New insights into axion freeze-in
Abstract Freeze-in via the axion-photon coupling, g ϕγ , can produce axions in the early Universe. At low reheating temperatures close to the minimum allowed value T reh ≈ T BBN ≈ 10 MeV, the abundance peaks for axion masses m ϕ ≈ T reh. Such heavy axions are unstable and subsequently decay, leading...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2024-11-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP11(2024)166 |
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