The Fermion Mass Problem

Details The Fermion Mass Problem The Fermion Mass Problem

1995-04-18

arxiv.org/abs/hep-ph/9504323v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, LaTex with style file embedded. Talk presented at the 7th Adriatic Conference on Particle Physics, Islands of Brijun

Scientific paper

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 $\tan\beta$ scenario and Yukawa unification. Mass matrix ans\"{a}tze 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.

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