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相关论文: Probing New Physics in the Vector-like Lepton Mode…

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We address the observed discrepancies in the anomalous magnetic dipole moments (MDM) of the muon and electron by extending the inert two Higgs Doublet Model (2HDM) with SM gauge singlet complex scalar field and singlet Vector-like Lepton…

高能物理 - 唯象学 · 物理学 2021-11-10 Hrishabh Bharadwaj , Sukanta Dutta , Ashok Goyal

The Belle II experiment and other ongoing and projected lepton facilities are expected to greatly enhance the sensitivity to the electric dipole moment (EDM) and anomalous magnetic moment ($g-2$) for the tau lepton, making it timely to…

高能物理 - 唯象学 · 物理学 2026-02-04 Yuichiro Nakai , Yoshihiro Shigekami , Peng Sun , Zhihao Zhang

We consider the two Higgs doublet model (2HDM) along with a generation of vector-like lepton doublet and singlet to explain the observed discrepancies in the electron and muon anomalous magnetic moments. The type-X (lepton-specific) 2HDM…

高能物理 - 唯象学 · 物理学 2020-11-23 Eung Jin Chun , Tanmoy Mondal

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

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

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

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

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

In a two Higgs doublet model with extra Yukawa couplings, we assess the new physics contributions to charged lepton electric dipole moment. We focus especially on muon (and tau) EDM where in the coming decade several experiments $-$ Muon…

高能物理 - 唯象学 · 物理学 2022-10-25 Wei-Shu Hou , Girish Kumar , Sven Teunissen

The recent measurement of the muon $g - 2$ anomaly continues to defy a Standard Model explanation, but can be accommodated within the framework of two Higgs doublet models. If one further includes extra fermion content in the form of a…

高能物理 - 唯象学 · 物理学 2021-09-29 P. M. Ferreira , B. L. Gonçalves , F. R. Joaquim , Marc Sher

We calculate chirally enhanced corrections to the muon's electric and magnetic dipole moments in two-Higgs-doublet models extended by vector-like leptons, and we explore a sharp correlation between $h \rightarrow \mu^+ \mu^-$ and the muon's…

高能物理 - 唯象学 · 物理学 2023-09-22 Radovan Dermisek , Keith Hermanek , Navin McGinnis , Sangsik Yoon

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 CP violating two-Higgs doublet model of type-X may enhance significantly the electric and magnetic moment of leptons through two-loop Barr-Zee diagrams. We analyze the general parameter space of the type-X 2HDM consistent with the muon…

高能物理 - 唯象学 · 物理学 2020-01-29 Eung Jin Chun , Jongkuk Kim , Tanmoy Mondal

It is shown that the electric dipole moment of the tau lepton several orders of magnitude larger than predicted by the standard model can be generated from mixings in models with vector like mutiplets. The EDM of the tau lepton arises from…

高能物理 - 唯象学 · 物理学 2010-04-28 Tarek Ibrahim , Pran Nath

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

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

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 anomalous magnetic and electric dipole moments of charged leptons in supersymmetric low-scale seesaw models with right-handed neutrino superfields. We consider a minimally extended framework of minimal supergravity, by assuming…

高能物理 - 唯象学 · 物理学 2014-01-15 Amon Ilakovac , Apostolos Pilaftsis , Luka Popov

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

In this paper we present the complete expressions of the lepton and neutron electric dipole moments (EDMs) in the Standard Model Effective Field Theory (SMEFT), up to 1-loop and dimension-6 level and including both RG running contributions…

高能物理 - 唯象学 · 物理学 2023-01-16 Jonathan Kley , Tobias Theil , Elena Venturini , Andreas Weiler
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