Probing the non-unitarity of the leptonic mixing matrix at the CEPC

Abstract

The non-unitarity of the leptonic mixing matrix is a generic signal of new physics aiming at the generation of the observed neutrino masses. We discuss the Minimal Unitarity Violation (MUV) scheme, an effective field theory framework which represents the class of extensions of the Standard Model (SM) by heavy neutral leptons, and discuss the present bounds on the non-unitarity parameters as well as estimates for the sensitivity of the Circular Electron Positron Collider (CEPC), based on the performance parameters from the preCDR.

9 pages, 2 figures

References in corpus (8)

• Unitarity of the Leptonic Mixing Matrix
• Non-Standard Neutrino Interactions with Matter from Physics Beyond the Standard Model
• Non-unitarity of the leptonic mixing matrix: Present bounds and future sensitivities
• CP-violation from non-unitary leptonic mixing
• Revisiting parity non-conservation in cesium
• Low Energy Measurements of the Weak Mixing Angle
• Probing non-unitary mixing and CP-violation at a Neutrino Factory
• Lepton flavour universality test at the CERN NA62 experiment

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