A new calculation of the Landau-Pomeranchuk-Migdal effect for scalar dark matter production shows that it can add up to roughly 27 percent to the predicted relic abundance.
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Multiple Soft Scatterings in Scalar Dark Matter Freeze-In
A new calculation of the Landau-Pomeranchuk-Migdal effect for scalar dark matter production shows that it can add up to roughly 27 percent to the predicted relic abundance.