Baryogenesis requires 3 (Sakharov) conditions:
 
1. Out of thermodynamic equilibrium
2. Baryon number violation
3. CP (or equivalently T) violation
 
KM (Kobayashi & Maskawa 1973) mass matrix
characterizes oscillations between hadronic weak eigenstates
 

  ¬
  T


  Cosmic Scale Factor versus Time