Scotogenic Z2 or U(1)D model of neutrino mass with Δ(27) symmetry

The scotogenic model of radiative neutrino mass with Z(2) or U(1)(D) dark matter is shown to accommodate Delta(27) symmetry naturally. The resulting neutrino mass matrix is identical to either of two forms, one proposed in 2006, the other in 2008. These two structures are studied in the context of present neutrino data, with predictions of CP violation and neutrinoless double beta decay. (C) 2014 Elsevier B.V. This is an open access article under the CC BY license.