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Related papers: Muon $g-2$: A review

200 papers

A precise measurement of the anomalous g value, a_mu=(g-2)/2, for the positive muon has been made at the Brookhaven Alternating Gradient Synchrotron. The result a_mu^+=11 659 202(14)(6) X 10^{-10} (1.3 ppm) is in good agreement with…

High Energy Physics - Experiment · Physics 2009-09-25 H. N. Brown , Muon g-2 Collaboration

The past five years have brought significant new results on the muon magnetic anomaly, $a_\mu = (g_\mu - 2)/2$, and on the hadronic vacuum polarization (HVP) contribution dominating the uncertainty $\Delta a_\mu$. Serious tension has…

High Energy Physics - Phenomenology · Physics 2025-12-03 Dinko Pocanic

The magnetic moment is a fundamental property of particles. The measurement of these magnetic moments and the comparison with the values predicted by the standard model of particle physics is a way to test our understanding of the…

High Energy Physics - Experiment · Physics 2015-12-23 M. Eads

The ideas and formulas presented in the article will help to bring together the theoretical predictions for the anomalous magnetic moment of muon and the results of the "Muon g-2" experiment. In doing so, we are discussing the new effect…

High Energy Physics - Phenomenology · Physics 2021-09-30 Ara Ioannisian

In this note, we show how one can attribute the anomaly currently present in the measurement of the anomalous magnetic moment of the muon ($a_\mu$) to the presence of an underlying Aligned 2-Higgs Doublet Model (A2HDM) with Right-Handed…

High Energy Physics - Phenomenology · Physics 2022-01-25 Luigi Delle Rose , Shaaban Khalil , Stefano Moretti

The recent Fermilab measurement of the muon anomalous magnetic moment yields $4.2 \sigma$ deviations from the SM prediction when combined with the BNL E821 experiment results. In the Type-X two Higgs doublet model, we study the consequence…

High Energy Physics - Phenomenology · Physics 2021-11-24 Adil Jueid , Jinheung Kim , Soojin Lee , Jeonghyeon Song

In light of the upcoming measurement of the muon anomalous magnetic moment (g-2), we revisit the corrections to g-2 in the context of the $SU(4)_L \times U(1)_X$ gauge symmetry. We investigate three models based on this gauge symmetry and…

High Energy Physics - Phenomenology · Physics 2020-11-17 D. Cogollo , Yohan M. Oviedo-Torres , 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 long-standing difference between the experimental measurement and the standard-model prediction for the muon's anomalous magnetic moment, $a_{\mu} = (g_{\mu}-2)/2$, may be explained by the presence of new weakly interacting particles…

High Energy Physics - Phenomenology · Physics 2015-06-18 Ayres Freitas , Joseph Lykken , Stefan Kell , Susanne Westhoff

No gauge invariant regularization is available for the perturbative calculation of the standard model. One has to add finite counter terms to restore gauge symmetry for the renormalized amplitudes. The muon anomalous magnetic moment can be…

High Energy Physics - Phenomenology · Physics 2014-10-28 Er-Cheng Tsai

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 recent developments in theory and experiment related to the anomalous magnetic moment of the muon are applied to supersymmetry. We follow a very cautious course, demanding that the supersymmetric contributions fit within five standard…

High Energy Physics - Phenomenology · Physics 2009-11-07 Stephen P. Martin , James D. Wells

We present the final report from a series of precision measurements of the muon anomalous magnetic moment, a_mu = (g-2)/2. The details of the experimental method, apparatus, data taking, and analysis are summarized. Data obtained at…

High Energy Physics - Experiment · Physics 2012-08-27 Muon , Collaboration , : , G. W. Bennett

Recent results announced as measurements of the muon's anomalous magnetic moment are in fact measurements of the muon's anomalous spin precession frequency. This precession frequency receives contributions from both the muon's anomalous…

High Energy Physics - Phenomenology · Physics 2009-10-09 Jonathan L. Feng , Konstantin T. Matchev , Yael Shadmi

This White Paper briefly reviews the present status of the muon (g-2) Standard-Model prediction. This value results in a 3 - 4 standard-deviation difference with the experimental result from Brookhaven E821. The present experimental…

High Energy Physics - Phenomenology · Physics 2013-11-12 Thomas Blum , Achim Denig , Ivan Logashenko , Eduardo de Rafael , B. Lee Roberts , Thomas Teubner , Graziano Venanzoni

A review of the theoretical and experimental values for the charged lepton (electron and muon) anomalous magnetic moment $a_l= (g_l-2)/2$ is presented. Employing the most accurate value for the fine structure constant $\alpha^{-1}=…

High Energy Physics - Phenomenology · Physics 2007-05-23 Alexander Studenikin

The muon's magnetic moment is a fundamental quantity in particle physics and the deviation of its value from quantum electrodynamics (QED), motivates research beyond the standard models (SM). In this study, we utilize the effective coupling…

High Energy Physics - Phenomenology · Physics 2025-11-26 Iman Motie , S. Mahmoudi , Mahdi Sadegh , Jafar Khodagholizadeh , Alain Blanchard , She-Sheng Xue

The Muon g-2 experiment at Fermilab, with the aim to measure the muon anomalous magnetic moment to an unprecedented level of 140~ppb, has started beam and detector commissioning in Summer 2017. To deal with incoming data projected to be…

Instrumentation and Detectors · Physics 2019-08-14 Kim Siang Khaw

The muon anomalous magnetic moment measurement, when compared with theory, can be used to test many extensions to the standard model. The most recent measurement made by the Brookhaven E821 Collaboration reduces the uncertainty on the world…

Nuclear Experiment · Physics 2009-11-10 David W. Hertzog

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. The most recent measurement, performed at Brookhaven National Laboratory and completed…

Instrumentation and Detectors · Physics 2016-01-20 Wesley Gohn
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