Electron and muon $(g-2)$ in the B-LSSM

Abstract

The theoretical predictions in the standard model (SM) and measurements on the anomalous magnetic dipole moments (MDM) of muon and electron have great precision, hence the MDMs of muon and electron have close relation with the new physics (NP) beyond the SM. Recently, a negative $\sim 2.4\sigma$ discrepancy between the measured electron MDM and the SM prediction results from a recent improved determination of the fine structure constant. Combined with the long-lasting muon MDM discrepancy which is about $\sim 3.7\sigma$, it is difficult to explain both the magnitude and opposite signs of the deviations in a consistent model, without introducing large flavour-violating effects. The analysis shows that they can be explained in the minimal supersymmetric extension (MSSM) of the SM with local $B-L$ gauge symmetry (B-LSSM). Comparing with the MSSM, new parameters in the B-LSSM can affect the theoretical predictions on lepton MDMs, and the effects of them are explored.

18 pages, 6figures

References in corpus (11)

• Measurement of the fine-structure constant as a test of the Standard Model
• The Minimal Set of Electroweak Precision Parameters
• Low scale B-L extension of the Standard Model at the LHC
• Contributions of axion-like particles to lepton dipole moments
• Spontaneous R-Parity Breaking and Left-Right Symmetry
• The Fate of R-Parity
• Lepton-flavor violation and two loop electroweak corrections to $(g-2{)}_{\mu }$ in the B-L symmetry SSM
• Enhancing $h\to \gamma \gamma$ with staus in SUSY models with extended gauge sector
• Proposal for generalised Supersymmetry Les Houches Accord for see-saw models and PDG numbering scheme
• Search for Mono-Higgs Signals at the LHC in the B-L Supersymmetric Standard Model
• Leptogenesis in B-L gauged SUSY with MSSM Higgs sector

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• Non-Abelian Vector Dark Matter and Lepton $g-2$
• Neutrino masses and magnetic moments of electron and muon in the Zee Model
• Higgs boson decays with lepton flavor violation in the $B-L$ symmetric SSM
• Explaining the Muon g-2 Anomaly in Deflected AMSB for NMSSM
• Leptonic $g-2$ anomaly in an extended Higgs sector with vector-like leptons
• Muon conversion to an eletron in nuclei in the $B-L$ symmetric SSM