False Vacuum in the Supersymmetric Mass Varying Neutrinos Model

TL;DR

This paper analyzes the vacuum structure of a supersymmetric Mass Varying Neutrinos model, linking dark energy to a false vacuum and exploring implications for particle decay processes.

Contribution

It provides a detailed analysis of the vacuum structure and connects dark energy to false vacuum energy within a supersymmetric framework.

Findings

Dark energy scale explained by gravitationally suppressed SUSY breaking

Tiny sneutrino vacuum expectation values are required

Decay processes involving superparticles, acceleron, and sterile neutrinos are discussed

Abstract

We present detailed analyses of the vacuum structure of the scalar potential in a supersymmetric Mass Varying Neutrinos model. The observed dark energy density is identified with false vacuum energy and the dark energy scale of order $(10^{-3}eV)^4$ is understood by gravitationally suppressed supersymmetry breaking scale, $F({TeV})^2/M_{Pl}$, in the model. The vacuum expectation values of sneutrinos should be tiny in order that the model works. Some decay processes of superparticles into acceleron and sterile neutrino are also discussed in the model.