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arXiv · 1110.5413

SU(5) Compatible Yukawaon Model With Two Family Symmetries U(3)$\times$O(3)

Yoshio Koide
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Abstract

A yukawaon model which is compatible with an SU(5) GUT model is investigated. In a previous SU(5) compatible yukawaon model with a U(3) family gauge symmetry, we could not build a model with a lower energy scale of the family gauge symmetry breaking scale $Λ_{fam}$ than $10^{13}$ GeV, so the family gauge boson effects in the previous model were invisible. In the present model, we consider two family symmetries U(3)$\times$O(3), and we assume that the conventional quarks and leptons $(\bar{\bf 5}+{\bf 10}+{\bf 1})$ of SU(5) are described as $(\bar{\bf 5}_i+{\bf 10}_α+{\bf 1}_α)$ ($ i=1,2,3$ and $α=1,2,3$ are indices of U(3) and O(3), respectively). As a result, we build a model with $Λ_{O3} \sim 10^{16}$ GeV and $Λ_{U3} \sim 10^{3}$ GeV. The lightest U(3) family gauge boson $A_1^1$ will be observed with a mass of the order of 1 TeV.

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Yoshio Koide. 2011-10-25. SU(5) Compatible Yukawaon Model With Two Family Symmetries U(3)$\times$O(3). https://arxiv.org/abs/1110.5413

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