A minimal non-supersymmetric SO(10) model with Peccei--Quinn symmetry
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 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.
Keywords
Cite
@article{arxiv.1812.10548,
title = {A minimal non-supersymmetric SO(10) model with Peccei--Quinn symmetry},
author = {Sofiane M. Boucenna and Tommy Ohlsson and Marcus Pernow},
journal= {arXiv preprint arXiv:1812.10548},
year = {2019}
}
Comments
7 pages, 3 figures. Final version published in Phys. Lett. B. Corrected units in Eq. (13)