PT Journal
AU Arbelaez, C
   Carcamo Hernandez, AE
   Cepedello, R
   Hirsch, M
   Kovalenko, S
TI Radiative type-I seesaw neutrino masses
SO Physical Review D
JI Phys. Rev. D
PY 2019
BP 115021
EP 7pp
VL 100
IS 11
DI 10.1103/PhysRevD.100.115021
LA English
AB We discuss a radiative type-I seesaw. In these models, the radiative generation of Dirac neutrino masses allows to explain the smallness of the observed neutrino mass scale for rather light right-handed neutrino masses in a type-1 seesaw. We first present the general idea in a model-independent way. This allows us to estimate the typical scale of right-handed neutrino mass as a function of the number of loops. We then present two example models, at the one- and two-loop level, which we use to discuss neutrino masses and lepton-flavor-violating constraints in more detail. For the two-loop example, right-handed neutrino masses must lie below 100 GeV, thus making this class of models testable in heavy neutral lepton searches.
ER