Volume 364 - European Physical Society Conference on High Energy Physics (EPS-HEP2019) - Dark Matter
A radiative seesaw model with GeV singlet-doublet fermion and TeV triplet scalar dark matter
M. Klasen,* J. Fiaschi, S. May
*corresponding author
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Pre-published on: June 10, 2020
Published on:
Abstract
By extending the Standard Model with singlet-doublet fermions and triplet scalars, all odd under a new $Z_2$ symmetry, we introduce a radiative seesaw model that can simultaneously account for dark matter, explain the existence of neutrino masses and allow for gauge coupling unification. We explore the viable parameter space of the model after imposing collider, Higgs mass, dark matter, neutrino mass and lepton flavour violation constraints. We find that dark matter in this model is fermionic for masses below about 1 TeV and scalar above and observe a high degree of complementarity between direct detection and lepton flavour violation experiments, which should soon allow to fully probe the fermionic dark matter sector and at least partially the scalar dark matter sector.
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