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Photonic Freeze-In

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arxiv 2412.17308 v2 pith:TZNXDVBF submitted 2024-12-23 hep-ph

Peter Cox , Matthew J. Dolan , Frederick J. Hiskens This is my paper
classification hep-ph
keywords darkfreeze-inmattermodelsphotonicproductionscenarioannihilation
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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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