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ν DFSZ: a technically natural non-supersymmetric model of neutrino masses, baryogenesis, the strong CP problem, and dark matter

We describe a minimal extension of the standard model by three right-handed neutrinos, a scalar doublet, and a scalar singlet (the “ ν DFSZ”) which serves as an existence proof that weakly coupled high-scale physics can naturally explain phenomenological shortcomings of the SM. The ν DFSZ can explain neutrino masses, baryogenesis, the strong CP problem, and dark matter, and remains calculably natural despite a hierarchy of scales up to ∼ 10 11 GeV. It predicts a SM-like Higgs boson, (maximally) TeV-scale scalar states, intermediate-scale hierarchical leptogenesis (10 5 GeV (cid:46) M N (cid:46) 10 7 GeV), and axionic dark matter.