(Pseudo)-Dirac neutrinos and leptogenesis

Details (Pseudo)-Dirac neutrinos and leptogenesis (Pseudo)-Dirac neutrinos and leptogenesis

2006-09-14

arxiv.org/abs/hep-ph/0609140v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 1 figure, Talk given at the Dark Side of the Universe Conference 2006 (DSU2006), Madrid, Spain, 20-24 June 2006

Scientific paper

10.1063/1.2409106

We discuss how Dirac neutrinos can naturally be generated in supersymmetry
and how they allow for an Affleck-Dine leptogenesis scenario, in which a
left-right asymmetry is generated in the sneutrino sector, the left part of
which is transferred to a baryon asymmetry via sphaleron transitions. No exotic
fields need to be added to the MSSM other than the right-handed neutrino.

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