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Scotoseesaw model implied by dark right-handed neutrinos
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abstract
We find a dark gauge symmetry $U(1)_D$ that transforms nontrivially only for three right-handed neutrinos, $\nu_{1,2,3R}$. The anomaly cancellation demands that they have a dark charge $D=0,-1,+1$ assigned to $\nu_{1,2,3R}$, respectively. The dark charge is broken by two units down to a dark parity, i.e. $U(1)_D\to P_D=(-1)^D$, which stabilizes a dark matter candidate. Interestingly, the model manifestly supplies neutrino masses via joint seesaw and scotogenic mechanisms, called scotoseesaw.
Forward citations
Cited by 2 Pith papers
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Portal Matter and Scotogenic-like Dirac Neutrino Masses
One-loop diagrams from dark-charged scalars and fermions in an E6-like portal matter model generate Dirac neutrino masses near 0.05 eV.
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Generation-separated hypercharges and dark charges: origin of flavor, neutrino masses, and dark matter
Generation-separated U(1) hypercharges plus a dark U(1) can generate hierarchical charged-fermion masses, seesaw/scotoseesaw neutrinos, and Z2-stabilized TeV-scale dark matter from one breaking pattern.
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