Leptogenesis and Low Energy CP Violation

Details Leptogenesis and Low Energy CP Violation Leptogenesis and Low Energy CP Violation

2002-04-16

arxiv.org/abs/hep-ph/0204189v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at the RTN meeting : ``Across the Present Energy Frontier : Probing the Origin of Mass'', Corfu, Greece, 10 Septemb

Scientific paper

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.

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