Sterile Neutrinos as Dark Matter: Alternative Production Mechanisms in the Early Universe
We study various production mechanisms of sterile neutrinos in the early universe beyond and within the standard model. We obtain the quantum kinetic equations for production and the distribution function of sterile-like neutrinos at freeze-out, from which we obtain free streaming lengths, equations...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-07-01
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| Series: | Universe |
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| Online Access: | https://www.mdpi.com/2218-1997/7/8/264 |