Scalar relics from the hot Big Bang

2024/10/29 by David Cyncynates, Olivier Simon, Cyncynates, David +1 · 7 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph)

paper · pdf · doi:10.48550/arxiv.2410.22409

openalex publication_date 2024/10/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this Letter, we motivate the fact that couplings between a scalar field and the Standard Model with strengths 10^-6(m_ϕ/\rm eV)^-1/4 relative to gravity yield the total measured cosmological dark matter abundance over a broad mass range of 10^-12 to 10¹⁴ \rmeV. Remarkably, this result holds with minimal sensitivity to whether the scalar couples to electrons, photons, hadrons, or other particles at laboratory energy scales, thereby linking fifth force experiments to the search for dark matter.

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• Ultralight Dilatonic Dark Matter
• Leading bounds on micro- to picometer fifth forces from neutron star cooling

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