Only the hypercharge-zero fermionic electroweak triplet dark matter survives current relic density, direct detection, and indirect detection constraints among the minimal triplet extensions considered.
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abstract
Neutrino masses can be generated by fermion triplets with TeV-scale mass, that would manifest at LHC as production of two leptons together with two heavy SM vectors or higgs, giving rise to final states such as 2 leptons + 4 jets (that can violate lepton number and/or lepton flavor) or 1 lepton +4 jets +missing transverse energy. We devise cuts to suppress the SM backgrounds to these signatures. Furthermore, for most of the mass range suggested by neutrino data, triplet decays are detectably displaced from the production point, allowing to infer the neutrino mass parameters. We compare with LHC signals of type-I and type-II see-saw.
fields
hep-ph 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
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Twilight of the WIMP: Comprehensive Phenomenology of Electroweak Triplet Dark Matter
Only the hypercharge-zero fermionic electroweak triplet dark matter survives current relic density, direct detection, and indirect detection constraints among the minimal triplet extensions considered.