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Related papers: The Muon $g-2$ experiment at Fermilab

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The Muon g-2 experiment E989 at Fermilab measures the anomalous magnetic moment of the muon $a_\mu$ with improved precision compared to the Brookhaven (E821) experiments. The Brookhaven results are in tension with the Standard Model by more…

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

The Muon g-2 experiment at FERMILAB has confirmed the muon anomalous magnetic moment anomaly with an error bar 15% smaller and a different central value compared with the previous Brookhaven result. The combined results from FERMILAB and…

High Energy Physics - Phenomenology · Physics 2022-08-17 Giorgio Arcadi , Álvaro S. de Jesus , Téssio B. de Melo , Farinaldo S. Queiroz , Yoxara S. Villamizar

We propose a next-generation precision measurement of the muon anomalous magnetic moment (muon $g-2$), at the High Intensity Heavy-Ion Accelerator Facility (HIAF) in China. The project, named CANTON-$\mu$ (Coherent Anomalous magNetic momenT…

High Energy Physics - Experiment · Physics 2026-03-31 Ce Zhang , Yu Xu , On Kim , Bingzhi Li , Guodong Shen , Liangwen Chen , Fedor Ignatov , Liang Li , Qiang Li , Xueheng Zhang , Zhiyu Sun

The E989 Muon $g-2$ experiment at Fermilab aims to measure the anomalous magnetic moment, $a^{}_\mu$, of the muon with a precision of 140 parts-per-billion. This requires a precise measurement of both the anomalous spin precession…

Instrumentation and Detectors · Physics 2021-02-11 S. Corrodi , P. De Lurgio , D. Flay , J. Grange , R. Hong , D. Kawall , M. Oberling , S. Ramachandran , P. Winter

The anomalous magnetic moments of both positive and negative muons are measured to the precision of 0.7 parts per million. Two values are in good agreement. The standard model calculations of muon g-2 are under further studies, especially…

High Energy Physics - Experiment · Physics 2007-05-23 H. Deng , for Muon g-2 Collaboration

Now that the Fermilab muon $g-2$ experiment has released the results of its Run-1 data, which agrees with the results of the Brookhaven experiment, one can examine the potential of simple extensions to explain the combined $4.2\sigma$…

High Energy Physics - Phenomenology · Physics 2021-10-15 Peter Athron , Csaba Balázs , Douglas Jacob , Wojciech Kotlarski , Dominik Stöckinger , Hyejung Stöckinger-Kim

Soon, new experiments at FNAL and J-PARC will measure the muon anomalous magnetic moments with better accuracy than before. From theoretical side, the uncertainty of the standard model prediction is dominated by the hadronic contributions.…

High Energy Physics - Phenomenology · Physics 2016-11-23 A. E. Dorokhov , A. E. Radzhabov , A. S. Zhevlakov

A new measurement of the muon anomalous magnetic moment has been reported by the Fermilab Muon g-2 collaboration and shows a $4.2\sigma$ departure from the most precise and reliable calculation of this quantity in the Standard Model.…

High Energy Physics - Phenomenology · Physics 2022-01-17 Sebastian Baum , Marcela Carena , Nausheen R. Shah , Carlos E. M. Wagner

A review of the experimental and theoretical determinations of the anomalous magnetic moment of the muon is given. The anomaly is defined by a=(g-2)/2, where the Land\'e g-factor is the proportionality constant that relates the spin to the…

High Energy Physics - Phenomenology · Physics 2008-11-26 James P. Miller , Eduardo de Rafael , B. Lee Roberts

The muon anomalous magnetic moment measurement has, for more than a decade, been a long-standing anomaly hinting the physics beyond the Standard Model (BSM). The recently announced results from muon $g-2$ collaboration, corresponding to…

High Energy Physics - Phenomenology · Physics 2021-07-29 Vedran Brdar , Sudip Jana , Jisuke Kubo , Manfred Lindner

Recently, the Muon g-2 experiment at Fermilab has measured the muon anomalous magnetic dipole moment (MDM), $a_\mu=(g_\mu-2)/2$, which reported that the new experimental average increases the tension between experiment and the standard…

High Energy Physics - Phenomenology · Physics 2022-06-01 Hai-Bin Zhang , Chang-Xin Liu , Jin-Lei Yang , Tai-Fu Feng

The magnetic moment anomaly a_mu = (g_mu - 2) / 2 of the positive muon has been measured at the Brookhaven Alternating Gradient Synchrotron with an uncertainty of 0.7 ppm. The new result, based on data taken in 2000, agrees well with…

High Energy Physics - Experiment · Physics 2009-11-07 M. Deile

The Fermilab Muon $g-2$ experiment recently reported its first measurement of the anomalous magnetic moment $a_\mu^{\textrm{FNAL}}$, which is in full agreement with the previous BNL measurement and pushes the world average deviation $\Delta…

High Energy Physics - Phenomenology · Physics 2021-10-11 Peter Athron , Csaba Balázs , Douglas HJ Jacob , Wojciech Kotlarski , Dominik Stöckinger , Hyejung Stöckinger-Kim

This White Paper briefly reviews the present status of the muon (g-2) experiment and the physics motivation for a new effort. The present comparison between experiment and theory indicates a tantalizing $3.4 \sigma$ deviation. An…

High Energy Physics - Phenomenology · Physics 2007-06-01 David W. Hertzog , James P. Miller , Eduardo de Rafael , B. Lee Roberts , Dominik Stockinger

A summary is given of the present status of the theory and experiment of the anomalous magnetic moment of the muon. A difference between predicted and measured values is an indication of physics beyond the Standard Model. A new experimental…

High Energy Physics - Experiment · Physics 2009-06-23 J. P. Miller

The anomalous magnetic moment of the muon has been measured to 0.5 ppm in a series of precision experiments at the Brookhaven Alternating Gradient Synchrotron. The individual results for each sign: a(mu+)= 11 659 204(7)(5) E-10 and a(mu-) =…

High Energy Physics - Phenomenology · Physics 2007-05-23 Priscilla Cushman

We review the latest experimental achievements on the hadronic cross section measurements at low energy which are of fundamental importance for a precise evaluation of the hadronic contribution to the g-2 of the muon. We also discuss the…

High Energy Physics - Experiment · Physics 2015-06-04 G. Venanzoni

Fermilab is dedicated to hosting world-class experiments in search of new physics that will operate in the coming years. The Muon g-2 Experiment is one such experiment that will determine with unprecedented precision the muon anomalous…

The Muon Campus at Fermilab provides world class accelerator infrastructure supporting the next generation intensity frontier experiments. The anti-proton source from the Tevatron era was converted to the present day Muon Campus at the end…

Accelerator Physics · Physics 2022-08-08 S. Ganguly

The recently published result from the Fermilab "MUON G-2" experiment has confirmed the persistent 3-4 $\sigma$ discrepancy between the experimental result from BNL for the anomalous magnetic moment of the muon, $(g-2)_\mu$ , and its…

High Energy Physics - Phenomenology · Physics 2021-11-02 Manimala Chakraborti , Sven Heinemeyer , Ipsita Saha