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

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.

version to appear in NPB

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• Constraining the Georgi-Machacek Model with a Light Higgs
• More Constraints on the Georgi-Machacek Model
• Interpretation of 95 GeV Excess within the Georgi-Machacek Model in Light of Positive Definiteness Constraints
• Neutrino magnetic moment and inert doublet dark matter in a Type-III radiative scenario
• A Scotogenic Model as a Prototype for Leptogenesis with One Single Gauge Singlet
• Correlating neutrino magnetic moment and scalar triplet dark matter to enlighten XENONnT bounds in a Type-II model
• Triplet fermion WIMP dark matter in the general supersymmetric Georgi-Machacek model
• Positive definiteness constraints of effective scalar potential in Georgi-Machacek Model