Inflation and majoron dark matter in the seesaw mechanism

Understand

We propose that inflation and dark matter have a common origin, connected to the neutrino mass generation scheme.

• As a model we consider spontaneous breaking of global lepton number within the seesaw mechanism.
• We show that it provides an acceptable inflationary scenario consistent with the recent CMB B-mode observation by the BICEP2 experiment.
• The scheme may also account for the baryon asymmetry of the Universe through leptogenesis for reasonable parameter choices.