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Gravity-Mediated Dark Matter at a low reheating temperature

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arxiv 2412.07850 v1 pith:2Q7CWAOD submitted 2024-12-10 hep-ph

Hyun Min Lee , Myeonghun Park , Veronica Sanz This is my paper
classification hep-ph
keywords darkmattergmdmgravity-mediatedopensparticlespossibilitiesreheating
verification ladder T0 review T1 audit T2 compute T3 formal
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We present a new study on the Gravity-Mediated Dark Matter (GMDM) scenario, where interactions between dark matter (DM) and the Standard Model are mediated by spin-two particles. Expanding on this established framework, we explore a novel regime characterized by a low reheating temperature that offers an alternative to the conventional thermal relic paradigm. This approach opens new possibilities for understanding the dynamics of the dark sector, encompassing both the dark matter particles (fermion, scalar and vector) and the spin-two mediators. Our analysis examines the constraints imposed by the relic abundance of DM, collider experiments, and direct detection searches, spanning a wide mass range for the dark sector, from very light to extremely heavy states. This work opens new possibilities for the phenomenology of GMDM.

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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. 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...

  3. Evading Dark Matter Bounds through NLSP-Assisted Freeze-Out with Long-Lived Signatures

    hep-ph 2025-06 conditional novelty 5.0 of 10

    In a U(1)B-L model with four chiral fermions, conversion-driven freeze-out lets a long-lived heavier fermion set the dark matter relic density while direct detection stays weak.

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