Dimensional reduction of a $10D, N=1 E_{(8)}$ over a modified flag manifold to Split NMSSM

Patellis, Gregory; Porod, Werner Rudolf; Zoupanos, George

doi:10.22323/1.463.0120

Abstract

We examine the Standard Model extension that emerges from the dimensional reduction of a

$10D$ ,

$\mathcal{N}=1$ ,

$E_8$ gauge theory over the

$M_4 \times SU(3)/U(1) \times U(1) \times \mathbf{Z}_3$ space, resulting in a

$4D$ ,

$\mathcal{N}=1$ ,

$SU(3)^3 \times U(1)^2$ theory.
Below the unification scale, a Split NMSSM effective theory is obtained.
At the 2-loop level, the masses of the third-generation quark and light Higgs are consistent with experimental limits, and the neutralino LSP mass is predicted to be

$<800$ ~GeV.