Type II Seesaw leptogenesis

The Type II Seesaw Mechanism provides a minimal framework to explain the neutrino masses involving introduction of single triplet Higgs Standard Model. However, this simple extension was believed be unable successfully observed baryon asymmetry universe through Leptogenesis. In our previous work (Phys. Rev. Lett. 128, 141801), we demonstrated that alone can simultaneously generate and while playing role in setting up Inflation. This is achievable with mass as low 1 TeV, predicts neutral component obtains small vacuum expectation value $v_\Delta < 10 $ keV. We find model has very rich phenomenology tested by various terrestrial experiments well astronomical observations. Particularly, show successful parameter region may probed at future 100 TeV collider, upcoming lepton flavor violation such Mu3e, neutrinoless double beta decay experiments. Additionally, tensor-to-scalar ratio from inflationary scenario will LiteBIRD telescope, observable isocurvature perturbations produced for some choices. article, present all technical details calculations further discussion its phenomenological implications.