Introduction to leptogenesis

Abstract

The discovery of neutrino masses makes leptogenesis a very attractive scenario for explaining the puzzle of the baryon asymmetry of the Universe. We present the basic ingredients of leptogenesis, explain the predictive power of this scenario (and its limitations), and describe recent theoretical developments.

Comments: 7 pages, 1 figure; Invited talk at the 6th Recontres du Vietnam, `Challenges in Particle Astrophysics,' Hanoi, Vietnam, August 6-12, 2006