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相关论文: Muon g-2 and lepton flavor violation in a two Higg…

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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

Current experimental data from the $g-2$ muon factor, seems to show the necessity of physics beyond the Standard Model (SM), since the difference between SM and experimental predictions is 2.6$\sigma $. In the framework of the General Two…

高能物理 - 唯象学 · 物理学 2013-05-29 Rodolfo A. Diaz , R. Martinez , J. -Alexis Rodriguez

A two Higgs doublet model (2HDM) is one of the minimal extensions of the Standard Model (SM), and it is well-known that the general setup predicts the flavor-violating phenomena, mediated by neutral Higgs interactions. Recently the CMS…

高能物理 - 唯象学 · 物理学 2017-09-13 Yuji Omura , Eibun Senaha , Kazuhiro Tobe

The anomalous magnetic moment of muons has been a long-standing problem in SM. The current deviation of experimental value of the $(g-2)_{\mu}$ from the standard model prediction is exactly $4.2\sigma$. Two Higgs Doublet Models can…

高能物理 - 唯象学 · 物理学 2023-08-09 Md. Raju , Abhi Mukherjee , Jyoti Prasad Saha

We analyze the flavor changing decay $h\rightarrow \mu \tau $ in the framework of a Two Higgs Doublet Model with a fourth generation of fermions (4G2HDM) which couples only to the heavy scalar doublet. We obtain that the respective…

高能物理 - 唯象学 · 物理学 2018-04-03 S. Chamorro-Solano , A. Moyotl , M. A. Pérez

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 examine the possibilities of accommodating the muon $g-2$ anomaly reported by Fermilab in the 2HDM with a discrete $Z_4$ symmetry in which an inert Higgs doublet field ($H,~A,~H^\pm$) has the lepton flavor violation $\mu$-$\tau$…

高能物理 - 唯象学 · 物理学 2021-12-01 Hong-Xin Wang , Lei Wang , Yang Zhang

We constrain some lepton flavor violating vertices in the context of the two Higgs doublet model type III, assuming that the lightest scalar Higgs mass $% m_{h^{0}} $is about $115 $GeV. Specifically, based on the $g-2 $muon factor and the…

高能物理 - 唯象学 · 物理学 2014-11-17 Rodolfo A. Diaz , R. Martinez , J. -Alexis Rodriguez

In this study, we investigate the anomalous magnetic moment of the muon $(g_\mu-2)$ as reported by Fermilab (FNAL), along with the recent measurement of the $W$-boson mass by the CDF-II collaboration. Both findings show significant…

高能物理 - 唯象学 · 物理学 2024-01-05 Rachid Benbrik , Mohammed Boukidi , Bouzid Manaut

One of the main motivations to look beyond the SM is the discrepancy between the theoretical prediction and observation of anomalous magnetic moment of muon. Alleviating this tension between theory and experiment and satisfying the bounds…

高能物理 - 唯象学 · 物理学 2021-03-24 Nivedita Ghosh , Jayita Lahiri

In this article, we review and update implications of the muon anomalous magnetic moment (muon $g-2$) anomaly for two-Higgs-doublet models (2HDMs), which are classified according to imposed symmetries and their resulting Yukawa sector. In…

高能物理 - 唯象学 · 物理学 2024-01-12 Syuhei Iguro , Teppei Kitahara , Martin S. Lang , Michihisa Takeuchi

Inspired by a significance of $2.4\sigma$ in $h\to \mu \tau$ decay observed by CMS at $\sqrt{s} = 8$ TeV, we investigate the Higgs lepton flavor violating effects in the generic two-Higgs-doublet model (GTHDM), where the lepton flavor…

高能物理 - 唯象学 · 物理学 2016-07-26 R. Benbrik , Chuan-Hung Chen , Takaaki Nomura

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

We explore Two Higgs Doublet Models with non-standard flavor structures. In analogy to the four, well studied, models with natural flavor conservation (type 1, type 2, lepton-specific, flipped), we identify four models that preserve an…

高能物理 - 唯象学 · 物理学 2018-11-08 Wolfgang Altmannshofer , Brian Maddock

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

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

Two Higgs doublet models are attractive scenarios for physics beyond the Standard Model. In particular, lepton-specific manifestations remain contenders to explain the observed discrepancy between the anomalous magnetic moment of the muon…

高能物理 - 唯象学 · 物理学 2023-01-11 Oliver Atkinson , Matthew Black , Christoph Englert , Alexander Lenz , Aleksey Rusov

The Two Higgs Doublet model and its phenomenological implications are discussed. A brief survey on the present status of this model is given. In particular, we concentrate on the Two Higgs Doublet Model with Flavor Changing Neutral…

高能物理 - 唯象学 · 物理学 2007-05-23 Rodolfo A. Diaz

The recent confirmation of the muon $g-2$ anomaly by the Fermilab g-2 experiment may harbinger a new era in $\mu$ and $\tau$ physics. In the context of general two Higgs doublet model, the discrepancy can be explained via one-loop exchange…

高能物理 - 唯象学 · 物理学 2022-02-15 Wei-Shu Hou , Girish Kumar

We examine the $h\to \mu\tau$ and muon g-2 in the exact alignment limit of two-Higgs-doublet model. In this case, the couplings of the SM-like Higgs to the SM particles are the same as the Higgs couplings in the SM at the tree level, and…

高能物理 - 唯象学 · 物理学 2017-04-26 Lei Wang , Shuo Yang , Xiao-Fang Han
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