Production of heavy sterile neutrinos from vector boson decay at electroweak temperatures
Production of heavy sterile neutrinos from vector boson decay at electroweak temperatures
In the standard model extended with a seesaw mass matrix, we study the production of sterile neutrinos from the decay of vector bosons at $T\simeq M_{W,Z}$. We derive a general quantum kinetic equation for the production of sterile neutrinos and their effective mixing angles valid in a wide range of …