Lepton masses, mixings, and flavor-changing neutral currents in a minimalS3-invariant extension of the standard model

2007/06/30 by A. Mondragón, A. Mondragon, Myriam Mondragón +3 · 5 citations
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Electron #Higgs boson #Lepton #MAJORANA #Mass matrix #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pontecorvo–Maki–Nakagawa–Sakata matrix #Sterile neutrino #Yukawa potential #hep-ph

paper · pdf · doi:10.1103/physrevd.76.076003

published as Phys.Rev.D76:076003,2007 · One paragraph added with comparison to tri-bimaximal mixing, two lines changed in abstract, references added, typographical errors corrected

arxiv created 2007/08/17 · openalex publication_date 2007/10/03 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

The mass matrices of the charged leptons and neutrinos, previously derived in a minimal S₃-invariant extension of the standard model, were reparametrized in terms of their eigenvalues. We obtained explicit, analytical expressions for all entries in the neutrino mixing matrix, V_PMNS, the neutrino mixing angles, and the Majorana phases as functions of the masses of charged leptons and neutrinos in excellent agreement with the latest experimental values. The resulting V_PMNS matrix is very close to the tribimaximal form of the neutrino mixing matrix. We also derived explicit, analytical expressions for the matrices of the Yukawa couplings and computed the branching ratios of some selected flavor-changing neutral current processes as functions of the masses of the charged leptons and the neutral Higgs bosons. We find that the S₃\ifmmode×\else\texttimes\fiZ₂ flavor symmetry and the strong mass hierarchy of the charged leptons strongly suppress the FCNC processes in the leptonic sector well below the present experimental upper bounds by many orders of magnitude.

Citations

• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
• Flavor changing supersymmetry interactions in a supernova
• The breaking of the flavour permutational symmetry: Mass textures and the CKM matrix
• Higgs potential in a minimalS3invariant extension of the standard model
• The Flavor Symmetry
• Status of global fits to neutrino oscillations
• Massive neutrinos and cosmology
• Probing nonstandard neutrino interactions with supernova neutrinos
• Search for Lepton-Flavor Violation in the Decayτ−→ℓ−ℓ+ℓ−
• Search for Lepton Flavor Violation in the Decayτ±→μ±γ
• Supernova neutrino observations: What can we learn?
• Review of Particle Physics

Cited by

• Higgs and Yukawa Structure in a Clifford Algebra Model with Three Generations and S₃ Family Symmetry
• Flavor changing neutral Higgs bosons in a supersymmetric extension based on aQ6family symmetry
• Neutrino mixing with nonzero θ13 and CP violation in the 3-3-1 model based on S4 flavor symmetry
• Non-minimal flavored S₃⊗ Z₂ S 3 ⊗ Z 2 left–right symmetric model
• Quark mixing in an S3 symmetric model with two Higgs doublets

Related

• The S3 flavour symmetry: Neutrino masses and mixings
• S₃-flavour symmetry as realized in lepton flavour violating processes
• Lepton masses and mixing in a three-Higgs doublet model
• Simple Mass Matrix Ansätze for Neutrino Mixing
• Fermion Masses and Mixings from a Minimum Principle