Revisiting big bang nucleosynthesis with a new particle species: effect of co-annihilation with nucleons
Abstract In big bang nucleosynthesis (BBN), the light matter abundance is dictated by the neutron-to-proton (n/p) ratio which is controlled by the standard weak processes in the early universe. Here, we study the effect of an extra particle species ( $$\chi $$ χ ) which co-annihilates with neutron (...
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| Format: | Artigo |
| Sprache: | Inglês |
| Veröffentlicht: |
SpringerOpen
2024-06-01
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| Schriftenreihe: | European Physical Journal C: Particles and Fields |
| Online-Zugang: | https://doi.org/10.1140/epjc/s10052-024-12963-8 |
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