English

Characterisation of Dark Matter in Direct Detection Experiments: Singlino Versus Higgsino

High Energy Physics - Phenomenology 2021-05-19 v1

Abstract

We show how the material used in direct detection experiments of Dark Matter (DM), in the presence of a signal of it, can afford one with the possibility of extracting the nature of the underlying candidate. We do so for the case of a U(1)U(1)' Supersymmetric Standard Model (USSM) of E6_6 origin, by exploiting benchmark points over its parameter space that yield either a Singlino- or Higgsino-like neutralino as DM candidate, the latter being defined in presence of up-to-date constraints, from low to high energy and from collider to non-collider experiments. However, as our method is general, we also introduce a model-independent description of our analysis, for the purpose of aiding similar studies in other Beyond the Standard Model (BSM) scenarios. This has been made possible by adapting a rather simple χ2\chi^2 analysis normally used for signal extraction in direct detection experiments and the procedure has been applied to Xenon, Germanium and Silicon detectors, those showing maximal and complementary sensitivity to gauge- and Higgs-portal induced interactions of DM with their nuclei.

Keywords

Cite

@article{arxiv.2008.06778,
  title  = {Characterisation of Dark Matter in Direct Detection Experiments: Singlino Versus Higgsino},
  author = {Yaşar Hiçyılmaz and Stefano Moretti},
  journal= {arXiv preprint arXiv:2008.06778},
  year   = {2021}
}