Leptogenesis and its Electromagnetic Variant

Abstract

We briefly explain how the present baryon-antibaryon asymmetry of the universe could have arisen through leptogenesis, and then discuss a new version of leptogenesis in which CP violation in electromagnetic decays plays the central role.

Comments: 6 pages, 3 figures, 1 photo. To appear in the Proceedings of the 2009 Rencontres de Moriond on Electroweak Interactions and Unified Theories