# Perspectives of direct Detection of supersymmetric Dark Matter in the NMSSM

## TL;DR

This paper investigates the potential for direct detection of supersymmetric dark matter within the NMSSM, highlighting limitations in current search strategies due to low cross sections of certain particle candidates.

## Contribution

It introduces a new scanning technique to analyze the NMSSM parameter space, revealing unexplored regions even with combined SI and SD search approaches.

## Key findings

- Significant parts of NMSSM parameter space remain inaccessible to current detection methods.
- Singlino-dominated LSPs have cross sections below neutrino background, limiting detectability.
- Combined SI and SD searches do not cover all possible scenarios in NMSSM.

## Abstract

In the Next-to-Minimal-Supersymmetric-Standard-Model (NMSSM) the lightest supersymmetric particle (LSP) is a candidate for the dark matter (DM) in the universe. It is a mixture from the various gauginos and Higgsinos and can be bino-, Higgsino- or singlino-dominated. Singlino-dominated LSPs can have very low cross sections below the neutrino background from coherent neutrino scattering which is limiting the sensitivity of future direct DM search experiments. However, previous studies suggested that the combination of both, the spin-dependent (SD) and spin-independent (SI) searches are sensitive in complementary regions of parameter space, so considering both searches will allow to explore practically the whole parameter space of the NMSSM. In this letter, the different scenarios are investigated with a new scanning technique, which reveals that significant regions of the NMSSM parameter space cannot be explored, even if one considers both, SI and SD, searches.