A two loop radiative neutrino model

Abstract

We explore the possibility to explain a bosonic dark matter candidate with a gauge singlet inside the loop to generate the neutrino mass matrix at two-loop level. The mass matrix is suppressed by a small mixing that comes from the bound on direct detection experiments of the dark matter, and equivalent of the three-loop neutrino model due to the small mixing between neutral inert bosons. Here, our setup is the Zee-Babu type scenario with Z(3) discrete symmetry, in which we consider the neutrino oscillation data, lepton flavor violations, muon g - 2, mu - e conversion rate, lepton flavor-changing and conserving Z boson decay and bosonic dark matter candidate. (C) 2019 The Authors. Published by Elsevier B.V.