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Current muon anomalous magnetic moment data have challenged the SM, and seems to open a window to new Physics. Since the difference between SM and experimental predictions is approximately $2.6\sigma$. In the framework of the General Two…

高能物理 - 唯象学 · 物理学 2014-12-10 Rodolfo A. Diaz , R. Martinez , J. -Alexis Rodriguez

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

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

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

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

The $3.1\sigma$ $R_K$ anomaly after Moriond 2021 and $3.3 \sigma$ $\Delta a_\mu$ from Fermilab Muon g-2 experiment implicate that the lepton flavor universality violation (LFUV) may play a role in the exploration of new physics. A Flavor…

高能物理 - 唯象学 · 物理学 2021-04-09 Junmou Chen , Qiaoyi Wen , Fanrong Xu , Mengchao Zhang

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 present a comprehensive analysis of the muon magnetic moment $a_\mu$ in the flavour-aligned two-Higgs doublet model (2HDM) and parameter constraints relevant for $a_\mu$. We employ a recent full two-loop computation of $a_\mu$ and take…

高能物理 - 唯象学 · 物理学 2018-08-08 Adriano Cherchiglia , Dominik Stöckinger , Hyejung Stöckinger-Kim

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

In the minimal Standard Model (SM) with four generations (the so called SM4) and in "standard" two Higgs doublets model (2HDM) setups, e.g., the type II 2HDM with four fermion generations, the contribution of the 4th family heavy leptons to…

高能物理 - 唯象学 · 物理学 2015-06-03 Shaouly Bar-Shalom , Soumitra Nandi , Amarjit Soni

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

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

We propose a two-Higgs-doublet model in which one Higgs doublet has the same interactions with fermions as the SM, and another Higgs doublet only has the $\mu$-$\tau$ LFV interactions. Assuming that the Yukawa matrices are real and…

高能物理 - 唯象学 · 物理学 2021-04-09 Lei Wang , Yang Zhang

We perform a global statistical analysis of the two-Higgs-doublet model with generic sources of flavour violation using \textsf{GAMBIT}. This is particularly interesting in light of deviations from the Standard Model predictions observed in…

高能物理 - 唯象学 · 物理学 2024-11-27 Peter Athron , Andreas Crivellin , Tomás E. Gonzalo , Syuhei Iguro , Cristian Sierra

To explain the observed muon anomaly and simultaneously evade bounds from lepton flavor violation in the same model parameter space is a long cherished dream. In view of a generalized Two Higgs Doublet Model, with a Yukawa structure as a…

高能物理 - 唯象学 · 物理学 2021-12-22 Nivedita Ghosh , Jayita Lahiri

The muon anomalous magnetic moment is investigated in the standard model with two Higgs doublets (S2HDM) motivated from spontaneous CP violation. Thus all the effective Yukawa couplings become complex. As a consequence of the non-zero phase…

高能物理 - 唯象学 · 物理学 2014-11-17 Yue-Liang Wu , Yu-Feng Zhou

Recent progress on muon $g-2$ measurement prompts one to take it even more seriously. In the general two Higgs doublet model that allows extra Yukawa couplings, we take a simplified approach of single enhanced coupling. We fix the charged…

高能物理 - 唯象学 · 物理学 2021-11-10 Wei-Shu Hou , Rishabh Jain , Chung Kao , Girish Kumar , Tanmoy Modak

We investigate a new type of a two-Higgs-doublet model as a solution of the muon $g-2$ anomaly. We impose a softly-broken $Z_4$ symmetry to forbid tree level flavor changing neutral currents in a natural way. This $Z_4$ symmetry restricts…

高能物理 - 唯象学 · 物理学 2017-08-02 Tomohiro Abe , Ryosuke Sato , Kei Yagyu

We study the Two-Higgs-Doublet Model with the aligned Yukawa sector (A2HDM) in light of the observed excess measured in the muon anomalous magnetic moment. We take into account the existing theoretical and experimental constraints with…

高能物理 - 唯象学 · 物理学 2016-03-23 Tao Han , Sin Kyu Kang , Joshua Sayre

We calculate the new physics effects on the anomalous magnetic moment of the muon in the framework of the two Higgs doublet model. We predict an upper bound for the lepton flavor violating coupling, which is responsible for the point like…

高能物理 - 唯象学 · 物理学 2007-05-23 E. O. Iltan , H. Sundu
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