6533b7d3fe1ef96bd1260af7
RESEARCH PRODUCT
Long-Lived Slepton in the Coannihilation Region and Measurement of Lepton Flavour Violation at LHC
Satoru KanekoSatoru KanekoTakashi ShimomuraJoe SatoOscar VivesMasato Yamanakasubject
PhysicsHistoryParticle physicsLarge Hadron ColliderPhysics::Instrumentation and DetectorsFlavourHigh Energy Physics::PhenomenologyFOS: Physical sciencesComputer Science ApplicationsEducationHigh Energy Physics - Phenomenologymedicine.anatomical_structureHigh Energy Physics - Phenomenology (hep-ph)Orders of magnitude (time)Atlas (anatomy)NeutralinomedicineHigh Energy Physics::ExperimentMinimal Supersymmetric Standard ModelLeptondescription
When the mass difference between the lightest slepton and the lightest neutralino is smaller than the tau mass, the lifetime of the lightest slepton in the constrained Minimal Supersymmetric Standard Model (MSSM) increases in many orders of magnitude with respect to typical lifetimes of other supersymmetric particles. In a general MSSM, the lifetime of the lightest slepton is inversely proportional to the square of the intergenerational mixing in the slepton mass matrices. Such a long-lived slepton would produce a distinctive signature at LHC and a measurement of its lifetime would be relatively simple. Therefore, the long-lived slepton scenario offers an excellent opportunity to study lepton flavour violation at ATLAS and CMS detectors in the LHC and an improvement of the leptonic mass insertion bounds by more than five orders of magnitude would be possible.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-02-12 |