Physical Implications of a Vector-like Extension of the Standard Model

Kazuo Fujikawa

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arXiv · hep-ph/9604358

Physical Implications of a Vector-like Extension of the Standard Model

Kazuo Fujikawa

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Abstract

Physical implications of a vector-like extension of the standard model for heavier quarks and leptons with $SU(2)\times U(1)$ gauge symmetry and only one Higgs doublet are discussed. This scheme incorporates infinitely many fermions, and the chiral structure is realized by a non-vanishing analytic index of mass matrices. The model is perturbatively well controllable, and the physical Higgs particle generally mediates leptonic as well as quark flavor-changing processes at a rate below the present experimental limit. This model illustrates a general feature of models where some of the fermion masses are of non-Higgs origin.

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Kazuo Fujikawa. 1996-05-01. Physical Implications of a Vector-like Extension of the Standard Model. https://arxiv.org/abs/hep-ph/9604358

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