Muon anomalous Muon anomalous Muon anomalous magnetic dipole moment in theμνSSM  

作　　者：Hai-Bin Zhang Chang-Xin Liu Jin-Lei Yang Tai-Fu Feng 张海斌;刘长鑫;杨金磊;冯太傅(Department of Physics,Hebei University,Baoding 071002,China;Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province,Baoding 071002,China;CAS Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;College of Physics,Chongqing University,Chongqing 400044,China;Department of Physics,Guangxi University,Nanning,530004,China)

机构地区：[1]Department of Physics,Hebei University,Baoding 071002,China [2]Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province,Baoding 071002,China [3]CAS Key Laboratory of Theoretical Physics,Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190,China [4]School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China [5]College of Physics,Chongqing University,Chongqing 400044,China [6]Department of Physics,Guangxi University,Nanning,530004,China

出　　处：《Chinese Physics C》2022年第9期103-114,共12页中国物理C（英文版）

基　　金：the National Natural Science Foundation of China(11705045,11535002,12075074);the Natural Science Foundation for Distinguished Young Scholars of Hebei Province(A2022201017);the Natural Science Foundation of Guangxi Autonomous Region(2022GXNSFDA035068);the youth top-notch talent support program of the Hebei Province,and Midwest Universities Comprehensive Strength Promotion project。

摘　　要：Recently,the Muon g-2 experiment at Fermilab measured the muon anomalous magnetic dipole moment(MDM),aμ=(gμ-2)/2,and reported that the new experimental average increases the difference between the experiment and the standard model(SM)prediction to 4.2σ.In this work,we reanalyze the muon anomalous MDM at the two-loop level in theμfrom theνSupersymmetric Standard Model(μνSSM)combined with the updated experimental average.TheμνSSM can explain the current difference between the experimental measurement and the SM theoretical prediction for the muon anomalous MDM,constrained by the 125 GeV Higgs boson mass and decays,the rare decayˉB→Xsγ,and so on.We also investigate the anomalous MDM of the electron and tau lepton,ae=(ge-2)/2 and aτ=(gτ-2)/2,at the two-loop level in theμνSSM.In addition,the decaying of the 125 GeV Higgs boson into a pair of charged leptons in theμνSSM is analyzed.

关 键 词：SUPERSYMMETRY magnetic dipole moment Higgs boson decays 

分 类 号：O572.323[理学—粒子物理与原子核物理]