Unitarity of the leptonic mixing matrix

2006/07/31 by Stefan Antusch, S. Antusch, C. Biggio +7 · 2 citations
Physics and Astronomy · #Feynman graph #Formalism (music) #Lepton #Mixing (physics) #Neutrino #Neutrino Physics Research #Neutrino oscillation #Noncommutative and Quantum Gravity Theories #Particle physics theoretical and experimental studies #Pontecorvo–Maki–Nakagawa–Sakata matrix #Unitarity #hep-ex #hep-ph

paper · pdf · doi:10.1088/1126-6708/2006/10/084

published as JHEP0610:084,2006 · Standard Model radiative corrections to the invisible Z width included. Some numerical results modified at the percent level. Updated with latest bounds on the rare tau decay. Physical conculsions unchanged

openalex publication_date 2006/10/30 · arxiv created 2007/06/25 · arxiv updated 2009/12/01 · openalex created_date 2017/07/14 · openalex updated_date 2026/08/05

Abstract

We determine the elements of the leptonic mixing matrix, without assuming unitarity, combining data from neutrino oscillation experiments and weak decays. To that end, we first develop a formalism for studying neutrino oscillations in vacuum and matter when the leptonic mixing matrix is not unitary. To be conservative, only three light neutrino species are considered, whose propagation is generically affected by non-unitary effects. Precision improvements within future facilities are discussed as well.

Citations

• Final NOMAD results on νμ→ντ and νe→ντ oscillations including a new search for ντ appearance using hadronic τ decays
• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
• Non-standard neutrino interactions and neutrino oscillation experiments
• Reconstruction of the neutrino mixing matrix and leptonic unitarity triangles from long-baseline neutrino oscillations
• Measurement of Day and Night Neutrino Energy Spectra at SNO and Constraints on Neutrino Mixing Parameters
• Matter effects andCPviolating neutrino oscillations with nondecoupling heavy neutrinos
• Damping signatures in future neutrino oscillation experiments
• NuTeV anomaly, neutrino mixing, and a heavy Higgs boson
• Z-induced FCNC's and their effects on neutrino oscillations
• Quark-lepton unification and lepton flavor nonconservation from a TeV-scale seesaw neutrino mass texture
• Atmospheric ratio in the multi-GeV energy range
• Weak Interactions with Lepton-Hadron Symmetry
• Measurement of the Total Active 8B Solar Neutrino Flux at the Sudbury Neutrino Observatory with Enhanced Neutral Current Sensitivity
• Neutral currents and tests of three-neutrino unitarity in long-baseline experiments
• Signature of the minimal supersymmetric standard model with right-handed neutrinos in long baseline experiments
• Measurement of the Rate ofνe+d→p+p+e−Interactions Produced byB<mml:mprescripts/>8Solar Neutrinos at the Sudbury Neutrino Observatory
• Matter effects in upward-going muons and sterile neutrino oscillations
• NewCPviolation in neutrino oscillations
• Leptonic unitarity triangle andCPviolation
• Neutrino oscillation physics with a neutrino factory
• Search for Lepton Flavor Violation in the Decayτ±→μ±γ
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)

Cited by

• Non-standard interactions versus non-unitary lepton flavor mixing at a neutrino factory
• Can a non-unitary effect be prominent in neutrino oscillation measurements?