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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…

高能物理 - 唯象学 · 物理学 2022-08-24 Tatsuo Kobayashi , Hajime Otsuka , Morimitsu Tanimoto , Kei Yamamoto

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 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

Vector leptoquarks can address the lepton flavor universality anomalies in decays associated with the $b \to c \ell \nu$ and $b \to s \ell \ell$ transitions, as observed in recent years. Generically, these leptoquarks yield new sources of…

高能物理 - 唯象学 · 物理学 2020-06-24 Wolfgang Altmannshofer , Stefania Gori , Hiren H. Patel , Stefano Profumo , Douglas Tuckler

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

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 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 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

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 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 dimension five Lorentz-violating nonminimal interactions in the electroweak sector, in connection with the possible generation of electric dipole moment (EDM), weak electric dipole moment (WEDM), magnetic dipole moment (MDM)…

We investigate the lepton flavor violation decays of vector mesons in the scenario of the unparticle physics by considering the constraint from $\mu-e$ conversion. In unparticle physics, the predictions of LFV decays of vector mesons depend…

高能物理 - 唯象学 · 物理学 2013-12-10 Ke-Sheng Sun , Tai-Fu Feng , Li-Na Kou , Fei Sun , Tie-Jun Gao , Hai-Bin Zhang

In many models of CP violation, the electric dipole moments (EDMs) of leptons scale as the cube of the lepton mass. In these models, the EDM of a 100 GeV heavy lepton would be a billion times greater than that of the muon, and could be as…

高能物理 - 唯象学 · 物理学 2014-11-17 Marc Sher

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

In the framework of the MSSM extension with local gauged baryon and lepton numbers (BLMSSM), we calculate the muon anomalous magnetic dipole moment (MDM) and lepton $(e, \mu, \tau)$ electric dipole moment (EDM), and discuss how the muon MDM…

高能物理 - 唯象学 · 物理学 2023-03-07 Xi Wang , Shu-Min Zhao , Xin-Xin Long , Yi-Tong Wang , Tong-Tong Wang , Hai-Bin Zhang , Tai-Fu Feng , Rong-Xiang Zhang

We identify new room for CP violation in lepton flavor violating observables not bound by the electric dipole moment of leptons. By focusing on new physics in the muon-electron sector, we show that CP violation can make its first appearance…

高能物理 - 唯象学 · 物理学 2024-08-05 Diego Redigolo , Michele Tammaro , Andrea Tesi

Violation of $CP$ invariance is a quite relevant phenomenon that is found in the Standard Model (SM), though in small amounts. This has been an incentive to look for high-energy descriptions in which $CP$ violation is increased, thus…

高能物理 - 唯象学 · 物理学 2017-03-22 H. Novales-Sánchez , M. Salinas , J. J. Toscano , O. Vázquez-Hernández

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…

高能物理 - 实验 · 物理学 2011-08-17 B. Lee Roberts

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…

高能物理 - 实验 · 物理学 2009-11-10 B. Lee Roberts

Any observation of charged lepton flavor violation (CLFV) implies the existence of new physics beyond the SM in charged lepton sector. CLFV interactions may also contribute to the muon magnetic moment and explain the discrepancy between the…

高能物理 - 唯象学 · 物理学 2021-09-29 Tong Li , Michael A. Schmidt , Chang-Yuan Yao , Man Yuan
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