Proton lifetime in the minimal SO(10) GUT and its implications for the LHC

Abstract

We review the current status of the minimal non-supersymmetric SO(10) grand unified theory and perform a detailed next-to-leading-order analysis of the gauge unification and proton lifetime constraints on the part of its parameter space supporting a ZeV-scale color sextet scalar. This, together with a TeV-scale color octet studied in detail in a preceding work, represents one of the two minimally fine-tuned settings compatible with all the relevant consistency and phenomenology limits. Both these scenarios can be extensively tested at the future megaton-scale proton-decay facilities. On top of that, the light octet solution can be accessible in the TeV-scale collider searches.

20 pages, 7 figures, 2 tables

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Cited by in corpus (6)

• GUT Physics in the era of the LHC
• Vector-Like Quarks and Leptons, SU(5) $\otimes$ SU(5) Grand Unification, and Proton Decay
• Unified dark matter with intermediate symmetry breaking scales
• Quantum nature of the minimal potentially realistic $\mathrm{SO}(10)$ Higgs model
• Flavour anomalies and dark matter assisted unification in $SO(10)$ GUT
• Higher order proton lifetime estimates in grand unified theories