Novel Extension of MSSM and ``TeV Scale'' Coupling Unification

TL;DR

This paper proposes a new extension to the MSSM that predicts new particles at the TeV scale, achieving precise gauge coupling unification and offering potential collider detection opportunities.

Contribution

It introduces a novel MSSM extension with unique neutral states and demonstrates TeV-scale gauge unification with potential experimental signatures.

Findings

Gauge coupling unification is as precise as MSSM at one loop.

New neutral states could be detected in current or near-future colliders.

Unification occurs around the TeV energy scale.

Abstract

Motivated by the coupling unification problem, we propose a novel extension of the Minimal Supersymmetric Standard Model. One of the predictions of this extension is existence of new states neutral under SU(3)_c X SU(2)_w but charged under U(1)_Y. The mass scale for these new states can be around the mass scale of the electroweak Higgs doublets. This suggests a possibility of their detection in the present or near future collider experiments. Unification of gauge couplings in this extension is as precise (at one loop) as in the MSSM, and can occur in the TeV range.