TY  - EJOUR
AU  - Schwemmbauer, Christina
AU  - Hadas, Guy Daniel
AU  - Hochberg, Yonit
AU  - Isleif, Katharina-Sophie
AU  - Januschek, Friederike
AU  - Lehmann, Benjamin V.
AU  - Lindner, Axel
AU  - Lita, Adriana E.
AU  - Meyer, Manuel
AU  - Othman, Gulden
AU  - Rivasto, Elmeri
AU  - Rubiera Gimeno, José Alejandro
TI  - First direct search for light dark matter interactions in a transition-edge sensor
IS  - DESY-25-086
M1  - PUBDB-2025-01928
M1  - DESY-25-086
M1  - arXiv:2506.18982
M1  - MIT-CTP/5879
PY  - 2025
N1  - 10 pages, 6 figures
AB  - 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.
LB  - PUB:(DE-HGF)25
DO  - DOI:10.3204/PUBDB-2025-01928
UR  - https://bib-pubdb1.desy.de/record/631137
ER  -