Sub-MeV Dark Matter Searches with EDELWEISS: results and prospects
January 12, 2022
May 12, 2022
The Edelweiss collaboration performs light Dark Matter (DM) particles searches with germanium bolometers collecting
charge and phonon signals. Thanks to the Neganov-Trofimov-Luke effect, a RMS resolution of 0.56 electron-hole pair
was obtained on a massive (33.4g) germanium detector operated underground at the Laboratoire Souterrain de Modane.
This sensitiviy made possible a search for Dark Photons Down to 1 eV and for DM-electron interactions below 1 MeV/c$^2$.
It is the first measurement in cryogenic germanium at such low threshold proving the high relevance of this technology.
This is an important step of the development of the Ge detectors with improved performance in the context of the EDELWEISS-SubGeV program.
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