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February 2, 2026Open Access

First Sub-MeV Dark Matter Search with the QROCODILE Experiment Using Superconducting Nanowire Single-Photon Detectors

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Authors

LBLaura BaudisABAlexander H. BismarkNBNoah Brugger

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Overview

QROCODILE experiment demonstrates new constraints on sub-MeV dark matter interactions, suggesting enhanced detection capabilities.

Key Points

  • The aim is to explore interactions of sub-MeV dark matter particles using advanced photon detection techniques.
  • Utilized superconducting nanowire single-photon detectors as both target and sensor
  • Achieved sensitivity to energy deposits as low as 0.11 eV
  • Employed thin-layer geometry to achieve directional sensitivity
  • Leveraged phonon and quasiparticle coupling for simultaneous interaction constraints with electrons and nucleons
  • Established new world-leading constraints on dark matter interactions for particles with masses as low as 30 keV
  • Demonstrated anisotropic interaction rates due to experimental configuration
  • Outlined potential for improvements in energy threshold and effective volume in future experiments

Cite This Study

Baudis et al. (2025) studied this question.

synapsesocial.com/papers/6980fd81c1c9540dea80f482https://doi.org/10.5167/uzh-283325
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