Kaluza-Klein FIMP dark matter in warped extra-dimensions

Nicolás Bernal (Centro de Investigaciones, Universidad Antonio Nariño, Carrera 3 Este # 47A-15, Bogotá, Colombia) ; Andrea Donini (Instituto de Física Corpuscular, Universidad de Valencia and CSIC, Edificio Institutos Investigación, Catedrático Jose Beltrán 2, Paterna, 46980, Spain) ; Miguel Folgado (Instituto de Física Corpuscular, Universidad de Valencia and CSIC, Edificio Institutos Investigación, Catedrático Jose Beltrán 2, Paterna, 46980, Spain) ; Nuria Rius (Instituto de Física Corpuscular, Universidad de Valencia and CSIC, Edificio Institutos Investigación, Catedrático Jose Beltrán 2, Paterna, 46980, Spain)

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.

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Published on:
22 September 2020
Publisher:
Springer
Published in:
Journal of High Energy Physics , Volume 2020 (2020)
Issue 9
Pages 1-31
DOI:
https://doi.org/10.1007/JHEP09(2020)142
arXiv:
2004.14403
Copyrights:
The Author(s)
Licence:
CC-BY-4.0

Fulltext files: