# Spontaneous Charge Breaking in the NMSSM - Dangerous or not?

## TL;DR

This paper examines how charge-breaking minima affect the vacuum stability of the NMSSM, revealing that such minima are more prevalent than in MSSM and influence the metastability of certain parameter regions.

## Contribution

It demonstrates that the NMSSM possesses global charge-breaking minima at both tree and loop levels, contrasting with MSSM, and assesses their impact on vacuum metastability.

## Key findings

- Presence of global charge-breaking minima in NMSSM
- Charge-breaking minima influence metastability regions
- Minimal impact on metastable vacuum configurations

## Abstract

We investigate the impact of charge-breaking minima on the vacuum stability of the NMSSM. We find that, in contrast to Two-Higgs-Doublet Models like the MSSM, at both tree- and loop-level there exists global charge-breaking minima. Consequently, many regions of parameter space are rendered metastable, which otherwise would have been considered stable if these charge-breaking minima were neglected. However, the inclusion of these new scalar field directions has little impact on otherwise metastable vacuum configurations.