Extending the Symmetries of the Standard Model | Zendy

G.G. Ross | Zendy

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Extending the Symmetries of the Standard Model

Author(s) -

G.G. Ross

Publication year - 1996

Publication title -

progress of theoretical physics supplement

Language(s) - English

Resource type - Journals

ISSN - 0375-9687

DOI - 10.1143/ptps.123.285

Subject(s) - yukawa potential , homogeneous space , theoretical physics , physics , unification , fermion , standard model (mathematical formulation) , mixing (physics) , gauge (firearms) , supersymmetry , particle physics , mathematics , quantum mechanics , geometry , computer science , archaeology , history , programming language

We discuss the possibilities for determining the parameters of the Standard Model by extending its symmetries. Supersymmetry combined with a stage of unification is capable of determining the magnitude of the gauge couplings and explaining the pattern of spontaneous breaking. We consider how further family symmetries may determine the qualitative structure of the fermion masses and mixing angles. Finally we explore the possibility that the dynamics of the low-energy theory may determine the magnitude of the Yukawa couplings via its fixed point structure and hence give a complete theory of the fermion masses

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