Leptogenesis
Abstract
Leptogenesis is a class of scenarios where the baryon asymmetry of the Universe is produced from a lepton asymmetry generated in the decays of a heavy sterile neutrino. We explain the motivation for leptogenesis. We review the basic mechanism, and describe subclasses of models. We then focus on recent developments in the understanding of leptogenesis: finite temperature effects, spectator processes, and in particular the significance of flavor physics.
Keywords
Cite
@article{arxiv.0802.2962,
title = {Leptogenesis},
author = {Sacha Davidson and Enrico Nardi and Yosef Nir},
journal= {arXiv preprint arXiv:0802.2962},
year = {2008}
}
Comments
111 pages, 8 figures. Added Sect. 3 on anomalous B+L violation. Corrected equations (6.30) and (6.31). Added Sect. 9.1 with a simple example of the effects of flavours. Revised Sect. 10.1 on susy leptogenesis. Added several references, and other minor improvements. To be published in Physics Reports