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

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 \(U(1)'\) Supersymmetric Standard Model (USSM) of E\(_6\) or...

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Bibliographic Details
Published in:arXiv.org 2020-08
Main Authors: Yaşar Hiçyılmaz, Moretti, Stefano
Format: Article
Language:English
Subjects:
Dark matter
Experiments
Germanium
Higgs bosons
Xenon
Online Access:Get full text
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Summary: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 \(U(1)'\) Supersymmetric Standard Model (USSM) of E\(_6\) 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 \(\chi^2\) 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.
ISSN:2331-8422
DOI:10.48550/arxiv.2008.06778