title: Leptogenesis from supersymmetry breaking.
abstract: We show that soft supersymmetry breaking terms involving the heavy sneutrinos can lead to sneutrino-antisneutrino mixing and to new sources of CP violation, which are present even if a single generation is considered. These terms are naturally present in supersymmetric versions of leptogenesis scenarios, and they induce indirect CP violation in the decays of the heavy sneutrinos, eventually generating a baryon asymmetry. This new contribution can be comparable to or even dominate over the asymmetry produced in traditional leptogenesis scenarios.
authors.affiliation: Department of Physics, Technion-Israel Institute of Technology, Technion City, 32000 Haifa, Israel.
authors.forename: Yuval
authors.initials: Y
authors.lastname: Grossman
authors.forename: Tamar
authors.initials: T
authors.lastname: Kashti
authors.forename: Yosef
authors.initials: Y
authors.lastname: Nir
authors.forename: Esteban
authors.initials: E
authors.lastname: Roulet