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  • Letter
  • Open Access

Naturally resonant dark matter from extra dimensions

Taegyu Lee1,* and Yu-Dai Tsai2,3,4,†

  • *Contact author: taeglee@iu.edu
  • †Contact author: y.tsai@sheffield.ac.uk; yudaitsai.academic@gmail.com
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Phys. Rev. D 114, L011701 – Published 8 July, 2026

DOI: https://doi.org/10.1103/tsq1-bhsz

Abstract

We explore the mass-resonance structure that naturally arises in extradimensional models. The resonance can enhance both dark matter annihilation and self-interactions. We demonstrate such a resonance structure by considering the fermionic dark matter and dark photon models on an S1/(Z2×Z2′) orbifold. We also note that this model embeds a dark matter axial-vector coupling to the dark photon, thereby opening up the viable dark matter parameter space. We then present the unique predictions for direct-detection experiments and accelerator searches.

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Phys. Rev. D 114, L011701– Published 8 July, 2026
  • Received 12 April 2025
  • Accepted 22 April 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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