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@ARTICLE{Schwemmbauer:631137,
      author       = {Schwemmbauer, Christina and Hadas, Guy Daniel and Hochberg,
                      Yonit and Isleif, Katharina-Sophie and Januschek, Friederike
                      and Lehmann, Benjamin V. and Lindner, Axel and Lita, Adriana
                      E. and Meyer, Manuel and Othman, Gulden and Rivasto, Elmeri
                      and Rubiera Gimeno, José Alejandro},
      title        = {{F}irst direct search for light dark matter interactions in
                      a transition-edge sensor},
      reportid     = {PUBDB-2025-01928, DESY-25-086. arXiv:2506.18982.
                      MIT-CTP/5879},
      year         = {2025},
      note         = {10 pages, 6 figures},
      abstract     = {We propose the use of transition-edge sensor (TES)
                      single-photon detectors as a simultaneous target and sensor
                      for direct dark matter searches, and report results from the
                      first search of this kind. We perform a 489 h science run
                      with a TES device optimized for the detection of 1064 nm
                      photons, with a mass of ~0.2 ng and an energy threshold of
                      ~0.3 eV, and set new limits on dark matter interactions with
                      both electrons and nucleons for dark matter with mass below
                      the MeV scale. With their excellent energy resolution, TESs
                      enable search strategies that are complementary to recent
                      results from superconducting nanowire single-photon
                      detectors and kinetic inductance detectors. We show that
                      next-generation TES arrays hold promise to probe new regions
                      of light dark matter parameter space.},
      cin          = {ALPS},
      cid          = {I:(DE-H253)ALPS-20130318},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) / DFG
                      project G:(GEPRIS)390833306 - EXC 2121: Quantum Universe
                      (390833306) / Light-Dark - Light Dark Matter: New Directions
                      for Theory and Detection (101040019)},
      pid          = {G:(DE-HGF)POF4-611 / G:(GEPRIS)390833306 /
                      G:(EU-Grant)101040019},
      experiment   = {EXP:(DE-H253)ALPS-20150101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2506.18982},
      howpublished = {arXiv:2506.18982},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2506.18982;\%\%$},
      doi          = {10.3204/PUBDB-2025-01928},
      url          = {https://bib-pubdb1.desy.de/record/631137},
}