Extended MSSM in Supersymmetric $\rm{SO}(10)$ Grand Unification

TL;DR

This paper investigates TeV-scale relics in supersymmetric SO(10) grand unification, identifying specific extra matter multiplets that can appear at accessible energies based on renormalization and theoretical constraints.

Contribution

It demonstrates that only the extra matter 16 supermultiplet of SO(10) can appear at TeV scale in certain symmetry breaking patterns, considering rational theoretical constraints.

Findings

Extra matter 16 supermultiplet can appear at TeV scale

Only specific symmetry breaking patterns allow TeV-scale relics

Renormalization constrains possible TeV-scale matter content

Abstract

We apply the perturbative grand unification due to renormalization to distinguish TeV-scale relics of supersymmetric $\rm{SO}(10)$ scenarios. With rational theoretical constraints taken into account, we find that for the breaking pattern of either $\rm{SU}(5)$ or Pati-Salam only extra matter $\mathbf{16}$ supermultiplet of $SO(10)$ can appear at TeV scale, apart from MSSM spectrum.