(Pseudo)-Dirac neutrinos and leptogenesis
arXiv:hep-ph/0609140 · doi:10.1063/1.2409106
Abstract
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.
7 pages, 1 figure, Talk given at the Dark Side of the Universe Conference 2006 (DSU2006), Madrid, Spain, 20-24 June 2006