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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

We study the possibility to determine the supersymmetric (SUSY) contribution to the muon anomalous magnetic dipole moment by using ILC measurements of the properties of superparticles. Assuming that the contribution is as large as the…

高能物理 - 唯象学 · 物理学 2013-12-13 Motoi Endo , Koichi Hamaguchi , Sho Iwamoto , Teppei Kitahara , Takeo Moroi

We study SUSY models in which Bino contributions solve the muon g-2 anomaly. The contributions are enhanced by large left-right mixing of the smuons. However, it is constrained by the vacuum stability condition of the slepton--Higgs…

高能物理 - 唯象学 · 物理学 2013-11-21 Motoi Endo , Koichi Hamaguchi , Teppei Kitahara , Takahiro Yoshinaga

We study supersymmetric (SUSY) models in which the muon $g-2$ discrepancy and the dark matter relic abundance are simultaneously explained. The muon $g-2$ discrepancy, or a 3$\sigma$ deviation between the experimental and theoretical…

高能物理 - 唯象学 · 物理学 2017-06-12 Motoi Endo , Koichi Hamaguchi , Sho Iwamoto , Keisuke Yanagi

We study the stability of the electroweak vacuum in the supersymmetric (SUSY) standard model (SM), paying particular attention to its relation to the SUSY contribution to the muon anomalous magnetic moment $a_\mu$. If the SUSY contribution…

高能物理 - 唯象学 · 物理学 2023-06-30 So Chigusa , Takeo Moroi , Yutaro Shoji

The anomalous magnetic moment of the muon has been measured to 0.5 ppm in a series of precision experiments at the Brookhaven Alternating Gradient Synchrotron. The individual results for each sign: a(mu+)= 11 659 204(7)(5) E-10 and a(mu-) =…

高能物理 - 唯象学 · 物理学 2007-05-23 Priscilla Cushman

The Fermilab Muon $g-2$ collaboration recently announced the first result of measurement of the muon anomalous magnetic moment ($g-2$), which confirmed the previous result at the Brookhaven National Laboratory and thus the discrepancy with…

高能物理 - 唯象学 · 物理学 2021-07-14 Motoi Endo , Koichi Hamaguchi , Sho Iwamoto , Teppei Kitahara

We explore the implications of resolving the muon g-2 anomaly in a SU(4)_c x SU(2)_L x SU(2)_R model, where the soft supersymmetry breaking scalar and gaugino masses break the left-right (LR) symmetry. A 2 sigma resolution of the anomaly…

高能物理 - 唯象学 · 物理学 2022-07-13 Mario E. Gomez , Qaisar Shafi , Amit Tiwari , Cem Salih Un

In light of very recent E989 experimental result, we investigate the possibility that heavy sparticles explain the muon g-2 anomaly. We focus on the bino-smuon loop in an effective SUSY scenario, where a light gravitino plays the role of…

高能物理 - 唯象学 · 物理学 2021-07-28 Yuchao Gu , Ning Liu , Liangliang Su , Daohan Wang

Recently, the E821 experiment at the Brookhaven National Laboratory announced their latest result of their muon g-2 measurement which is about 2.6-\sigma away from the standard model prediction. Taking this result seriously, we examine the…

高能物理 - 唯象学 · 物理学 2009-11-07 Shinji Komine , Takeo Moroi , Masahiro Yamaguchi

The new measurement of the anomalous magnetic moment of muon at the Fermilab Muon $g-2$ experiment has strengthened the significance of the discrepancy between the standard model prediction and the experimental observation from the BNL…

高能物理 - 唯象学 · 物理学 2021-10-11 Kwang Sik Jeong , Junichiro Kawamura , Chan Beom Park

We consider the possibility that the muon g-2 anomaly, $\delta(g-2)$, finds its origins in low energy supersymmetry (SUSY). In the general MSSM the parameter space consistent with $\delta(g-2)$ and correct dark matter relic density of the…

高能物理 - 唯象学 · 物理学 2015-07-06 Kamila Kowalska , Leszek Roszkowski , Enrico Maria Sessolo , Andrew J. Williams

We investigate a possibility to explain the discrepancy between the Standard Model predictions and the observed value of the anomalous magnetic moment of the muon within unorthodox SUSY scenarios in which neutralinos are unstable. We start…

高能物理 - 唯象学 · 物理学 2022-05-10 Rafał Masełek

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

A review of the experimental and theoretical determinations of the anomalous magnetic moment of the muon is given. The anomaly is defined by a=(g-2)/2, where the Land\'e g-factor is the proportionality constant that relates the spin to the…

高能物理 - 唯象学 · 物理学 2008-11-26 James P. Miller , Eduardo de Rafael , B. Lee Roberts

We present a detailed analysis on the possible maximal value of the muon (g-2) (= 2 a_mu) within the context of effective SUSY models with R parity conservation. First of all, the mixing among the second and the third family sleptons can…

高能物理 - 唯象学 · 物理学 2011-09-13 S. Baek , P. Ko , J. H. Park

In GUT-scale constrained (GUTc) supersymmetric (SUSY) models, the mass of smuon $\tilde{\mu}_1$ is typically heavier than that of stau $\tilde{\tau}_1$, and stau co-annihilation is a typical annihilation mechanism of dark matter. However,…

高能物理 - 唯象学 · 物理学 2024-01-01 Weichao Li , Haoxue Qiao , Kun Wang , Jingya Zhu

Non-universal gaugino mass models can naturally account for the dark matter relic density via the bulk annihilation process with relatively light bino LSP and right sleptons in the mass range of ~ 100 GeV, while accommodating the observed…

高能物理 - 唯象学 · 物理学 2014-10-14 Siba Prasad Das , Monoranjan Guchait , D. P. Roy

Motivated by the tension between the Higgs mass and muon g-2 in minimal supersymmetric standard model (MSSM), we analyze the muon g-2 in supersymmertic B-L extension of the standard model (BLSSM) with inverse seesaw mechanism. In this…

高能物理 - 唯象学 · 物理学 2016-10-26 Shaaban Khalil , Cem Salih Un

In this paper we calculate the $(g-2)_{\mu}$ contribution due to a light stabilized radion using the radion couplings both to the kinetic energy and the mass term of the muon. We find that the $(g-2)_{\mu}$ contribution due to radion…

高能物理 - 唯象学 · 物理学 2009-11-07 Prasanta Das , Uma Mahanta
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