NMSSM with a singlino LSP: possible challenges for searches for supersymmetry at the LHC

TL;DR

This paper explores how a light singlino in the NMSSM affects LHC supersymmetry searches, proposing alternative strategies that do not depend on missing transverse energy due to altered decay signatures.

Contribution

It introduces search strategies for NMSSM scenarios with a singlino LSP that challenge traditional missing energy-based detection methods at the LHC.

Findings

Light singlino reduces missing transverse energy signatures.

Light NMSSM-specific Higgs bosons can be produced.

Proposed strategies are viable at 14 TeV LHC.

Abstract

A light singlino in the NMSSM can reduce considerably the missing transverse energy at the end of sparticle decay cascades; instead, light NMSSM-specific Higgs bosons can be produced. Such scenarios can be consistent with present constraints from the LHC with all sparticle masses below ~1 TeV. We discuss search strategies, which do not rely on missing transverse energy, for such scenarios at the next run of the LHC near 14 TeV.