Radiate Neutrino masses, keV-scale DM and viable Leptogenesis via sub-TeV new physics

In this talk we will present a realization of the Scotogenic model which can explain the observed DM abundance and baryon asymmetry and also the masses of Neutrinos. All this can be achieved within the model without introducing new physics beyond the TeV scale. We achieve this by adding 3 sterile neutrinos N${}_i$ and an additional Higgs doublet $\Sigma$ to the SM and imposing a Z${}_2$ symmetry under which all new particles are charged and whose masses are below the TeV-scale. Our DM candidate is the lightest sterile neutrino N${}_1$ which mass is O(keV) while N${}_2$ and N${}_3$ have masses of O(few GeV). Finally the scalar masses are considered to be at O(TeV). Due to the Z${}_2$ symmetry neutrino masses are generated at one loop level therefore leading to higher possible Yukawa couplings compared to generic seesaw models. The production of DM is governed by Freeze In of N${}_1$ and contributions coming from the decay of N${}_2$. Baryon asymmetry is explained via resonant Leptogenesis based on L-violating decays of $\Sigma$ to N${}_i$ and leptons.