1995/04/18 by C.D. Froggatt, C. D. Froggatt, Froggatt, C. D.
Physics and Astronomy · #Nuclear physics research studies #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9504323
15 pages, LaTex with style file embedded. Talk presented at the 7th Adriatic Conference on Particle Physics, Islands of Brijuni, 13-20 Sep 1994
arxiv created 1995/04/18 · arxiv updated 2009/11/30
Different approaches to the quark-lepton mass problem are reviewed. The infrared quasifixed point predictions for the top quark mass are discussed for the Standard Model and its minimal supersymmetric extension, with particular reference to the large tanβ scenario and Yukawa unification. Mass matrix ansätze with texture zeros at the unification scale are also considered. It is argued that the hierarchy of fermion masses and mixing angles requires the existence of an approximately conserved chiral flavour symmetry beyond the Standard Model.