Phenomenological Aspects of the Next-to-Minimal Supersymmetric Standard Model

TL;DR

This paper reviews the motivations for the NMSSM and explores unconventional Higgs and sparticle signals at the LHC, highlighting unique decay modes and dark matter implications in constrained models.

Contribution

It provides a phenomenological analysis of the NMSSM, focusing on unique decay signatures and dark matter scenarios not extensively covered before.

Findings

Light pseudoscalar leads to Higgs decaying into 4-tau final state

Singlino-like LSP affects sparticle decay chains

Correct dark matter relic density achieved in constrained NMSSM

Abstract

The motivations for the NMSSM are reviewed, and possible unconventional signals for Higgs and sparticle production at the LHC are discussed. In the presence of a light pseudoscalar, the SM-like Higgs scalar can decay dominantly into a 4-tau final state. In the fully constrained NMSSM with mSUGRA-like soft SUSY breaking terms, the correct dark matter relic density is obtained for a singlino-like LSP which modifies considerably all sparticle decay chains.