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arXiv · 2406.09970

The gauge coupling evolutions of an ${\rm SU}(8)$ theory with the maximally symmetry breaking pattern

Ning Chen·Zhanpeng Hou·Ying-nan Mao·Zhaolong Teng
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Abstract

We study the renormalizable group equations (RGEs) of the extended strong and weak gauge couplings in an ${\rm SU}(8)$ theory, where three-generational SM fermions are non-trivially embedded. This framework was previously found to generate the observed SM quark/lepton mass hierarchies and the Cabibbo-Kobayashi-Maskawa mixing pattern through its maximally breaking pattern. The field theoretical two-loop RGEs can not achieve the gauge coupling unification with the minimal setup, unless additional adjoint Higgs fields as well as the gravity-induced $d=5$ term to the ${\rm SU}(8)$ field strength term are included.

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Ning Chen, Zhanpeng Hou, Ying-nan Mao, Zhaolong Teng. 2024-06-14. The gauge coupling evolutions of an ${\rm SU}(8)$ theory with the maximally symmetry breaking pattern. https://doi.org/10.1007/jhep10(2024)149

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