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arXiv · 2104.10324

Gauged Lepton Number, Dirac Neutrinos, Dark Matter, and Muon $g-2$

Ernest Ma
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Abstract

Lepton number is promoted to an $U(1)_L$ gauge symmetry in a simple extension of the standard model. The spontaneous breaking of $U(1)_L$ by three units allows a conserved $Z_3^L$ lepton symmetry to remain, guaranteeing that neutrinos are Dirac fermions, which acquire naturally small masses from a previously proposed mechanism. Dark matter appears as a singlet scalar, with dark symmetry $Z_3^D$ derivable from $Z_3^L$. Muon $g-2$ may be explained.

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Ernest Ma. 2021-04-21. Gauged Lepton Number, Dirac Neutrinos, Dark Matter, and Muon $g-2$. https://doi.org/10.1016/j.physletb.2021.136402

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