Deviations from tri-bimaximal mixing

2009/01/02 by Werner Rodejohann · 1 citation
Chemistry · Physics and Astronomy · #Mass Spectrometry Techniques and Applications #Mixing (physics) #Neutrino Physics Research #Physics #hep-ex #hep-ph

paper · pdf · doi:10.1016/j.nuclphysbps.2009.02.078

3 pages. Talk given at NOW2008, Conca Specchiulla, Otranto, Italy, September 6-13, 2008

arxiv created 2009/01/02 · openalex publication_date 2009/03/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Current data indicates that lepton mixing is very close to the tri-bimaximal mixing scenario. In general, however, one expects deviations from any mixing scenario. We discuss several examples to perturb tri-bimaximal mixing, namely soft breaking, renormalization group running and charged lepton corrections. We also present a convenient parametrization of the PMNS matrix which takes advantage of the apparently close to tri-bimaximal mixing pattern. Finally, it is discussed how to generate values of U_e3 which correspond to the recently found hint for non-zero U_e3.

Citations

• Unitary Parametrization of Perturbations to Tribimaximal Neutrino Mixing
• Symmetries and generalisations of tri-bimaximal neutrino mixing
• Parameterizing the lepton mixing matrix in terms of deviations from tri-bimaximal mixing
• Nearly tri-bimaximal neutrino mixing and CP violation
• CPviolation in bilarge lepton mixing
• Model-independent analysis of tri-bimaximal mixing: A softly-broken hidden or an accidental symmetry?

Cited by

• Tri-bimaximal neutrino mixing and θ13