Freeze-in dark matter within the seesaw mechanism

Freeze-in dark matter within the seesaw mechanism

Blog Article

We show that the minimal Type-I Seesaw mechanism can successfully account for the observed dark matter abundance in the form of a keV sterile neutrino.This population can be produced by the decay of the heavier neutral leptons, Swim - Mens Suits - Competitive with masses above the electroweak mass scale, while they are in thermal equilibrium in the early Universe (freeze-in).Moreover, the implementation of the relevant phenomenological constraints (relic abundance, indirect detection and structure formation) on Waxed Gilets this model automatically selects a region of the parameter space featuring an approximate lepton number symmetry.