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A theory for scotogenic dark matter stabilised by residual gauge symmetry

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arxiv 1909.06386 v2 pith:7B7NUTP2 submitted 2019-09-13 hep-ph

classification hep-ph
keywords darkmatterotimessymmetrybetagaugenaturallyresidual
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abstract

Dark matter stability can result from a residual matter-parity symmetry, following naturally from the spontaneous breaking of the gauge symmetry. Here we explore this idea in the context of the $\mathrm{SU(3)_c \otimes SU(3)_L \otimes U(1)_X \otimes U(1)_{N}}$ electroweak extension of the standard model. The key feature of our new scotogenic dark matter theory is the use of a triplet scalar boson with anti-symmetric Yukawa couplings. This naturally implies that one of the light neutrinos is massless and, as a result, there is a lower bound for the $\rm 0\nu\beta\beta$ decay rate.

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  1. Dark Matter Escaping Direct Detection Runs into Higgs Mass Hierarchy Problem

    hep-ph 2024-12 conditional novelty 5.0 of 10

    TeV-scale Higgs-portal dark matter produces Higgs mass corrections larger than the measured Higgs mass, which excludes most such WIMPs except near half the Higgs mass.

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