Low-scale leptogenesis and soft supersymmetry breaking

Phys Rev Lett. 2004 Sep 10;93(11):111601. doi: 10.1103/PhysRevLett.93.111601. Epub 2004 Sep 8.

Abstract

We investigate the possibility of low-scale leptogenesis in the minimal supersymmetric standard model extended with right-handed (s)neutrinos. We demonstrate that successful leptogenesis can be easily achieved at a scale as low as approximately TeV where lepton number and CP violation comes from soft supersymmetry breaking terms. The scenario is shown to be compatible with neutrino masses data.