2007/06/11 by S. M. Barr · 2 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.76.105024
published as Phys.Rev.D76:105024,2007 · 14 pages
arxiv created 2007/06/11 · openalex publication_date 2007/11/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In nonsupersymmetric grand unified models a ``radiative fermion mass hierarchy'' can be achieved in which the spectrum of quark and lepton masses is determined entirely by physics at the unification scale, with many relations following from the unified gauge symmetry, and with the masses of the lightest family arising from loops. A simple, realistic, and predictive model of this kind is presented. A ``doubly lopsided'' structure, known to lead to bilarge neutrino mixing, plays a crucial role in the radiative hierarchy.