2011/03/31 by Fei Wang, Yuxiao Li
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Mathematics #Mechanism (biology) #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Universality (dynamical systems) #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-011-1803-2
published as Eur.Phys.J. C71 (2011) 1803 · 4 pages, no figures
arxiv created 2011/03/31 · openalex publication_date 2011/11/01 · arxiv updated 2012/08/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In this paper, we propose a Generalized Froggatt-Nielsen mechanism in which non-renormalizable operators involving a GUT group and U(1)H non-singlet Higgs field are introduced. Thus the GUT gauge symmetry breaking and the generation of hierarchical flavor hierarchy have a common origin in this mechanism. In this Generalized Froggatt-Nielsen mechanism, we propose universality conditions for coefficients corresponding to different contractions in the group productions. We find that the predictions in Generalized Froggatt-Nielsen mechanism for SU(5) GUT is different to that of ordinary Froggatt-Nielsen mechanism. Such Generalized Froggatt-Nielsen mechanism can be used in GUT models when ordinary Froggatt-Nielsen mechanism is no longer available. We study the application of Generalized Froggatt-Nielsen mechanism in SO(10) model. We find that realistic standard model mass hierarchy and mixings can be obtained both in SU(5) and SO(10) GUT models with such Generalized Froggatt-Nielsen mechanism.