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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 anomalous magnetic moment of the muon has recently been measured to be in conflict with the Standard Model prediction with an excess of 2.6 sigma. Taking this result as a measurement of the supersymmetric contribution, we find that at…

高能物理 - 唯象学 · 物理学 2007-05-23 E. A. Baltz , P. Gondolo

The anomalous magnetic moment of the muon has recently been measured to be in conflict with the Standard Model prediction with an excess of 2.6 sigma. Taking the excess at face value as a measurement of the supersymmetric contribution, we…

高能物理 - 唯象学 · 物理学 2008-11-26 E. A. Baltz , P. Gondolo

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

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

A new measurement of the muon anomalous magnetic moment has been reported by the Fermilab Muon g-2 collaboration and shows a $4.2\sigma$ departure from the most precise and reliable calculation of this quantity in the Standard Model.…

高能物理 - 唯象学 · 物理学 2022-01-17 Sebastian Baum , Marcela Carena , Nausheen R. Shah , Carlos E. M. Wagner

The effect of the recently observed 2.6 sigma deviation of the muon anomalous magnetic moment (a_mu = (g_mu -2)/2) from its Standard Model prediction is examined within the framework of supergravity models with grand unification and R…

高能物理 - 唯象学 · 物理学 2007-05-23 R. Arnowitt , B. Dutta , B. Hu , Y. Santoso

In the framework of the Constrained Minimal Supersymmetric Standard Model (CMSSM) we discuss the impact of the recent experimental information, especially from E821 Brookhaven experiment on $g_{\mu}-2$ along with the light Higgs boson mass…

高能物理 - 唯象学 · 物理学 2008-11-26 A. B. Lahanas , D. V. Nanopoulos , V. C. Spanos

The recent measurement of a_\mu =\frac{g_\mu -2}{2} by the E821 Collaboration at Brookhaven deviates from the quoted Standard Model (SM) central value prediction by 2.6\sigma. The difference between SM theory and experiment may be easily…

高能物理 - 唯象学 · 物理学 2009-11-07 Howard Baer , Csaba Balazs , Javier Ferrandis , Xerxes Tata

We present the results of a general analysis of the contributions of the supersymmetry-breaking sector to the muon anomalous magnetic moment in models with a superlight gravitino. We find constraints on the model parameters that are…

高能物理 - 唯象学 · 物理学 2007-05-23 Elena Perazzi

We study the muon anomalous magnetic dipole moment in supersymmetric theories. The impact of the recent Brookhaven E821 experimental measurement on both model-independent and model-dependent supersymmetric parameter spaces is discussed in…

高能物理 - 唯象学 · 物理学 2009-11-07 Stephen P. Martin , James D. Wells

We study the impact of present and future $(g-2)_\mu$ measurements on supersymmetric models. The corrections to $(g-2)_\mu$ become particularly relevant in the presence of light sleptons, charginos and neutralinos, especially in the large…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Carena , G. F. Giudice , C. E. M. Wagner

A brief review is given of the implications of the recent Brookhaven result on the muon anomaly ($a_{\mu}$) for supersymmetry. We focus mainly on the implications of the recent results for the minimal supergravity unified model. We show…

高能物理 - 唯象学 · 物理学 2011-01-27 Utpal Chattopadhyay , Pran Nath

We study the muon anomalous magnetic moment a_\mu = (g_\mu - 2)/2 in a supersymmetric U(1)' model. The neutralino sector has extra components from the superpartners of the U(1)' gauge boson and the extra Higgs singlets that break the U(1)'…

高能物理 - 唯象学 · 物理学 2009-09-15 Vernon Barger , Chung Kao , Paul Langacker , Hye-Sung Lee

The anomalous magnetic moment (g-2) of the muon was measured with a precision of 0.54 ppm in Experiment 821 at Brookhaven National Laboratory. A difference of 3.2 standard deviations between this experimental value and the prediction of the…

核实验 · 物理学 2019-08-15 Frederick Gray

The recent confirmation by the Fermilab-based Muon g-2 experiment of the $(g-2)_\mu$ anomaly has important implications for allowed particle spectra in softly broken supersymmetry (SUSY) models with neutralino dark matter (DM). Generally,…

高能物理 - 唯象学 · 物理学 2021-06-21 Manimala Chakraborti , Leszek Roszkowski , Sebastian Trojanowski

The muon anomalous magnetic moment is one of the most precisely measured quantities in particle physics. In a recent experiment at Brookhaven it has been measured with a remarkable 14-fold improvement of the previous CERN experiment…

高能物理 - 唯象学 · 物理学 2015-05-13 Fred Jegerlehner , Andreas Nyffeler

Inspired by the recent measurements of the muon and electron anomalous magnetic moments, the rapid progress of the LHC search for supersymmetry, and the significantly improved sensitivities of dark matter direct detection experiments, we…

高能物理 - 唯象学 · 物理学 2023-06-13 Junjie Cao , Lei Meng , Yuanfang Yue

We investigate the implications of the recent measurement of muon anomalous magnetic moment for the direct detection of neutralino dark matter in the three different SUSY models: mSUGRA, a model with non-universal Higgs mass, and an SO(10)…

高能物理 - 唯象学 · 物理学 2009-11-07 Yeong Gyun Kim , Mihoko M. Nojiri

The electroweak (EW) sector of the Minimal Supersymmetric Standard Model (MSSM), with the lightest neutralino as Dark Matter (DM) candidate, can account for a variety of experimental data. This includes the DM content of the universe, DM…

高能物理 - 唯象学 · 物理学 2022-01-05 Manimala Chakraborti , Sven Heinemeyer , Ipsita Saha
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