A New Scheme for NMSSM in Gauge Mediation

TL;DR

This paper introduces a novel NMSSM framework in gauge mediation where the singlet is a meson from hidden QCD, enabling correct electroweak symmetry breaking and predicting low-scale SUSY breaking around 100-1000 TeV.

Contribution

It proposes a new NMSSM model where the singlet arises as a meson in hidden QCD, linking SUSY breaking dynamics to EWSB.

Findings

Predicts low-scale SUSY breaking around 100-1000 TeV.

Achieves successful EWSB with the new framework.

Provides a unified dynamical origin for phenomenological ingredients.

Abstract

We propose a new framework for the next-to-minimal supersymmetric standard model (NMSSM) in gauge mediation, where in general the correct electroweak symmetry breaking (EWSB) is difficult to be explained. The difficulty is caused by the absence of a soft supersymmetry (SUSY) breaking mass for the NMSSM singlet S. In our framework, S is a meson in a hidden QCD. This QCD is responsible for the dynamical SUSY breaking, forming S, and the soft SUSY breaking mass for S, which is a key to explain the correct EWSB: all the ingredients for successful phenomenology originate from the common dynamics. From the requirement of the successful EWSB, the low-scale SUSY breaking around 100-1000 TeV is predicted. This is favored to avoid the large fine-tuning.