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arXiv · 2107.01578

FIMP DM in the Extended Hyperchargeless Higgs Triplet Model

Pritam Das·Mrinal Kumar Das·Najimuddin Khan
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Abstract

We perform an exclusive study on the Feebly Interacting Massive Particle (FIMP) dark matter candidate in an extended hyperchargeless ($Y=0$) Higgs triplet model. The additional $Z_2$ odd neutral fermion singlet plays the role of dark matter with support from two other vector-like fermion doublets. The mixing between the neutral component of a doublet and singlet fermions controls the current relic density through the Freeze-in mechanism, whereas the additional doublet fermion helps to get the neutrino mass and mixing angles. We obtain a broad region of the parameter spaces satisfying the current relic density and neutrino mass and mixing angles.

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Pritam Das, Mrinal Kumar Das, Najimuddin Khan. 2021-07-04. FIMP DM in the Extended Hyperchargeless Higgs Triplet Model. https://doi.org/10.1103/physrevd.104.095026

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