Dilaton forbidden dark matter

Appelquist, Thomas; Ingoldby, James; Piai, Maurizio

Abstract

Dilaton effective field theory (dEFT) describes the long distance behavior of certain confining, near-conformal gauge theories that have been studied via lattice computation. Pseudo-Nambu- Goldstone bosons (pNGBs), emerging from the breaking of approximate, continuous, internal symmetries, are coupled to an additional scalar particle, the dilaton, arising from the spontaneous breaking of approximate scale invariance. This effective theory has been employed to study possible extensions of the standard model. In this paper, we propose a complementary role for dEFT, as a description of the dark matter of the Universe, with the pNGBs identified as the dark matter particles. We show that this theory provides a natural implementation of the “forbidden” dark matter mechanism, and we identify regions of parameter space for which the thermal history of dEFT yields the measured dark matter relic density. Published by the American Physical Society 2024

Citation

Appelquist, T., Ingoldby, J., & Piai, M. (2024). Dilaton forbidden dark matter. Physical Review D, 110(3), Article 035013. https://doi.org/10.1103/physrevd.110.035013

• Journal Article Type: Article
• Acceptance Date: Jul 1, 2024
• Online Publication Date: Aug 12, 2024
• Publication Date: Aug 12, 2024
• Deposit Date: Sep 16, 2024
• Publicly Available Date: Sep 16, 2024
• Journal: Physical Review D
• Print ISSN: 2470-0010
• Electronic ISSN: 2470-0029
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 110
• Issue: 3
• Article Number: 035013
• DOI: https://doi.org/10.1103/physrevd.110.035013
• Public URL: https://durham-repository.worktribe.com/output/2865157