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Influence of low-energy supersymmetric vector-like quirk particles on W mass increment and muon g–2 anomaly

Chinese Physics C 2024年第3期48卷 39-45页

作者：周平 National Space Science Center Chinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100140China Beijing Key Laboratory of Space Environment Exploration Beijing 100140China

In the low energy realization of the quirk assisted Standard Model,the couplings between the exotic particles"quirks"and gauge bosons may contribute to the W mass and muon g−2 anomaly reported by *** calculate the contributions from supersymmetric quirk particles as an *** imposing the theoretical constraints,we determined that the CDF II W-boson mass increment strictly constrains the mixing and coupling parameters and the quirk mass mF,while the muon g−2 anomaly cannot be solely attributed to the involvement of exotic particles,considering their significantly large masses.

关键词： low-energy supersymmetric vector-like quirk models W mass increment muon g-2 anomaly

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A common origin of muon g-2 anomaly,galaxy Center geV excess and AMS-02 anti-proton excess in the NMSSM

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Science Bulletin 2021年第21期66卷 2170-2174,M0003页

作者： Murat Abdughani Yi-Zhong Fan Lei Feng Yue-Lin Sming Tsai Lei Wu Qiang Yuan Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China Joint Center for Panicle.Nuclear Physics and Cosmology Nanjing University-Purple Mountain ObservatoryNanjing 210093China Department of Physics and Institute of Theoretical Physics Nanjing Normal UniversityNanjing 210023China

The supersymmetric model is one of the most attractive extensions of the Standard Model of particle *** light of the most recently reported anomaly of the muon g-2 measurement by the FermiLab E989 experiment,and the excesses of gamma rays at the galactic center observed by Fermi-LAT space telescope,as well as the antiproton excess observed by the Alpha Magnetic Spectrometer,we propose to account for all these anomalies or excesses in the Next-to-Minimal Supersymmetric Standard Model(NMSSM).Considering various experimental constraints including the Higgs mass,B-physics,collider data,dark matter relic density and direct detections,we find that a~60 geV bino-like neutralino is able to successfully explain all these *** scenario can be sensitively probed by future direct detection experiments.

关键词： Dark matter Supersymmetry muon g-2 anomaly galactic center geV excess Anti-proton excess global analysis

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