Dark matter from mediator decay in early matter domination
Rouzbeh Allahverdi,
Ngo Phuc Duc Loc,
Jacek K. Osiński
Abstract:We study dark matter production from mediator decays in scenarios with an epoch of early matter domination. Particles that mediate interactions between dark matter and the standard model particles are kinematically accessible to the thermal bath as long as their mass is below the reheating temperature of the Universe after inflation. Decay of on-shell mediators can then lead to copious production of dark matter during early matter domination or a preceding radiation-dominated phase. In particular, for mediator… Show more
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