Leptogenesis at the TeV scale

Details Leptogenesis at the TeV scale Leptogenesis at the TeV scale

2004-06-28

arxiv.org/abs/hep-ph/0406304v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 2 eps figures, moriond.sty

Scientific paper

We consider a generic model with four gauge singlets which generates successfully the right amount of baryon asymmetry through leptogenesis at the TeV scale. It also reproduces left-handed neutrino masses compatible with present data. In the present work, we perform a study of thermal production mechanisms of the lightest right-handed neutrino $N_{1}$ responsible for the lepton asymmetry taking into account all dominant processes (decays, $\Delta L = 1$ and $\Delta L=2$ scatterings) by solving the full Boltzmann equations.

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