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Missing Doublet Multiplet as the Origin of the Doublet-Triplet Splitting in SUSY SU(6)

I. Gogoladze·A. Kobakhidze·Z. Tavartkiladze
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Abstract

In a $SU(6)$ gauge theory we found the irreducible representation (175-plet) which does not contain the Higgs doublet. Using this representation we construct two SUSY $SU(6)$ models in which the doublet-triplet splitting occurs naturally, without fine tuning. The crucial role is played by the ``custodial" global $SU(2)_H$ in combination with discrete or continuous $R$ symmetries.

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I. Gogoladze, A. Kobakhidze, Z. Tavartkiladze. 1995-12-26. Missing Doublet Multiplet as the Origin of the Doublet-Triplet Splitting in SUSY SU(6). https://doi.org/10.1016/0370-2693(96)00071-8

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