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arXiv · 2105.00552

Radiative Seesaw Dark Matter

Ernest Ma·Valentina De Romeri
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Abstract

The singlet majoron model of seesaw neutrino mass is appended by one dark Majorana fermion singlet $\chi$ with $L=2$ and one dark complex scalar singlet $\zeta$ with $L=1$. This simple setup allows $\chi$ to obtain a small radiative mass anchored by the same heavy right-handed neutrinos, whereas the one-loop decay of the standard-model Higgs boson to $\chi \chi + \bar{\chi} \bar{\chi}$ provides the freeze-in mechanism for $\chi$ to be the light dark matter of the Universe.

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Ernest Ma, Valentina De Romeri. 2021-05-02. Radiative Seesaw Dark Matter. https://doi.org/10.1103/physrevd.104.055004

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