Baryogenesis from the weak scale to the grand unification scale

Understand

We review the current status of baryogenesis with emphasis on electroweak baryogenesis and leptogenesis.

• The first detailed studies were carried out for SU(5) GUT models where CP-violating decays of leptoquarks generate a baryon asymmetry.
• These GUT models were excluded by the discovery of B+L violating sphaleron processes at high temperatures.
• Yet a new possibility emerged, electroweak baryogenesis.