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

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

Title: A minimal non-supersymmetric SO(10) model with Peccei–Quinn symmetry
Author: Boucenna, Sofiane M.
Ohlsson, Tommy   orcid.org/0000-0002-3525-8349
Pernow, Marcus
Date: 2019-05
Language: English
Scope: 251-257
University/Institute: Háskóli Íslands
University of Iceland
School: Verkfræði- og náttúruvísindasvið (HÍ)
School of Engineering and Natural Sciences (UI)
Department: Science Institute (UI)
Raunvísindastofnun (HÍ)
Series: Physics Letters B;792
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2019.03.045
Subject: Nuclear and High Energy Physics; Non-supersymmetric; SO(10) GUT; Kjarneðlisfræði
URI: https://hdl.handle.net/20.500.11815/1743

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Boucenna, Sofiane M, Tommy Ohlsson, and Marcus Pernow. "A Minimal Non-supersymmetric SO(10) Model with Peccei–Quinn Symmetry." Physics Letters B 792 (2019): 251-57.


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 × 1034 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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This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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