Radiative leptogenesis in minimal seesaw models

Details Radiative leptogenesis in minimal seesaw models Radiative leptogenesis in minimal seesaw models

2005-01-24

arxiv.org/abs/hep-ph/0501221v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at NOW 2004: Neutrino Oscillation Workshop, Conca Specchiulla, Otranto, Italy, 11-17 Sep 2004

Scientific paper

10.1016/j.nuclphysbps.2005.04.02

In the framework of seesaw models with only two heavy Majorana neutrinos,
nonzero leptonic asymmetries can be radiatively generated when exact heavy
neutrino mass degeneracy ($M_1=M_2=M$) is imposed at a scale $\Lambda_D > M$.
For a specific case, we show that an acceptable value for the baryon asymmetry
of the Universe can be obtained considering thermal leptogenesis.

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