Radiative Seesaw Dark Matter
Ernest Ma, Valentina De Romeri

TL;DR
This paper proposes a radiative seesaw model where a dark Majorana fermion acquires mass via loop processes and is produced as dark matter through Higgs decay, linking neutrino mass and dark matter origin.
Contribution
It introduces a simple extension of the singlet majoron model with dark fermion and scalar singlets, enabling radiative mass generation and Higgs decay-driven dark matter production.
Findings
Dark matter candidate $$ is produced via Higgs decay.
Radiative mass generation links neutrino mass and dark matter.
Model provides a consistent framework for dark matter and neutrino masses.
Abstract
The singlet majoron model of seesaw neutrino mass is appended by one dark Majorana fermion singlet with and one dark complex scalar singlet with . This simple setup allows 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 provides the freeze-in mechanism for to be the light dark matter of the Universe.
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