Observed η_B ~ 6×10⁻¹⁰. Requires B-violation, C+CP violation, out-of-equilibrium. SM CP violation insufficient; leptogenesis + sphaleron transitions.
Observed η_B ~ 6×10⁻¹⁰. Requires B-violation, C+CP violation, out-of-equilibrium. SM CP violation insufficient; leptogenesis + sphaleron transitions.