6533b828fe1ef96bd1289003
RESEARCH PRODUCT
Dark matter and LHC phenomenology in a left-right supersymmetric model
Avelino VicenteMartin S. HirschWerner PorodJorge C. RomãoFlorian StaubJ. N. Estevessubject
PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyFísicaFOS: Physical sciencesSuperpartnerSupersymmetry01 natural sciencesHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesNeutralinoHiggs bosonHigh Energy Physics::ExperimentNeutrino010306 general physicsPhenomenology (particle physics)LeptonMinimal Supersymmetric Standard Modeldescription
Left-right symmetric extensions of the Minimal Supersymmetric Standard Model can explain neutrino data and have potentially interesting phenomenology beyond that found in minimal SUSY seesaw models. Here we study a SUSY model in which the left-right symmetry is broken by triplets at a high scale, but significantly below the GUT scale. Sparticle spectra in this model differ from the usual constrained MSSM expectations and these changes affect the relic abundance of the lightest neutralino. We discuss changes for the standard stau (and stop) co-annihilation, the Higgs funnel and the focus point regions. The model has potentially large lepton flavour violation in both, left and right, scalar leptons and thus allows, in principle, also for flavoured co-annihilation. We also discuss lepton flavour signals due to violating decays of the second lightest neutralino at the LHC, which can be as large as 20 fb$^{-1}$ at $\sqrt{s}=14$ TeV.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-09-29 | Journal of High Energy Physics |