The Small Observed Baryon Asymmetry from a Large Lepton Asymmetry
Primordial Big-Bang Nucleosynthesis (BBN) tightly constrains the existence of any additional relativistic degrees of freedom at that epoch. However a large asymmetry in electron neutrino number shifts the chemical equilibrium between the neutron and proton at neutron freeze-out and allows such addit...
| Päätekijät: | , , |
|---|---|
| Aineistotyyppi: | Journal article |
| Kieli: | English |
| Julkaistu: |
1999
|