I work on a 0nuBB search doing detector R&D, this is spot on, but has 2 extra components. The three elements needed for explaining the asymmetry are:
- CP Violation
- Lepton or Baryon Number violation
- Interactions out of thermal equilibrium
These are the Sakharov conditions for Baryogenesis/Leptogenesis. #1 has been observed via the weak interaction but not in large enough quantities and is not observed via strong interactions, #2 is what proton decay and 0nuBB searches look for, and #3 can be, at least partially, explained by the expansion of the universe as a non-equilibrium interaction.
To get from leptogenesis to baryogenesis requires theretical physics I only barely understand using particles call sphaelerons that convert leptons to baryons.
My mom had an inspirational sign in one of her bathrooms that said, “Embrace this moment, for this moment is your life.” perfectly matched to her decor. She knew exactly what she was doing.