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arXiv · 1812.10548

A minimal non-supersymmetric SO(10) model with Peccei--Quinn symmetry

Sofiane M. Boucenna·Tommy Ohlsson·Marcus Pernow
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Abstract

We present a minimal non-supersymmetric SO(10) GUT breaking directly to the Standard Model gauge group. Precise gauge coupling unification is achieved due to the presence of two color-octet scalars, one of which is accessible to LHC searches. Proton lifetime is predicted to be below $4.5\times 10^{34}$ years, which is within the projected five-year sensitivity of the proposed Hyper-Kamiokande experiment. We find that the Standard Model observables are reproduced to a reasonable accuracy in a numerical fit, which also predicts the unknown neutrino parameters. Finally, the two scalar representations stabilize the electroweak vacuum and the dark matter is comprised of axions.

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Sofiane M. Boucenna, Tommy Ohlsson, Marcus Pernow. 2018-12-26. A minimal non-supersymmetric SO(10) model with Peccei--Quinn symmetry. https://doi.org/10.1016/j.physletb.2019.03.045

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