6533b871fe1ef96bd12d1a0d
RESEARCH PRODUCT
Neutrino counting experiments and non-unitarity from LEP and future experiments
F. J. EscrihuelaO. G. MirandaL. J. Floressubject
Nuclear and High Energy PhysicsParticle physicsPhysics::Instrumentation and DetectorsPhysics beyond the Standard ModelAstrophysics::High Energy Astrophysical PhenomenaGamma processPontecorvo–Maki–Nakagawa–Sakata matrixFOS: Physical sciences01 natural scienceslaw.inventionHigh Energy Physics - Phenomenology (hep-ph)law0103 physical sciences010306 general physicsColliderPhysicsCondensed Matter::Quantum GasesUnitarity010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyObservablelcsh:QC1-999High Energy Physics - PhenomenologyHigh Energy Physics::ExperimentNeutrinolcsh:Physicsdescription
Non-unitarity of the neutrino mixing matrix is expected in many scenarios with physics beyond the Standard Model. Motivated by the search for deviations from unitary, we study two neutrino counting observables: the neutrino-antineutrino gamma process and the invisible $Z$ boson decay into neutrinos. We report on new constraints for non-unitarity coming from the first of this observables. We study the potential constraints that future collider experiments will give from the invisible decay of the Z boson, that will be measured with improved precision.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-01-21 |