On stability of false vacuum in supersymmetric theories with cosmic strings

TL;DR

This paper investigates how cosmic strings in supersymmetric models can destabilize the intended supersymmetry breaking vacuum, imposing constraints on model parameters and gauge symmetry breaking dynamics.

Contribution

It analyzes the impact of cosmic strings on vacuum stability in supersymmetric theories, highlighting conditions that lead to instability and constraining model parameters.

Findings

Certain coupling ranges cause vacuum instability

Constraints on gauge symmetry breaking dynamics

Limits on model parameters for stable vacua

Abstract

We study the stability of supersymmetry breaking vacuum in the presence of cosmic strings arising in the messenger sector. For certain ranges of the couplings, the desired supersymmetry breaking vacua become unstable against decay into phenomenologically unacceptable vacua. This sets constraints on the range of allowed values of the coupling constants appearing in the models and more generally on the chosen dynamics of gauge symmetry breaking.