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Model with Gauge Coupling Unification on $S^1/(Z_2 \times Z_2')$ Orbifold

N. Haba·T. Kondo·Y. Shimizu·Tomoharu Suzuki·Kazumasa Ukai
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Abstract

We suggest a simple grand unified theory where the fifth dimensional coordinate is compactified on an $S^1/(Z_2 \times Z_2')$ orbifold. This model contains additional ${\bf 10 + \overline{10}}$, (${\bf 15 + \overline{15}}$) and two ${\bf 24}$ Higgs multiplets in the non-supersymmetric SU(5) grand unified theory. Although this model is non-supersymmetric theory, the gauge coupling unification is realized due to the mass splittings of Higgs multiplets by $S^1/(Z_2 \times Z_2')$ orbifolding. The constraints from the $b \to s γ$, $μ\to e γ$, and electron and muon anomalous magnetic moments are also discussed.

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N. Haba, T. Kondo, Y. Shimizu, Tomoharu Suzuki, Kazumasa Ukai. 2001-08-20. Model with Gauge Coupling Unification on $S^1/(Z_2 \times Z_2')$ Orbifold. https://doi.org/10.1143/ptp.106.1247

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