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Measurement of the muon magnetic anomaly aμ in the Muon g-2 experiment at Fermilab

2023/11/21 by M. Incagli, Incagli, Marco
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Instrumentation and Detectors (physics.ins-det) #Particle physics theoretical and experimental studies #Scientific Research and Discoveries

paper · pdf · doi:10.48550/arxiv.2311.12730

openalex publication_date 2023/11/21 · openalex created_date 2023/11/24 · openalex updated_date 2026/07/30

Abstract

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 aμ(\rm FNAL) = 116 592 040(54) × 10-11 ~ (0.46 ppm), combined with the previous experimental measurement, results in a discrepancy of (251 ± 59)× 10-11 with the theoretical prediction, corresponding to 4.2 ~σ. This note presents the first results, the current status and the future prospects of the Muon g-2 experiment at Fermilab.

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