Leptonic Source of Dark Matter and Radiative Majorana or Dirac Neutrino Mass

Abstract

The notion of U(1) lepton number (which may only be softly broken) is applied to models of dark matter which interacts with leptons. Previous scotogenic models of Majorana or Dirac neutrino mass are shown to be derivable in this framework without additional symmetries. Only complete renormalizable theories are considered. An explicit class of models with $Z_n$ ($n\ge 5$) lepton and dark symmetry for Dirac neutrinos is derived, as well as an example of $Z_3$ dark symmetry.

13 pages, 4 figures, 5 tables

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• Radiative Seesaw Dark Matter
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• Non-Abelian Gauge Lepton Symmetry as the Gateway to Dark Matter
• Probing doubly charged scalar bosons from the doublet at future high-energy colliders
• Scotogenic $A_5\to A_4$ Dirac Neutrinos with Freeze-In Dark Matter
• Connecting Dark Gauge Symmetry to the Standard Model
• Theory and phenomenology of Dirac neutrinos
• Nested Radiative Seesaw Masses for Dark Matter and Neutrinos
• Dileptonic Scalar Dark Matter and Exotic Leptons
• New $[SU(3){]}^4$ Realization of Lepton/Dark Symmetry