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相关论文: Lepton flavor violation, lepton $(g-2)_{\mu,\,e}$ …

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We study the interplay of New Physics (NP) among the lepton magnetic moment, the lepton flavor violation (LFV) and the electron electric dipole moment (EDM) in light of recent data of the muon $(g-2)_\mu$. The NP is discussed in the…

高能物理 - 唯象学 · 物理学 2024-03-15 Morimitsu Tanimoto , Kei Yamamoto

We have studied the leptonic EDM and the LFV decays relating with the recent data of anomalous magnetic moment of muon, $(g-2)_{\mu}$ in the leptonic dipole operator. We have adopted the successful $\Gamma_2$ modular invariant model by…

高能物理 - 唯象学 · 物理学 2024-12-18 Takaaki Nomura , Morimitsu Tanimoto , Xing-Yu Wang

The magnetic dipole moment (MDM) and the electric dipole moment (EDM) of leptons are calculated under the assumption of lepton flavor violation (LFV) induced by spin-1 unparticles with both vector and axial-vector couplings to…

高能物理 - 唯象学 · 物理学 2011-10-24 A. Moyotl , A. Rosado , G. Tavares-Velasco

We review how the muon anomalous magnetic moment ($g-2$) and the quest for lepton flavor violation are intimately correlated. Indeed the decay $\mu \to e \gamma$ is induced by the same amplitude for different choices of in- and outgoing…

高能物理 - 唯象学 · 物理学 2017-12-08 Manfred Lindner , Moritz Platscher , Farinaldo S. Queiroz

In the Standard Model (SM), charged lepton flavor-violating (LFV) processes are strictly forbidden, and thus observation of LFV would signal the presence of new physics. Recently, the Muon $g{-}2$ collaboration at Fermilab reported their…

高能物理 - 唯象学 · 物理学 2025-09-25 Zhao-Yang Zhang

We analyze lepton flavour violating transitions, leptonic magnetic dipole moments (MDMs) and electric dipole moments (EDMs) in a class of models characterized by the flavour symmetry A4 x Z3 x U(1)_{FN}, whose choice is motivated by the…

高能物理 - 唯象学 · 物理学 2008-12-18 Ferruccio Feruglio , Claudia Hagedorn , Yin Lin , Luca Merlo

The electric dipole moment (EDM) of electron is studied in the supersymmetric $\rm A_4$ modular invariant theory of flavors with CP invariance. The CP symmetry of the lepton sector is broken by fixing the modulus $\tau$. Lepton mass…

高能物理 - 唯象学 · 物理学 2021-11-10 Morimitsu Tanimoto , Kei Yamamoto

We examine the muon's electric dipole moment $\dmu$ from a variety of theoretical perspectives. We point out that the reported deviation in the muon's g-2 can be due partially or even entirely to a new physics contribution to the muon's…

高能物理 - 唯象学 · 物理学 2008-11-26 Jonathan L. Feng , Konstantin T. Matchev , Yael Shadmi

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

We examine the lepton dipole moments in an extension of the Standard Model (SM), which contains vector-like leptons that couple only to the second-generation SM leptons. The model naturally leads to sizable contributions to the muon $g-2$…

高能物理 - 唯象学 · 物理学 2023-02-08 Koichi Hamaguchi , Natsumi Nagata , Genta Osaki , Shih-Yen Tseng

We study the electric dipole moments (EDMs) of fermions in the standard model supplemented with right-handed neutrinos and its extension including neutrino seesaw mechanism under the framework of minimal flavor violation (MFV). In the quark…

高能物理 - 唯象学 · 物理学 2015-06-19 Xiao-Gang He , Chao-Jung Lee , Siao-Fong Li , Jusak Tandean

We investigate the lepton flavor violation (LFV) decays, $\tau\to l\gamma$ ($l=\mu, e$) and $\mu\to e\gamma$, and the newly observed muon $g-2$ anomaly in the framwork of a squential fourth generation model with a heavy fourth neutrino,…

高能物理 - 唯象学 · 物理学 2007-05-23 W. J. Huo , T. F. Feng

We study the prospects and opportunities of a large muon electric dipole moment (EDM) of the order (10^{-24} - 10^{-22}) ecm. We investigate how natural such a value is within the general minimal supersymmetric extension of the Standard…

高能物理 - 唯象学 · 物理学 2010-12-23 Gudrun Hiller , Katri Huitu , Jari Laamanen , Timo Rüppell

In the context of general Minimal Supersymmetric Standard Model (MSSM), new sources for Lepton Flavor Violation (LFV) as well as CP-violation appear. We show that in the presence of LFV sources, the electric dipole moment of the electron…

高能物理 - 唯象学 · 物理学 2008-10-20 Yaser Ayazi , Yasaman Farzan

We investigate the muon anomalous magnetic dipole moment (MDM), the muon electric dipole moment (EDM) and the lepton-flavour-violating decays of the $\tau-$lepton, $\tau \to \mu \gamma$ and $\tau\to 3\mu$, in the CP-violating Minimal…

高能物理 - 唯象学 · 物理学 2009-11-10 Tai-Fu Feng , Tao Huang , Xue-Qian Li , Xin-Min Zhang , Shu-Min Zhao

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

We compute the electromagnetic form factors of the $l_i l_j \gamma$ vertex at one-loop level in the minimal G2HDM which has a sub-GeV vector dark matter candidate. The results are applied to the radiative decay rates for the charged lepton…

高能物理 - 唯象学 · 物理学 2023-03-22 Van Que Tran , Tzu-Chiang Yuan

Charged lepton flavor violating processes are forbidden in the standard model (SM), hence the observation of charged lepton flavor transitions would represent a clear signal of new physics beyond the standard Model. In this work, we…

高能物理 - 唯象学 · 物理学 2019-01-07 Jin-Lei Yang , Tai-Fu Feng , Yu-Li Yan , Wei Li , Shu-Min Zhao , Hai-Bin Zhang

The most stringent bounds on the anomalous magnetic and electric dipole moments of the tau lepton was derived by Escribano and Mass\'{o}[6] from the Z width at LEP in an effective lagrangian approach to the new physics. In this paper we…

高能物理 - 唯象学 · 物理学 2009-10-31 Tao Huang , Zhi-Hai Lin , Xinmin Zhang

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
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