6533b82efe1ef96bd129349c
RESEARCH PRODUCT
Thermal leptogenesis in extended supersymmetric seesaw model
Utpal SarkarMartin HirschJorge C. RomãoMichal MalinskyJosé W. F. Vallesubject
PhysicsNuclear and High Energy PhysicsParticle physicsHigh Energy Physics::PhenomenologyFOS: Physical sciencesFísicaSupersymmetryBaryogenesisHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Seesaw molecular geometryLeptogenesisHiggs bosonHigh Energy Physics::ExperimentGravitinoNeutrinoComputer Science::DatabasesLeptondescription
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 Sigma, thereby avoiding the gravitino crisis. Washout of the asymmetry can be effectively suppressed by the absence of direct couplings of Sigma to leptons.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-08-01 | Physical Review D |