Journal article
Technically natural nonsupersymmetric model of neutrino masses, baryogenesis, the strong CP problem, and dark matter
JD Clarke, RR Volkas
Physical Review D | Published : 2016
Abstract
We describe a minimal extension of the standard model (SM) by three right-handed neutrinos, a scalar doublet, and a scalar singlet (the "νDFSZ") which serves as an existence proof that weakly coupled high-scale physics can naturally explain phenomenological shortcomings of the SM. The νDFSZ can explain neutrino masses, baryogenesis, the strong CP problem, and dark matter, and remains calculably natural despite a hierarchy of scales up to ∼1011 GeV. It predicts a SM-like Higgs boson (maximally) TeV-scale scalar states, intermediate-scale hierarchical leptogenesis (105 GeV MN 107 GeV), and axionic dark matter.
Grants
Funding Acknowledgements
This work was supported in part by the Australian Research Council. We thank Robert Foot for useful input (and anecdotes).