Right-handed neutrino dark matter, neutrino masses, and non-standard cosmology in a 2HDM
Arcadi, G, Profumo, S, Queiroz, FS, Siqueira, C
Abstract
We explore the dark matter phenomenology of a weak-scale right-handed\nneutrino in the context of a Two Higgs Doublet Model. The expected signal at\ndirect detection experiments is different from the usual spin-independent and\nspin-dependent classification since the scattering with quarks depends on the\ndark matter spin. The dark matter relic density is set by thermal freeze-out\nand in the presence of non-standard cosmology, where an Abelian gauge symmetry\nis key for the dark matter production mechanism. We show that such symmetry\nallows us to simultaneously address neutrino masses and the flavor problem\npresent in general Two Higgs Doublet Model constructions. Lastly, we outline\nthe region of parameter space that obeys collider, perturbative unitarity and\ndirect detection constraints.