中文
相关论文

相关论文: Off-mass-shell muon anomalous magnetic moment

200 篇论文

We show that the discrepancy between the observed value of the muon anomalous moment and the standard model prediction can be explained in the framework of nonlocal theories. We compute the leading order and next to leading order nonlocal…

高能物理 - 唯象学 · 物理学 2022-06-14 Antonio Capolupo , Gaetano Lambiase , Aniello Quaranta

The discrepancy between the measured value and the Standard Model prediction for the muon anomalous magnetic moment is one of the important issues in the particle physics. In this paper, we consider a two Higgs doublet model (2HDM) where…

高能物理 - 唯象学 · 物理学 2020-01-29 Syuhei Iguro , Yuji Omura , Michihisa Takeuchi

We propose a leptoquark model simultaneously to explain anomalies of muon anomalous magnetic dipole moment and $b\to s \mu\bar\mu$ in light of experimental reports very recently. Here, we satisfy several stringent constraints such as…

高能物理 - 唯象学 · 物理学 2021-09-08 Takaaki Nomura , Hiroshi Okada

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…

高能物理 - 实验 · 物理学 2009-06-23 J. P. Miller

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

A systematic investigation on muon anomalous magnetic moment and related lepton flavor-violating process such as $\m\to e\g$, $\t\to e\g$ and $\t\to \m\g$ is made at two loop level in the models with flavor-changing scalar interactions. The…

高能物理 - 唯象学 · 物理学 2014-11-17 Y. F. Zhou , Y. L. Wu

The recent measurement of the muon anomalous magnetic moment by the Fermilab E989 experiment, when combined with the previous result at BNL, has confirmed the tension with the SM prediction at $4.2\,\sigma$ CL, strengthening the motivation…

高能物理 - 唯象学 · 物理学 2021-10-05 D. W. P. Amaral , D. G. Cerdeno , A. Cheek , P. Foldenauer

A new scalar particle with generic couplings to the standard-model particles is a possible source for the lepton anomalous magnetic moment and the violation of the weak equivalence principle. Here, one-loop contributions to the lepton…

高能物理 - 唯象学 · 物理学 2025-09-12 Xitong Mei , Dongfeng Gao , Wei Zhao , Jin Wang , Mingsheng Zhan

In this review we discuss physics of the lepton sector, the anomalous dipole moment of muon, the charged lepton-flavor violation, and the electric dipole moments of charged leptons, from viewpoints of the minimal supersymmetric standard…

高能物理 - 唯象学 · 物理学 2009-11-07 J. Hisano

Higher-order hadronic corrections to the anomalous magnetic moment of the muon have been evaluated including next-to-next-to-leading-order insertions of hadronic vacuum polarization and next-to-leading-order corrections to hadronic…

高能物理 - 唯象学 · 物理学 2022-03-21 Martin Hoferichter , Thomas Teubner

We propose a simple model to obtain sizable muon anomalous magnetic dipole moment (muon $g-2$) introducing several $SU(2)_L$ multiplet fields without any additional symmetries. The neutrino mass matrix is simply induced via type-II seesaw…

高能物理 - 唯象学 · 物理学 2025-02-04 Takaaki Nomura , Hiroshi Okada

The new measurement of the anomalous magnetic moment of muon at the Fermilab Muon $g-2$ experiment has strengthened the significance of the discrepancy between the standard model prediction and the experimental observation from the BNL…

高能物理 - 唯象学 · 物理学 2021-10-11 Kwang Sik Jeong , Junichiro Kawamura , Chan Beom Park

The anomalous magnetic moment of the muon displays a $4.2\sigma$ tension with the Standard-Model prediction, if $e^+e^-\to \text{hadrons}$ data are used for hadronic vacuum polarization. In these proceedings we review possible explanations…

高能物理 - 唯象学 · 物理学 2022-07-06 Andreas Crivellin , Martin Hoferichter

There has been a long-standing discrepancy between the experimental measurements of the electron and muon anomalous magnetic moments and their predicted values in the Standard Model. This is particularly relevant in the case of the muon…

高能物理 - 唯象学 · 物理学 2021-09-15 Pablo Escribano , Jorge Terol-Calvo , Avelino Vicente

We point out that heavy new physics contributions in leptonic dipole moments and high-energy cross-sections of lepton pairs into Higgs bosons and photons are connected model-independently. In particular, we demonstrate that a muon collider,…

高能物理 - 唯象学 · 物理学 2022-01-03 Dario Buttazzo , Paride Paradisi

We study the contribution of a generic charged Higgs $(H^+)$ to the muon anomalous magnetic moment $a_{\mu}$ with the SUSY soft breaking parameters. We find out that the deviation between the experimental data and the predicted SM value on…

高能物理 - 唯象学 · 物理学 2008-11-26 Chuan-Hung Chen , C. Q. Geng

The relativistic and quantum theoretical explanations of the magnetic moment anomaly of the electron (or proton) show that it is a complicated function of the fine structure constant. In this work, a simple non-relativistic approach shows…

综合物理 · 物理学 2007-05-23 Raji Heyrovska

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…

高能物理 - 唯象学 · 物理学 2022-01-25 Luigi Delle Rose , Shaaban Khalil , Stefano Moretti

Violation of chiral symmetry together with change of mass sign allows a linear correction in inverse power of new physics scale to the anomalous magnetic moment of muon. In this light we analyse alternative models showing in particular that…

高能物理 - 唯象学 · 物理学 2007-05-23 Helder Chavez , Luis Masperi

The 2.6 sigma deviation in the muon's anomalous magnetic moment has strong implications for supersymmetry. In the most model-independent analysis to date, we consider gaugino masses with arbitrary magnitude and phase, and sleptons with…

高能物理 - 唯象学 · 物理学 2007-05-23 Jonathan L. Feng , Konstantin T. Matchev