Sterile Neutrinos, Dark Matter, and Pulsar Velocities in Models with a Higgs Singlet
Sterile Neutrinos, Dark Matter, and Pulsar Velocities in Models with a Higgs Singlet
We identify the range of parameters for which the sterile neutrinos can simultaneously explain the cosmological dark matter and the observed velocities of pulsars. To satisfy all cosmological bounds, the relic sterile neutrinos must be produced sufficiently cold. This is possible in a class of models with a gauge-singlet Higgs …