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Gravity-mediated Scalar Dark Matter in Warped Extra-Dimensions

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arxiv 1907.04340 v2 pith:VE4QM2WA submitted 2019-07-09 hep-ph astro-ph.HE

Miguel G. Folgado , Andrea Donini , Nuria Rius This is my paper · ORCID
classification hep-phastro-ph.HE
keywords darkmattermodelon-shellradionscalarstandardabundance
verification ladder T0 review T1 audit T2 compute T3 formal
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We revisit the case of scalar dark matter interacting just gravitationally with the Standard Model (SM) particles in an extra-dimensional Randall-Sundrum scenario. We assume that both, the dark matter and the Standard Model, are localized in the TeV brane and only interact via gravitational mediators, namely the graviton Kaluza-Klein modes and the radion. We analyze in detail the dark matter annihilation channel into two on-shell KK-gravitons, and contrary to previous studies which overlooked this process, we find that it is possible to obtain the correct relic abundance for dark matter masses in the range [1, 10] TeV even after taking into account the strong bounds from LHC Run II. We also consider the impact of the radion contribution (virtual exchange leading to SM final states as well as on-shell production), which does not significantly change our results. Quite interestingly, a sizeable part of the currently allowed parameter space could be tested by LHC Run III and by the High-Luminosity LHC.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Light PIDM in Warped Extra Dimensions

    hep-ph 2025-06 conditional novelty 7.0 of 10

    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.

  2. Probing Confining Dark Sectors with Cosmological Perturbations

    hep-ph 2026-06 unverdicted novelty 6.0 of 10

    Composite dark matter from a keV–MeV confining phase transition sources an IR-enhanced curvature spectrum that competes with free-streaming suppression, yielding concrete CMB and Lyman-α bounds on transition strength ...

  3. Baryon-dark matter coincidence in Randall-Sundrum Model

    hep-ph 2026-01 conditional novelty 6.0 of 10

    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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