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arXiv · 2412.17308

Photonic Freeze-In

Peter Cox·Matthew J. Dolan·Frederick J. Hiskens
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Abstract

We present a new scenario of freeze-in, where the dark matter is produced exclusively via the annihilation of photons. We study fermionic and scalar dark matter models with a focus on cosmological histories with low reheat temperatures. Photonic freeze-in can be probed via direct detection, dark matter production in SN1987A, and via the production of new electromagnetically charged states at the Large Hadron Collider. We briefly discuss UV-complete models that can realise this scenario.

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Peter Cox, Matthew J. Dolan, Frederick J. Hiskens. 2024-12-23. Photonic Freeze-In. https://doi.org/10.1103/4w66-9tqz

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