(S)quark masses and non-Abelian horizontal symmetries

1993/08/30 by Philippe Pouliot, Nathan Seiberg · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/0370-2693(93)91801-s

published as Phys.Lett.B318:169-173,1993 · 9 pages, RU-93-39

arxiv created 1993/08/30 · openalex publication_date 1993/11/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present a model of quark and squark masses which is based on a non-Abelian horizontal symmetry. It leads to order of magnitude relations between quark mass ratios and mixing angles and to the successful exact relation sin θ_C=√ m_d\over m_s to better than 20% accuracy. The non-Abelian symmetry also ensures the necessary squark degeneracy to suppress FCNC mediated by loops with squarks and gluinos, in the neutral meson systems.

Citations

• Flavor-changing interactions mediated by scalars at the weak scale
• Should squarks be degenerate?
• A new lepton-quark mass relation in a unified theory

Cited by

• Democratic (s)fermions and lepton flavor violation