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Related papers: Theoretical Expectations for the Muon's Electric D…

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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…

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

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…

High Energy Physics - Phenomenology · Physics 2024-03-15 Morimitsu Tanimoto , Kei Yamamoto

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…

High Energy Physics - Phenomenology · Physics 2010-12-23 Gudrun Hiller , Katri Huitu , Jari Laamanen , Timo Rüppell

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…

High Energy Physics - Phenomenology · Physics 2022-06-03 Yuichiro Nakai , Ryosuke Sato , Yoshihiro Shigekami

We study the lepton flavor violation (LFV), the leptonic magnetic moments $(g-2)_{\mu,\,e} $ and the electric dipole moment (EDM) of the electron in the Standard-Model Effective Field Theory with the $\Gamma_N$ modular flavor symmetry. We…

High Energy Physics - Phenomenology · Physics 2022-08-24 Tatsuo Kobayashi , Hajime Otsuka , Morimitsu Tanimoto , Kei Yamamoto

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…

High Energy Physics - Phenomenology · Physics 2018-12-12 Andreas Crivellin , Martin Hoferichter , Philipp Schmidt-Wellenburg

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…

High Energy Physics - Phenomenology · Physics 2017-12-08 Manfred Lindner , Moritz Platscher , Farinaldo S. Queiroz

The muon $g-2$ anomaly is a long-standing discrepancy from its standard model prediction. The recent improved measurement of the fine structure constant makes the electron $g-2$ anomaly very interesting for both sign and magnitude in…

High Energy Physics - Phenomenology · Physics 2019-02-13 Bhaskar Dutta , Yukihiro Mimura

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…

High Energy Physics - Phenomenology · Physics 2009-11-10 Tai-Fu Feng , Tao Huang , Xue-Qian Li , Xin-Min Zhang , Shu-Min Zhao

We study if a sizeable muon electric dipole can arise in supersymmetric frameworks able to account for the tight experimental bounds on sfermion masses, like an appropriate flavor symmetry, or like a flavor-blind mechanism of SUSY breaking…

High Energy Physics - Phenomenology · Physics 2009-10-09 Andrea Romanino , Alessandro Strumia

Data from the muon g-2 experiment at Brookhaven National Lab has been analyzed to search for a muon electric dipole moment(EDM), which would violate parity and time reversal symmetries. An EDM would cause a tilt in the spin precession plane…

High Energy Physics - Experiment · Physics 2007-05-23 Ronald McNabb

From the famous experiments of Stern and Gerlach to the present, measurements of magnetic dipole moments, and searches for electric dipole moments of ``elementary'' particles have played a major role in our understanding of sub-atomic…

High Energy Physics - Experiment · Physics 2011-08-17 B. Lee Roberts

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…

High Energy Physics - Phenomenology · Physics 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…

High Energy Physics - Phenomenology · Physics 2011-10-24 A. Moyotl , A. Rosado , G. Tavares-Velasco

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…

High Energy Physics - Phenomenology · Physics 2008-12-18 Ferruccio Feruglio , Claudia Hagedorn , Yin Lin , Luca Merlo

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…

High Energy Physics - Phenomenology · Physics 2021-12-24 J. C. Criado , A. Djouadi , N. Koivunen , K. Müürsepp , M. Raidal , H. Veermäe

Following a proposal for an experiment with sensitivity to an electric dipole moment (EDM) of the muon $d_\mu$ of order $6\times10^{-23}\ e$ cm, three to four orders of magnitude below the current bound, but still seven orders of magnitude…

High Energy Physics - Phenomenology · Physics 2025-12-01 Kuldeep Deka , Marta Losada , Yosef Nir

Since its discovery, the muon has proven to be an invaluable probe of the Standard Model (SM). Muons are readily available in tertiary beams in facilities around the world. They do not decay hadronically and have a lifetime of a few $\mu$…

High Energy Physics - Experiment · Physics 2025-02-04 Sophie Middleton

A discrepancy between the experimental and theoretical results was reported for the anomalous magnetic moment of the muon. In leptogenesis scenarios which are due to a decay of right-handed neutrinos, this anomaly leads to large violations…

High Energy Physics - Phenomenology · Physics 2008-05-08 Motoi Endo , Tetsuo Shindou

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…

High Energy Physics - Phenomenology · Physics 2020-04-10 Jin-Lei Yang , Tai-Fu Feng , Hai-Bin Zhang
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