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Dirac Neutrinos and Dark Matter Stability from Lepton Quarticity
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abstract
We propose to relate dark matter stability to the possible Dirac nature of neutrinos. The idea is illustrated in a simple scheme where small Dirac neutrino masses arise from a type--I seesaw mechanism as a result of a $Z_4$ discrete lepton number symmetry. The latter implies the existence of a viable WIMP dark matter candidate, whose stability arises from the same symmetry which ensures the Diracness of neutrinos.
Forward citations
Cited by 2 Pith papers
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Sterile neutrino Dark Matter in the minimal Dirac Seesaw
A minimal Dirac seesaw model yields viable sterile-neutrino dark matter via freeze-in, with the right-handed mixing angle θ_R bypassing X-ray bounds.
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Permuted Charged Lepton Correction in the Framework of Dirac Seesaw
An A4-based Dirac seesaw model produces a solar mixing angle at the edge of the experimental range, but this is driven by a freely scanned parameter.
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