6533b833fe1ef96bd129b9f5
RESEARCH PRODUCT
Supersymmetric type-III seesaw mechanism: Lepton flavor violation and LHC phenomenology
Florian StaubWerner PorodMartin HirschChristian Weisssubject
Nuclear and High Energy PhysicsParticle physicsMassesPhysics beyond the Standard Model01 natural sciences0103 physical sciencesRoot-S=7 tev010306 general physicsRight-handed neutrinosPhysicsLarge Hadron ColliderElectroweak010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyElectroweak interactionFísicaNon-conservationSupersymmetrySeesaw mechanismUnificationGrand unified theoriesHigh Energy Physics::ExperimentNeutrinoModel higgs-bosonDecaysPhenomenology (particle physics)LeptonStandard modeldescription
We study a supersymmetric version of the type-III seesaw mechanism considering two variants of the model: a minimal version for explaining neutrino data with only two copies of 24 superfields and a model with three generations of 24-plets. The latter predicts, in general, rates for mu -> e gamma inconsistent with experimental data. However, this bound can be evaded if certain special conditions within the neutrino sector are fulfilled. In the case of two 24-plets, lepton flavor violation constraints can be satisfied much more easily. After specifying the corresponding regions in the minimal supergravity parameter space, we show that under favorable conditions one can test the corresponding flavor structures in the leptonic sector at the LHC. For this we perform Monte Carlo studies for the signals, also taking into account the supersymmetry background. We find that it is only of minor importance for the scenarios studied here.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-01-23 |