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相关论文: Combined explanations of $(g-2)_\mu$, $(g-2)_e$ an…

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With the long-standing tension between experiment and Standard-Model (SM) prediction in the anomalous magnetic moment of the muon, $a_\mu=(g-2)_\mu/2$, at the level of 3-4$\sigma$, it is natural to ask if there could be a sizable effect in…

高能物理 - 唯象学 · 物理学 2018-12-12 Andreas Crivellin , Martin Hoferichter , Philipp Schmidt-Wellenburg

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…

高能物理 - 唯象学 · 物理学 2022-06-01 Hai-Bin Zhang , Chang-Xin Liu , Jin-Lei Yang , Tai-Fu Feng

The theoretical predictions in the standard model (SM) and measurements on the anomalous magnetic dipole moments (MDM) of muon and electron have great precision, hence the MDMs of muon and electron have close relation with the new physics…

高能物理 - 唯象学 · 物理学 2020-04-10 Jin-Lei Yang , Tai-Fu Feng , Hai-Bin Zhang

The $\mu\nu$SSM is a highly predictive alternative model to the MSSM. In particular, the electroweak sector of the model can explain the longstanding discrepancy between the experimental result for the anomalous magnetic moment of the muon,…

高能物理 - 唯象学 · 物理学 2021-09-29 Sven Heinemeyer , Essodjolo Kpatcha , Iñaki Lara , Daniel E. López-Fogliani , Carlos Muñoz , Natsumi Nagata

We explore a model of dark matter (DM) that can explain the reported discrepancy in the muon anomalous magnetic moment and predict a large electric dipole moment (EDM) of the muon. The model contains a DM fermion and new scalars whose…

高能物理 - 唯象学 · 物理学 2023-03-01 Kim Siang Khaw , Yuichiro Nakai , Ryosuke Sato , Yoshihiro Shigekami , Zhihao Zhang

The muon magnetic anomaly, $a_{\mu}=(g_{\mu}-2)/2$, plays a special role in the history of the Standard Model (SM). Precise calculations and measurements of this fundamental quantity provide a stringent test of the SM and a window to the…

高能物理 - 实验 · 物理学 2025-06-17 Alex Keshavarzi , Kim Siang Khaw , Tamaki Yoshioka

With the long-standing tension between experiment and Standard-Model (SM) prediction in the anomalous magnetic moment of the muon $a_\mu$ recently reaffirmed by the Fermilab experiment, the crucial question becomes which other observables…

高能物理 - 唯象学 · 物理学 2022-09-27 Andreas Crivellin , Martin Hoferichter

We examine the prospects for discovering new physics through muon dipole moments. The current deviation in $g_{\mu}-2$ may be due entirely to the muon's {\em electric} dipole moment. We note that the precession frequency in the proposed BNL…

高能物理 - 唯象学 · 物理学 2009-10-09 Jonathan L. Feng , Konstantin T. Matchev , Yael Shadmi

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

We study the electric dipole moment (EDM) and the anomalous magnetic dipole moment (MDM) of the muon in the CP-violating Minimal Supersymmetric extension of the Standard Model (MSSM). We take into account the contributions from the…

高能物理 - 唯象学 · 物理学 2009-11-19 Kingman Cheung , Otto C. W. Kong , Jae Sik Lee

This paper introduces a new approach to measure the muon magnetic moment anomaly $a_{\mu} = (g-2)/2$, and the muon electric dipole moment (EDM) $d_{\mu}$ at the J-PARC muon facility. The goal of our experiment is to measure $a_{\mu}$ and…

The current experimental values of anomalous magnetic moments of muon and electron deviate from the Standard Model predictions by few standard deviations, which might be a hint of new physics. The sizes and signs of these deviations are…

高能物理 - 唯象学 · 物理学 2019-10-23 Marcin Badziak , Kazuki Sakurai

The stringent experimental bound on $\mu \rightarrow e \gamma$ is compatible with a simultaneous and sizable new physics contribution to the electron and muon anomalous magnetic moments $(g-2)_\ell$ ($\ell=e,\,\mu$), only if we assume a…

高能物理 - 唯象学 · 物理学 2020-06-18 Lorenzo Calibbi , M. L. López-Ibáñez , Aurora Melis , Oscar Vives

Precise measurement of the Electric Dipole Moment (EDM) and anomalous magnetic moment ($g$-2) of particles are important tests of Beyond Standard Model (BSM) physics. It is generally believed that the tau lepton couples more strongly to BSM…

高能物理 - 唯象学 · 物理学 2020-01-08 Xin Chen , Yongcheng Wu

The minimal supersymmetric standard model (MSSM) with complex parameters can contribute sizably to muon/electron anomalous magnetic dipole momemnt ($g-2$) and electric dipole moment (EDM). The electron $g-2$ interplays with electron EDM;…

高能物理 - 唯象学 · 物理学 2021-12-03 Song Li , Yang Xiao , Jin Min Yang

Electric dipole moments (EDMs) of elementary particles are powerful probes of new physics with flavor-diagonal CP violation. The reported discrepancy in the muon anomalous magnetic moment motivates us to explore to what extent new physics…

高能物理 - 唯象学 · 物理学 2022-06-03 Yuichiro Nakai , Ryosuke Sato , Yoshihiro Shigekami

The recent experimental status, including the confirmation of the muon $g-2$ anomaly at Fermilab, indicates a Beyond Standard Model (BSM) satisfying the following properties: 1) it enhances the $g-2$ 2) suppresses flavor violations, such as…

高能物理 - 唯象学 · 物理学 2021-09-01 Wen Yin

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

QED, Hadronic, and Electroweak Standard Model contributions to the muon anomalous magnetic moment, a_mu = (g_mu-2)/2, are reviewed. Theoretical uncertainties in the prediction a_mu^SM = 116591597(67) times 10^{-11} are scrutinized. Effects…

高能物理 - 唯象学 · 物理学 2007-05-23 Andrzej Czarnecki , William J. Marciano

It is well known that the muon magnetic dipole moment (MDM) has close relation with the new physics (NP) in the development of the Standard Model (SM). Combined with the Fermilab National Accelerator Laboratory (FNAL) and the Brookhaven…

高能物理 - 唯象学 · 物理学 2025-01-14 Xing-Yu Han , Shu-Min Zhao , Long Ruan , Xi Wang , Xing-Xing Dong
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