2021/04/30 by Jin-Lei Yang, Hai-Bin Zhang, Chang-Xin Liu +2
Computer Science · Physics and Astronomy · #Anomalous magnetic dipole moment #Computational Physics and Python Applications #Dipole #Higgs boson #Magnetic dipole #Minimal Supersymmetric Standard Model #Muon #Neutrino Physics Research #Particle physics theoretical and experimental studies #Standard Model (mathematical formulation) #Supersymmetry #hep-ph
paper · pdf · doi:10.1007/jhep08(2021)086
published as JHEP08(2021)086 · 22pages, 8figures
openalex created_date 2021/04/13 · arxiv created 2021/08/03 · openalex publication_date 2021/08/17 · arxiv updated 2021/08/31 · openalex updated_date 2026/08/05
A bstract The difference between the updated experimental result on the muon anomalous magnetic dipole moment and the corresponding theoretical prediction of the standard model on that is about 4 . 2 standard deviations. In this work, we calculate the muon anomalous MDM at the two-loop level in the supersymmetric B − L extension of the standard model. Considering the experimental constraints on the lightest Higgs boson mass, Higgs boson decay modes h → γγ , WW , ZZ , bb <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>b</mml:mi> <mml:mover> <mml:mi>b</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> , τ τ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>τ</mml:mi> <mml:mover> <mml:mi>τ</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> , B rare decay B <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mover> <mml:mi>B</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> → X s γ , and the transition magnetic moments of Majorana neutrinos, we analyze the theoretical predictions of the muon anomalous magnetic dipole moment in the B − L supersymmetric model. The numerical analyses indicate that the tension between the experimental measurement and the standard model prediction is remedied in the B − L supersymmetric model.