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Dark photon constraints from CMB temperature anisotropies

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arxiv 2405.05104 v1 pith:FAGBFYYG submitted 2024-05-08 astro-ph.CO hep-ph

Dark photon constraints from CMB temperature anisotropies

classification astro-ph.CO hep-ph
keywords darkphotonsconstraintsanisotropieslightphotonrangetemperature
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The resonant conversion, within the inter-galactic medium, of regular photons into dark photons amplifies the anisotropy observed in the CMB, thereby imposing stringent constraints on the existence of light dark photons. In this study, we investigate the impact of light dark photons, with masses in the range $3\times 10^{-15} ~\rm{eV} < m_{A'} < 3\times 10^{-12}~\rm{eV}$ on the power spectrum of temperature anisotropies within the cosmic microwave background (CMB) radiation utilizing the state-of-the-art large-volume FLAMINGO cosmological simulations. Our results show that using full Planck data, one can expect the existing constraints on the dark photon mixing parameter in this mass range to improve by an order of magnitude.

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Cited by 2 Pith papers

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

  1. Dark Photons in the Early Universe: From Thermal Production to Cosmological Constraints

    hep-ph 2025-12 conditional novelty 6.0

    Dark photon thermal production is computed analytically, yielding a fixed 4πe/27 ≈ 0.14 resonance-to-inverse-decay ratio and new cosmological limits down to ε~10^-12 over 0.1–6 MeV.

  2. Dark Photons from Red Dwarfs

    hep-ph 2026-06 unverdicted novelty 5.0

    Red dwarf mass-radius data from eclipsing binaries combined with dark-photon-inclusive evolution simulations produce competitive constraints on light dark photons.