Scotoseesaw model implied by dark right-handed neutrinos

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.

34 pages, 7 figures, 1 table; substantially improved with references added; matches published version in PRD

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Cited by in corpus (4)

• Dirac Scoto Inverse-Seesaw from $A_4$ Flavor Symmetry
• Scotoseesaw mechanism from a $Z_3$ symmetry of matter
• Dark symmetry implication for right-handed neutrinos
• Implications of a dark grand unification