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Related papers: New results from the Muon g-2 Experiment

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The Muon g-2 experiment at Fermilab seeks to measure the muon magnetic moment anomaly, $a_\mu =(g-2)/2$, with a final target precision of 0.14 parts-per-million (ppm). The experiment's initial result, published in 2021 using Run 1 data from…

High Energy Physics - Experiment · Physics 2025-06-27 Estifa'a Zaid

The current $\sim3.5\sigma$ discrepancy between the experimental measurement and theoretical prediction of the muon magnetic anomaly, $a_{\mu}$, stands as a potential indication of the existence of new physics. The Muon $g-2$ experiment at…

High Energy Physics - Experiment · Physics 2019-07-24 Alexander Keshavarzi

The muon anomalous magnetic moment, $a_\mu = (g-2)/2$, is a low-energy observable which can be both measured and computed with very high precision, making it an excellent test of the Standard Model (SM) and a sensitive probe of new physics.…

High Energy Physics - Experiment · Physics 2022-07-20 Paolo Girotti

There is a long standing discrepancy between the Standard Model prediction for the muon g-2 and the value measured by the Brookhaven E821 Experiment. At present the discrepancy stands at about three standard deviations, with a comparable…

Instrumentation and Detectors · Physics 2019-08-14 Graziano Venanzoni

A new experiment at Fermilab will measure the anomalous magnetic moment of the muon with a precision of 140 parts per billion (ppb). This measurement is motivated by the results of the Brookhaven E821 experiment that were first released…

Instrumentation and Detectors · Physics 2015-10-02 Frederick Gray

A new measurement of the anomalous magnetic moment of the muon, $a_{\mu} \equiv (g-2)/2$, will be performed at the Fermi National Accelerator Laboratory with data taking beginning in 2017. The most recent measurement, performed at…

High Energy Physics - Experiment · Physics 2016-11-16 W. Gohn

Precision measurements of fundamental quantities have played a key role in pointing the way forward in developing our understanding of the universe. Though the enormously successful Standard Model (SM) describes the breadth of both…

High Energy Physics - Experiment · Physics 2019-08-14 J. Grange

The status of the muon (g-2) experiment at the Brookhaven AGS is reviewed. An accuracy of 1.3 ppm on the mu^+ anomalous magnetic moment has been achieved and published. This result differs with the standard model prediction by about 2.5…

High Energy Physics - Experiment · Physics 2007-05-23 B. Lee Roberts , H. N. Brown

The muon (g-2) experiment E821 at the Brookhaven National Laboratory has achieved a relative precision of $\pm 0.5$ parts per million. A new experiment, E969, with scientific approval but not yet funded, aims to improve this to $\pm 0.2$…

High Energy Physics - Experiment · Physics 2009-11-11 B. Lee Roberts , representing the E821 , E969 Collaborations

The upcoming muon (g-2) experiment at Fermilab will measure the anomalous magnetic moment of the muon to a relative precision of 140 ppb, 4 times better than the previous experiment at BNL. The new experiment is motivated by the persistent…

Instrumentation and Detectors · Physics 2015-04-07 J. Kaspar

This paper will cover the physics and methods behind Fermilab's Muon g-2 Experiment, along with the long-awaited results from Run-1. The experiment was undertaken to resolve the tension between the Standard Model and the previous…

High Energy Physics - Experiment · Physics 2022-02-24 Alexander Tewsley-Booth

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…

High Energy Physics - Experiment · Physics 2023-11-22 Marco Incagli

The E989 Muon $g-2$ Experiment at Fermilab aims to measure the muon magnetic anomaly, $a_\mu$, to an unprecedented precision of 140 parts per billion (ppb), representing a four-fold improvement over the current best measurement, achieved at…

High Energy Physics - Experiment · Physics 2019-05-15 A. T. Fienberg

This article reviews the muon g-2 experiment, a cornerstone in precision tests of the Standard Model of particle physics. The experiment measures the anomalous magnetic moment of the muon with unprecedented accuracy, seeking potential…

High Energy Physics - Experiment · Physics 2025-08-06 Marin Karuza

Two next generation muon $g-2$ experiments at Fermilab in the US and at J-PARC in Japan have been designed to reach a four times better precision from 0.54 ppm to 0.14 ppm and the challenge for the theory side is to keep up in precision as…

High Energy Physics - Phenomenology · Physics 2018-08-01 Fred Jegerlehner

The Muon g-2 experiment at Fermilab will measure the anomalous magnetic moment of the muon to a precision of 140 parts per billion, which is a factor of four improvement over the previous E821 measurement at Brookhaven. The experiment will…

High Energy Physics - Experiment · Physics 2018-07-01 J. L. Holzbauer

The anomalous magnetic moment (g-2) of the muon was measured with a precision of 0.54 ppm in Experiment 821 at Brookhaven National Laboratory. A difference of 3.2 standard deviations between this experimental value and the prediction of the…

Nuclear Experiment · Physics 2019-08-15 Frederick Gray

The $g-2$ experiment successfully completed its second data taking period (Run-2) between March and July 2019, with the analysis of Run-1 and Run-2 data currently proceeding. The final goal of the experiment is to determine the muon…

Instrumentation and Detectors · Physics 2019-10-02 Gleb Lukicov

The Fermilab Muon $g-2$ experiment is currently preparing for its fourth data-taking period (Run-4). The experiment-wide effort on the analysis of Run-1 data is nearing completion, with the announcement of the first result expected in the…

Instrumentation and Detectors · Physics 2020-12-08 Gleb Lukicov

A new measurement of the anomalous magnetic moment of the muon, $a_{\mu} \equiv (g-2)/2$, will be performed at the Fermi National Accelerator Laboratory with data taking beginning in 2017. The most recent measurement, performed at…

High Energy Physics - Experiment · Physics 2018-01-03 Wesley Gohn
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