The first measurement of the muon anomalous magnetic moment from the Fermilab Muon g−2 collaboration
Keywords:muons, magnetic moment, accelerators and storage rings, precision measurements
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 measurement taken at Brookhaven National Laboratory. The measured value of the muon magnetic anomaly is aµ(FNAL) = 116592040(54) × 10−11. This result is in good agreement with Brookhaven’s previous measurement. The new world average, aµ(Exp) = 116592061(41) × 10−11, shows a difference from the theoretical value of the Standard Model (SM), aµ(SM) = 116591810(43) × 10−11, of 4.2 standard deviations, strongly hinting at physics beyond the Standard Model. The experiment requires the simultaneous measurement of the muon precession frequency, the magnetic field, and the muons’ distribution in the field. All three of these measurements will be discussed in context, along with the main systematic corrections and uncertainties.
B. Abi et. al., Phys. Rev. Lett. 126, 14 (2021).
T. Albahri et. al., Phys. Rev. D 103, 7 (2021).
T. Albahri et. al., Phys. Rev. A 103, 4 (2021).
T. Albahri et. al., Phys. Rev. Accel. Beams 24, 4 (2021).
G. Bennett et. al., Phys. Rev. D 73, 7 (2006).
J. D. Jackson. Classical Electrodynamics, Third Edition. Wiley (1998).
T. Aoyama et. al., Phys. Reports, 887, (2020).
B. Roberts, SciPost Phys. Proc., Proc. 15th Intl Workshop on Tau Lepton Physics (2018).
M. Farooq et. al., Phys. Rev. Lett. 124, 22, (2020).
How to Cite
Copyright (c) 2022 Booth Tewsley-Booth (Author)
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Authors retain copyright and grant the Suplemento de la Revista Mexicana de Física right of first publication with the work simultaneously licensed under a CC BY-NC-ND 4.0 that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.