Invisible Higgs decay from dark matter freeze-in at stronger coupling
Abstract We study the Higgs boson decay into dark matter (DM) in the framework of freeze-in at stronger coupling.Even though the Higgs-DM coupling is significant, Pulley Cover up to order one, DM does not thermalize due to the Boltzmann suppression of its production at low temperatures.We find that this mechanism leads to observable Higgs decay int