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相关论文: Resolving Muon g-2 Anomaly With Partial Compositen…

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Multi-TeV e+e- collisions provide with a large enough sample of Higgs bosons to enable measurements of its suppressed decays. Results of a detailed study of the determination of the muon Yukawa coupling at 3 TeV, based on full detector…

高能物理 - 实验 · 物理学 2008-11-26 Marco Battaglia

We investigate whether the $2.6\sigma$ deviation from lepton flavour universality in $B^+\to K^+\ell^+\ell^-$ decays recently observed at the LHCb experiment can be explained in minimal composite Higgs models. We show that a visible…

高能物理 - 唯象学 · 物理学 2015-08-10 Christoph Niehoff , Peter Stangl , David M. Straub

The idea of reduction of couplings provides a systematic procedure to search for relations among seemingly unrelated parameters of a renormalizable theory. As a consequence, such reduced theories exhibit more constrained parameter spaces.…

高能物理 - 唯象学 · 物理学 2025-02-28 Wojciech Kotlarski , Gregory Patellis

We review the current status of the Brookhaven muon g - 2 experiment, and it's effects on the SUSY parameter space when combined with dark matter relic density bounds, b->s\gamma and Higgs mass constraints. If the 3\sigma deviation of g - 2…

高能物理 - 唯象学 · 物理学 2017-08-23 R. Arnowitt , B. Dutta

We propose a SUSY scenario to explain the current electron and muon $g-2$ discrepancies without introducing lepton flavor mixings. Threshold corrections to the Yukawa couplings can enhance the electron $g-2$ and flip the sign of the SUSY…

高能物理 - 唯象学 · 物理学 2019-10-02 Motoi Endo , Wen Yin

We have investigated one type of 2HDM, the muon-specific two-Higgs-doublet model, as a solution to the muon ($g-2$) and CDF $W$-boson mass anomaly. The additional Higgs boson couplings to muons are enhanced by $\tan \beta$, while the…

高能物理 - 唯象学 · 物理学 2025-01-23 I. A. Yafi

We propose a simple model of spontaneous lepton number violation with potentially large flavor violating decays, including the possibility that majoron emitting decays, such as $\mu \to e \, J$, saturate the experimental bounds. In this…

高能物理 - 唯象学 · 物理学 2022-02-09 Pablo Escribano , Martin Hirsch , Jacopo Nava , Avelino Vicente

Since both $W$-mass and muon $g-2$ can be affected by the mass splittings among extra Higgs bosons $(H,~A,~H^\pm)$ in a 2HDM, we take a model with $\mu$-$\tau$ LFV interactions to examine the two anomalies reported respectively by CDF II…

高能物理 - 唯象学 · 物理学 2022-09-05 Xiao-Fang Han , Fei Wang , Lei Wang , Jin Min Yang , Yang Zhang

A theoretical analysis of solutions of renormalisation group equations in the MSSM corresponding to the quasi-fixed point conditions shows that the mass of the lightest Higgs boson in this case does not exceed $94\pm 5\text{GeV}$. It means…

高能物理 - 唯象学 · 物理学 2009-08-05 R. B. Nevzorov , M. A. Trusov

The recently published result from the Fermilab "MUON G-2" experiment has confirmed the persistent 3-4 $\sigma$ discrepancy between the experimental result from BNL for the anomalous magnetic moment of the muon, $(g-2)_\mu$ , and its…

高能物理 - 唯象学 · 物理学 2021-11-02 Manimala Chakraborti , Sven Heinemeyer , Ipsita Saha

A composite Higgs boson of 125 GeV mass, only mildly fine-tuned, requires top partners with a semi-perturbative coupling and a mass not greater than about a TeV. We analyze the strong constraints on such picture arising from flavour and…

高能物理 - 唯象学 · 物理学 2015-06-12 Riccardo Barbieri , Dario Buttazzo , Filippo Sala , David M. Straub , Andrea Tesi

We study the possibility of explaining the recently found anomalies in B-meson decays within scenarios with a composite Higgs boson. This class of models provides a natural way to fit the experimental results, interpreting the anomalies as…

高能物理 - 唯象学 · 物理学 2017-05-31 Eugenio Megias , Giuliano Panico , Oriol Pujolas , Mariano Quiros

In this paper, we consider phenomenology of a model with an $L_\mu-L_\tau$ gauge symmetry. Since the muon couples to the $L_\mu-L_\tau$ gauge boson (called $Z''$ boson), its contribution to the muon anomalous magnetic moment (muon g-2) can…

高能物理 - 唯象学 · 物理学 2015-06-17 Keisuke Harigaya , Takafumi Igari , Mihoko M. Nojiri , Michihisa Takeuchi , Kazuhiro Tobe

We studied an extension of the standard model with a fourth generation of fermions to explain the discrepancy in the muon $(g-2)$ and explain the positron excess seen in the AMS-02 experiment. We introduce a gauged $SU(2)_{HV}$ horizontal…

高能物理 - 唯象学 · 物理学 2015-06-19 Gaurav Tomar , Subhendra Mohanty

The observed muon anomalous magnetic moment deviates from the Standard Model predictions. There are two scalar leptoquarks with simultaneous couplings to the quark-muon pairs of both chiralities that can singly explain this discrepancy. We…

高能物理 - 唯象学 · 物理学 2020-07-15 Ilja Doršner , Svjetlana Fajfer , Olcyr Sumensari

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 consider a simple solution to explain the recent diboson excess observed by ATALS and CMS Collaborations in models with custodial symmetry $SU(2)_L \times SU(2)_R \rightarrow SU(2)_c$. The $SU(2)_L$ triplet vector boson $\rho$ with mass…

高能物理 - 唯象学 · 物理学 2015-07-23 Ligong Bian , Da Liu , Jing Shu

In this paper, we consider the Standard Model (SM) with one family of vector-like (VL) leptons, which couple to all three families of the SM leptons. We study the constraints on this model coming from the heavy charged lepton mass bound,…

高能物理 - 唯象学 · 物理学 2017-08-02 Zijie Poh , Stuart Raby

Here we invoke the current and future perspective on muon $g-2$ measurement when asking what the muon $g-2$ could tell about the underlying structure concerning with the hierarchy problem. Here we take up two such models, the presence of…

高能物理 - 唯象学 · 物理学 2007-05-23 M. Hayakawa

The long-standing discrepancy of muon $g-2$ is a hint of new physics beyond the standard model of particle physics. In this letter we show that heavy new physics contribution can be fully tested at a muon collider with center-of-mass energy…

高能物理 - 唯象学 · 物理学 2021-01-06 Wen Yin , Masahiro Yamaguchi