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相关论文: Explaining electron and muon $g-2$ anomaly in SUSY…

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We propose to jointly explain the electron/muon $g-2$ anomalies in the framework of anomaly mediated SUSY breaking (AMSB) scenario. Two Yukawa deflected AMSB models are proposed and discussed in depth: one with lepton-specific interactions…

高能物理 - 唯象学 · 物理学 2022-08-31 Song Li , Zhuang Li , Fei Wang , Jin Min Yang

We consider a type I or type X two Higgs doublets model with a modified lepton sector. The generalized lepton sector is also flavor conserving but with the new Yukawa couplings completely decoupled from lepton mass proportionality. The…

高能物理 - 唯象学 · 物理学 2023-02-08 Francisco J. Botella , Fernando Cornet-Gomez , Carlos Miró , Miguel Nebot

We consider supersymmetric (SUSY) models for the muon $g-2$ anomaly without flavor violating masses at the tree-level. The models can avoid LHC constraints and the vacuum stability constraint in the stau-Higgs potential. Although large…

高能物理 - 唯象学 · 物理学 2022-05-20 Ryo Nagai , Norimi Yokozaki

Muon g-2 anomaly, which is mismatch between the theoretical and the experimental values of the anomalous magnetic moment of muons, provides a sensitive probe of new physics. In SUSY, if masses of the superpartners relevant to the muon g-2…

高能物理 - 唯象学 · 物理学 2015-08-21 Takahiro Yoshinaga

Supersymmetry is still a viable explanation for the muon $g-2$ anomaly, if the sleptons and electroweak gauginos are $\mathcal{O}(100)$ GeV. However, for supersymmetry breaking masses this light, the SUSY flavor and CP-problem are…

高能物理 - 唯象学 · 物理学 2023-03-22 Jason L. Evans , Tsutomu T. Yanagida , Norimi Yokozaki

We present a class of supersymmetric (SUSY) GUT models that can explain the apparent discrepancy between the SM predictions and experimental values of muon g-2 while providing testable signals for lepton flavor violation in charged lepton…

高能物理 - 唯象学 · 物理学 2024-10-01 Mario E. Gomez , Smaragda Lola , Qaisar Shafi , Cem Salih Un

We propose simple models with a flavor-dependent global $U(1)_\ell$ and a discrete $\mathbb{Z}_2$ symmetries to explain the anomalies in the measured anomalous magnetic dipole moments of muon and electron, $(g-2)_{\mu,e}$, while…

高能物理 - 唯象学 · 物理学 2020-10-28 Kai-Feng Chen , Cheng-Wei Chiang , Kei Yagyu

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…

高能物理 - 唯象学 · 物理学 2019-02-13 Bhaskar Dutta , Yukihiro Mimura

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

A non-universal $U(1)_{X}$ extension to the Standard Model composed of two scalar doublets and two scalar singlets together with three additional quark singlets and two lepton singlets and three generations of right-handed and Majorana…

高能物理 - 唯象学 · 物理学 2020-10-07 J. S. Alvarado , M. A. Bulla , D. G. Martinez , R. Martinez

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 consider a supersymmetric type-I seesaw framework with non-universal scalar masses at the GUT scale to explain the long-standing discrepancy of the anomalous magnetic moment of the muon. We find that it is difficult to accommodate the…

高能物理 - 唯象学 · 物理学 2020-06-24 Chengcheng Han , M. L. López-Ibáñez , Aurora Melis , Óscar Vives , Lei Wu , Jin Min Yang

In the light of the recent measurement of the muon anmalous magnetic moment $a_\mu$ by the Muon $(g-2)$ Collaboration, we examine the contribution to $a_\mu$ from the exchange of flavor changing scalars. Assuming that the heavier…

高能物理 - 唯象学 · 物理学 2009-11-07 Sin Kyu Kang , Kang Young Lee

In this work we analyze the possibility to explain the muon anomalous magnetic moment discrepancy within theory and experiment through lepton flavor violation processes. We propose a flavor extended MSSM by considering a hierarchical family…

高能物理 - 唯象学 · 物理学 2016-11-23 F. V. Flores-Baez , M. Gomez-Bock , M. Mondragon

We propose a scenario where only the Higgs multiplets have direct couplings to a supersymmetry (SUSY) breaking sector. The standard model matter multiplets as well as the gauge multiples are sequestered from the SUSY breaking sector;…

高能物理 - 唯象学 · 物理学 2017-01-20 Wen Yin , Norimi Yokozaki

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

The recent Fermilab muon $g-2$ result and the same for electron due to fine-structure constant measurement through ${}^{133}{\rm Cs}$ matter-wave interferometry are probed in relation to MSSM with non-holomorphic (NH) trilinear soft SUSY…

高能物理 - 唯象学 · 物理学 2023-01-25 Md. Isha Ali , Manimala Chakraborti , Utpal Chattopadhyay , Samadrita Mukherjee

A simple model for the explanation of the muon anomalous magnetic moment was proposed by the present authors within the context of the minimal supersymmetric standard model [1607.05705, 1608.06618]: "Higgs-anomaly mediation". In the setup,…

高能物理 - 唯象学 · 物理学 2020-07-15 Tsutomu T. Yanagida , Wen Yin , Norimi Yokozaki

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 FNAL+BNL measurements for muon $g-2$ is $4.2\sigma$ above the SM prediction, and the Berkeley $^{133}$Cs measurement for the fine-structure constant $\alpha_{\rm em}$ leads to the SM prediction for electron $g-2$ which is $2.4\sigma$…

高能物理 - 唯象学 · 物理学 2022-04-01 Song Li , Yang Xiao , Jin Min Yang
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