Radiative neutrino mass, dark matter and electroweak baryogenesis from the supersymmetric gauge theory with confinement

Abstract

We propose a simple model to explain neutrino mass, dark matter and baryogenesis based on the extended Higgs sector which appears in the low-energy effective theory of a supersymmetric gauge theory with confinement. We here consider the SU(2)${}_H$ gauge symmetry with three flavours of fundamental representations which are charged under the standard SU(3)${}_C\times$ SU(2)${}_L\times$U(1)${}_Y$ symmetry and a new discrete $Z_2$ symmetry. We also introduce $Z_2$-odd right-handed neutrino superfields in addition to the standard model matter superfields. The low-energy effective theory below the confinement scale contains the Higgs sector with fifteen composite superfields, some of which are $Z_2$-odd. When the confinement scale is of the order of ten TeV, electroweak phase transition can be sufficiently of first order, which is required for successful electroweak baryogenesis. The lightest $Z_2$-odd particle can be a new candidate for dark matter, in addition to the lightest $R$-parity odd particle. Neutrino masses and mixings can be explained by the quantum effects of $Z_2$-odd fields via the one-loop and three-loop diagrams. We find a benchmark scenario of the model, where all the constraints from the current neutrino, dark matter, lepton flavour violation and LHC data are satisfied. Predictions of the model are shortly discussed.

19 pages, 5 figures

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• Gravitational waves and Higgs boson couplings for exploring first order phase transition in the model with a singlet scalar field
• Flavour Dependent Gauged Radiative Neutrino Mass Model
• Probing first-order electroweak phase transition via primordial black holes in the effective field theory
• Phenomenology in supersymmetric neutrinophilic Higgs model with sneutrino dark matter
• Electroweak baryogenesis in the three-loop neutrino mass model with dark matter