Scalar dark matter search from the extended $\nu$THDM

Abstract

We consider a neutrino Two Higgs Doublet Model ($\nu$THDM) in which neutrinos obtain {\it naturally} small Dirac masses from the soft symmetry breaking of a global $U(1{)}_X$ symmetry. We extended the model so the soft term is generated by the spontaneous breaking of $U(1{)}_X$ by a new scalar field. The symmetry breaking pattern can also stabilize a scalar dark matter candidate. After constructing the model, we study the phenomenology of the dark matter: relic density, direct and indirect detection.

16 pages, 6 figures, minor revision in the model and analyses, published version

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• micrOMEGAs4.1: two dark matter candidates
• Vacuum Stability of a General Scalar Potential of a Few Fields
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Cited by in corpus (5)

• The Hubble tension and a renormalizable model of gauged neutrino self-interactions
• Right-handed Neutrino Dark Matter, Neutrino Masses, and non-Standard Cosmology in a 2HDM
• A connection between flavour anomaly, neutrino mass, and axion
• Lepton specific two-Higgs-doublet model based on a $U(1{)}_X$ gauge symmetry with dark matter
• Sterile Neutrino Portal Dark Matter in $\nu$THDM