Muon $g-2$ Anomaly and Neutrino Magnetic Moments

Abstract

We show that a unified framework based on an $SU(2{)}_H$ horizontal symmetry which generates a naturally large neutrino transition magnetic moment and explains the XENON1T electron recoil excess also predicts a positive shift in the muon anomalous magnetic moment. This shift is of the right magnitude to be consistent with the Brookhaven measurement as well as the recent Fermilab measurement of the muon $g-2$. A relatively light neutral scalar from a Higgs doublet with mass near 100 GeV contributes to muon $g-2$, while its charged partner induces the neutrino magnetic moment. In contrast to other multi-scalar theories, in the model presented here there is no freedom to control the sign and strength of the muon $g-2$ contribution. We analyze the collider tests of this framework and find that the HL-LHC can probe the entire parameter space of these models.

arXiv comment5 pages + references, 4 figures, expanded discussion on astrophysical bound, matches published version

References in corpus (40)

• The anomalous magnetic moment of the muon in the Standard Model
• Measurement of the fine-structure constant as a test of the Standard Model
• Reevaluation of the Hadronic Contributions to the Muon g-2 and to alpha(MZ)
• The muon $g-2$ and $\alpha (M_Z^2)$: a new data-based analysis
• Complete Tenth-Order QED Contribution to the Muon g-2
• (g-2)_mu and alpha(M_Z^2) re-evaluated using new precise data
• Refinements in electroweak contributions to the muon anomalous magnetic moment
• Reevaluation of the hadronic vacuum polarisation contributions to the Standard Model predictions of the muon g-2 and alpha(mZ) using newest hadronic cross-section data
• Hadronic light-by-light scattering contribution to the muon anomalous magnetic moment revisited
• The $g-2$ of charged leptons, $\alpha (M_Z^2)$ and the hyperfine splitting of muonium
• Hadronic contribution to the muon anomalous magnetic moment to next-to-next-to-leading order
• Two-pion contribution to hadronic vacuum polarization
• The electroweak contributions to (g-2)_μ after the Higgs boson mass measurement
• Excess Electronic Recoil Events in XENON1T
• Remarks on higher-order hadronic corrections to the muon g-2
• Dispersion relation for hadronic light-by-light scattering: two-pion contributions
• The hadronic light-by-light scattering contribution to the muon anomalous magnetic moment from lattice QCD
• Three-pion contribution to hadronic vacuum polarization
• Dispersion relation for hadronic light-by-light scattering: pion pole
• Pseudoscalar-pole contribution to the $(g_{\mu }-2)$: a rational approach
• Short-distance constraints for the HLbL contribution to the muon anomalous magnetic moment
• Lattice calculation of the pion transition form factor with $N_f=2+1$ Wilson quarks
• Particle Physics from Stars
• Precision Tau Physics
• Longitudinal short-distance constraints for the hadronic light-by-light contribution to $(g-2{)}_{\mu }$ with large-$N_c$ Regge models
• Improved predictions for g-2 of the muon and α_{\rm QED}(M_Z^2)
• Neutrino and axion bounds from the globular cluster M5 (NGC 5904)
• Neutrino Energy Loss from the Plasma Process at all Temperatures and Densities
• rho^0-gamma mixing in the neutral channel pion form factor |F_pi|^2 and its role in comparing e^+ e^- with tau spectral functions
• Measurement of Neutrino-Electron Scattering Cross-Section with a CsI(Tl) Scintillating Crystal Array at the Kuo-Sheng Nuclear Power Reactor
• Axion and neutrino bounds improved with new calibrations of the tip of the red-giant branch using geometric distance determinations
• Limiting neutrino magnetic moments with Borexino Phase-II solar neutrino data
• Hadronic light-by-light scattering contribution to the muon anomalous magnetic moment from lattice QCD
• Non-Standard Interactions in Radiative Neutrino Mass Models
• Neutrino Non-Standard Interactions via Light Scalars in the Earth, Sun, Supernovae and the Early Universe
• Particle-physics constraints from the globular cluster M5: Neutrino Dipole Moments
• Comment on "Is Dark Matter with Long-Range Interactions a Solution to All Small-Scale Problems of ΛCDM Cosmology?"
• The RGB tip of galactic globular clusters and the revision of the bound of the axion-electron coupling
• Large Neutrino Magnetic Moments in the Light of Recent Experiments
• Majorana Neutrino Magnetic Moment and Neutrino Decoupling in Big Bang Nucleosynthesis

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