2005/01/10 by Piotr H. Chankowski, P. H. Chankowski, K. Kowalska +5
Mathematics · Physics and Astronomy · #Charge (physics) #Dark Matter and Cosmic Phenomena #Fermion #Gauge (firearms) #Geometry #Mathematics #Mixing (physics) #Neutrino #Neutrino Physics Research #Order (exchange) #Oscillation (cell signaling) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Standard Model (mathematical formulation) #Symmetry (geometry) #Theoretical physics #Yukawa potential #hep-ph
paper · pdf · doi:10.1103/physrevd.71.055004
published as Phys.Rev.D71:055004,2005 · 23 pages, 8 figures
arxiv created 2005/01/10 · openalex publication_date 2005/03/15 · arxiv updated 2014/11/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We reconsider models of fermion masses and mixings based on a gauge anomalous horizontal U(1) symmetry. In the simplest model with a single flavon field and horizontal charges of the same sign for all standard model fields, only very few charge assignements are allowed when all experimental data, including neutrino oscillation data, is taken into account. We show that a precise description of the observed fermion masses and mixing angles can easily be obtained by generating sets of the order one parameters left unconstrained by the U(1) symmetry. The corresponding Yukawa matrices show several interesting features which may be important for flavor changing neutral currents and CP violation effects in supersymmetric models.