: Muon g-2 Fermilab E989
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 2228304
• Report Number(s): FERMILAB-CONF-23-637-V; arXiv:2311.12730; oai:inspirehep.net:2149873
• Journal Information: Moscow Univ.Phys.Bull., Vol. 77, Issue 2
• Country of Publication: United States
• Language: English

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