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arXiv · 2011.13551

Common origin of radiative neutrino mass, dark matter and leptogenesis in scotogenic Georgi-Machacek model

Shao-Long Chen·Amit Dutta Banik·Ze-Kun Liu
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Abstract

We explore the phenomenology of the Georgi-Machacek model extended with two Higgs doublets and vector fermion doublets invariant under $SU(2)_L \times U(1)_Y\times \mathcal {Z}_4 \times \mathcal {Z}_2$. The $\mathcal {Z}_4$ symmetry is broken spontaneously while the imposed $\mathcal {Z}_2$ symmetry forbids triplet fields to generate any vacuum expectation value and leading to an inert dark sector providing a viable candidate for dark matter and generate neutrino mass radiatively. Another interesting feature of the model is leptogenesis arising from decay of vector-like fermions. A detailed study of the model is pursued in search for available parameter space consistent with the theoretical and experimental observations for dark matter, neutrino physics, flavor physics, matter-antimatter asymmetry in the Universe.

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Shao-Long Chen, Amit Dutta Banik, Ze-Kun Liu. 2020-11-27. Common origin of radiative neutrino mass, dark matter and leptogenesis in scotogenic Georgi-Machacek model. https://doi.org/10.1016/j.nuclphysb.2021.115394

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