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The very precise measurement of the anomalous magnetic moment of the muon, recently released by the Muon g-2 experiment at Fermilab, can serve to set stringent constraints on new particles. If the observed 4$\sigma$ discrepancy from the…

高能物理 - 唯象学 · 物理学 2021-12-24 J. C. Criado , A. Djouadi , N. Koivunen , K. Müürsepp , M. Raidal , H. Veermäe

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…

高能物理 - 实验 · 物理学 2018-01-03 Wesley Gohn

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…

高能物理 - 实验 · 物理学 2016-11-16 W. Gohn

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…

高能物理 - 唯象学 · 物理学 2008-11-26 James P. Miller , Eduardo de Rafael , B. Lee Roberts

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…

高能物理 - 实验 · 物理学 2022-02-24 Alexander Tewsley-Booth

QED, Hadronic, and Electroweak Standard Model contributions to the muon anomalous magnetic moment, a_mu = (g_mu-2)/2, and their theoretical uncertainties are scrutinized. The status and implications of the recently reported 2.6 sigma…

高能物理 - 唯象学 · 物理学 2009-11-07 Andrzej Czarnecki , William J. Marciano

We present a summary of the results of two recent precise calculations of the muon anomalous magnetic moment ($g_{\mu}-2$) and the electromagnetic coupling on the $Z$ ($\bar{\alpha}_{\rm Q.E.D.}(M^2_{Z})$). The main sources of uncertainty…

高能物理 - 唯象学 · 物理学 2007-05-23 J. F. de Trocóniz , F. J. Ynduráin

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.…

高能物理 - 实验 · 物理学 2022-07-20 Paolo Girotti

The new experiment data of muon g-2 is reported by the workers at Fermilab National Accelerator Laboratory(FNAL). Combined with the previous Brookhaven National Laboratory(BNL) E821 result, the departure from the standard model prediction…

高能物理 - 唯象学 · 物理学 2022-04-13 Shu-Min Zhao , Lu-Hao Su , Xing-Xing Dong , Tong-Tong Wang , Tai-Fu Feng

We review the role of the anomalous magnetic moment of the muon a_\mu as a powerful probe of physics beyond the Standard Model (BSM), taking advantage of the final result of the Fermilab g-2 experiment and the recently updated Standard…

高能物理 - 唯象学 · 物理学 2026-02-27 Peter Athron , Kilian Möhling , Dominik Stöckinger , Hyejung Stöckinger-Kim

This note is a pedagogical mini review on the muon anomalous magnetic moment ($g-2$), translated and adapted from our article published in Modern Physics 4 (2021) 40-47. The contents include: (i) The magnetic moment of an electric-current…

高能物理 - 唯象学 · 物理学 2021-10-20 Song Li , Yang Xiao , Jin Min Yang

The Muon (g-2) Experiment (E821) at Brookhaven National Laboratory (BNL) has measured the anomalous magnetic moment of the positive muon to an unprecedented precision of 1.3 parts per million. The result, a_{\mu^+} = (g-2)/2 = 11 659…

高能物理 - 实验 · 物理学 2012-08-27 2 Collaboration , O. Rind

Recent results of two interesting classes of supersymmetric two-loop contributions to (g-2)_mu are presented. Two-loop diagrams involving a closed sfermion loop can amount to 5*10^{-10} or almost one standard deviation of the current…

高能物理 - 唯象学 · 物理学 2009-11-10 Dominik Stöckinger

The muon (g-2) experiment at BNL has completed four data runs for the positive muon, beginning in 1997 and has just finished its first run for the negative muon. Recently the analysis of a 1.3 ppm result based on the 1999 run was completed…

高能物理 - 实验 · 物理学 2007-05-23 Gerco Onderwater

We investigate the use of effective Lagrangians to describe the effects on high-precision observables of physics beyond the Standard Model. Using the anomalous magnetic moment of the muon as an example, we detail the use of effective…

高能物理 - 唯象学 · 物理学 2011-07-19 C. Arzt , M. B. Einhorn , J. Wudka

Extensions of the Standard Model featuring excited fermions present an interesting framework that motivates the search for exotic particles at the LHC. Additionally, these extensions offer potential explanations for the muon's anomalous…

高能物理 - 唯象学 · 物理学 2025-01-27 Muhammad Rehman , Haji Muhammad , Orlando Panella , Mario E. Gomez

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…

仪器与探测器 · 物理学 2017-01-04 J. L. Holzbauer

The longstanding discrepancy between the measured and the predicted values of the anomalous magnetic moment of the muon, $a_\mu = (g-2)/2$, is one of the most intriguing potential hints of new physics in particle physics. After a brief…

高能物理 - 唯象学 · 物理学 2023-01-18 Bogdan Malaescu

The muon g-2 experiment at Brookhaven has been taking data since 1997. Analyses of the data taken in 1997 and 1998, which include about 2% of the data taken so far, have improved the experimental accuracy in the muon anomalous magnetic…

高能物理 - 实验 · 物理学 2007-05-23 R. Prigl , Muon g-2 Collaboration

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…

高能物理 - 实验 · 物理学 2018-07-01 J. L. Holzbauer