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Kaluza-Klein FIMP Dark Matter in Warped Extra-Dimensions
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We study for the first time the case in which Dark Matter (DM) is made of Feebly Interacting Massive Particles (FIMP) interacting just gravitationally with the standard model particles in an extra-dimensional Randall-Sundrum scenario. We assume that both the dark matter and the standard model are localized in the IR-brane and only interact via gravitational mediators, namely the graviton, the Kaluza-Klein gravitons and the radion. We found that in the early Universe DM could be generated via two main processes: the direct freeze-in and the sequential freeze-in. The regions where the observed DM relic abundance is produced are largely compatible with cosmological and collider bounds.
Forward citations
Cited by 3 Pith papers
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Light PIDM in Warped Extra Dimensions
A UV-Dark-IR brane construction in warped 5D space allows light (MeV-TeV) purely gravitational dark matter to freeze in with TeV-scale reheating temperatures.
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Baryon-dark matter coincidence in Randall-Sundrum Model
Graviton- and radion-mediated freeze-in in a Randall-Sundrum model can match the observed dark matter relic abundance, and TeV-scale resonant leptogenesis through the same portals can match the observed baryon asymmet...
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