2006/08/01 by M. Hirsch, M. Malinsky, J. C. Romao +4 · 1 citation
Physics and Astronomy · #Cosmology and Gravitation Theories #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.75.011701
published as Phys.Rev.D75:011701,2007 · 4 pages, 5 figures
arxiv created 2006/08/01 · openalex publication_date 2007/01/29 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
We consider an extended supersymmetric SO(10) seesaw model with only doublet Higgs scalars, in which neutrino masses are suppressed by the scale of D-parity violation. Leptogenesis can occur at the TeV scale through the decay of a singlet \ensuremathΣ, thereby avoiding the gravitino crisis. Washout of the asymmetry can be effectively suppressed by the absence of direct couplings of \ensuremathΣ to leptons.