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arXiv · hep-ph/9907438

Mixing of Charge -1/3 Quarks and Charged Leptons With Exotic Fermions in E$_{\rm 6}$

Jonathan L. Rosner
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Abstract

A way is suggested to understand why the average masses of $(d,s,b)$ quarks are smaller than those of $(u,c,t)$ quarks. In contrast to previously proposed mechanisms relying on different Higgs boson vacuum expectation values or different Yukawa couplings, the mass difference is explained as a consequence of mixing of $(d,s,b)$ with exotic quarks implied by the electroweak-strong unification group E$_{\rm 6}$.

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Jonathan L. Rosner. 1999-07-24. Mixing of Charge -1/3 Quarks and Charged Leptons With Exotic Fermions in E$_{\rm 6}$. https://arxiv.org/abs/hep-ph/9907438

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