Leptogenesis and Low Energy CP Violation
Abstract
We discuss the possibility of relating the size and sign of the observed baryon asymmetry of the universe to CP violation observable at low energies, in a framework where the observed baryon asymmetry is produced by leptogenesis through out of equilibrium decay of heavy Majorana neutrinos. We have shown that although in general such a connection cannot be established, there are specific frameworks where a link does exist. Furthermore, we identify the CP violating phases relevant to leptogenesis and those relevant for low energy CP violation and build weak basis invariant conditions for CP conservation.
Keywords
Cite
@article{arxiv.hep-ph/0204189,
title = {Leptogenesis and Low Energy CP Violation},
author = {G. C. Branco and T. Morozumi and B. M. Nobre and M. N. Rebelo},
journal= {arXiv preprint arXiv:hep-ph/0204189},
year = {2007}
}
Comments
Talk given at the RTN meeting : ``Across the Present Energy Frontier : Probing the Origin of Mass'', Corfu, Greece, 10 September- 13 September 2001