Ultra-relativistic freeze-out during reheating produces the observed dark matter abundance across a far wider mass and coupling range than standard WIMP or freeze-in scenarios, with the light-mass region contingent on the cooling history.
To do this, we can saturate the bound in Eq
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Ultra-Relativistic Freeze-Out During Reheating
Ultra-relativistic freeze-out during reheating produces the observed dark matter abundance across a far wider mass and coupling range than standard WIMP or freeze-in scenarios, with the light-mass region contingent on the cooling history.