Spin-2 portal dark matter

Nicolás Bernal, Maíra Dutra, Yann Mambrini, Keith Olive, Marco Peloso, Mathias Pierre

Research output: Contribution to journalArticlepeer-review

90 Scopus citations


We generalize models invoking a spin-2 particle as a mediator between the dark sector and the standard model. We show that a massive spin-2 messenger can efficiently play the role of a portal between the two sectors. The dark matter is then produced via a freeze-in mechanism during the reheating epoch. In a large part of the parameter space, production through the exchange of a massive spin-2 mediator dominates over processes involving a graviton with Planck suppressed couplings. We perform a systematic analysis of such models for different values of the spin-2 mass relative to the maximum and the final temperature attained at reheating.

Original languageEnglish (US)
Article number115020
JournalPhysical Review D
Issue number11
StatePublished - Jun 13 2018

Bibliographical note

Publisher Copyright:
© 2018 authors. Published by the American Physical Society.


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