SMuK 2023 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 118: Dark Matter II
T 118.5: Vortrag
Donnerstag, 23. März 2023, 16:50–17:05, POT/0006
A low-threshold diamond cryogenic detector for sub-GeV Dark Matter searches — •Anna Bertolini1, Gode Angloher1, Antonio Bento1,2, Lucia Canonica1, Nahuel Ferreiro Iachellini1, Dominik Fuchs1, Abhijit Garai1, Dieter Hauff1, Athoy Nilima1, Michele Mancuso1, Federica Petricca1, Franz Probst1, Francesca Pucci1, Ahmed Abdelhameed1, Elia Bertoldo1,3, and Johannes Rothe1,4 — 1Max-Planck-Institut für Physik, München, Germany — 2LIBPhys-UC, Departamento de Fisica, Universidade de Coimbra, Coimbra, Portuga — 3Institut de Física d'Altes Energies (IFAE), Barcelona Institute of Science and Technology (BIST), Bellaterra (Barcelona) — 4Physik-Department and Excellence Cluster Universe, Technische Universität München, D-85748 Garching, Germany
Recently the sub-GeV dark matter (DM) mass region has started to be probed. To explore this region, detectors with a low energy threshold are required. Recent developments in the production of diamond crystals allow for high-quality large-mass diamonds that can be used as DM detectors. Thanks to their superior cryogenic properties, diamond detectors can reach an energy threshold in the eV range. In this contribution the realization of the first low-threshold cryogenic detector that uses diamond as absorber for astroparticle physics applications will be reported. Two diamond samples instrumented with a W-TES have been tested, showing transitions at about 25 mK. The performance of the diamond detectors will be presented highlighting the best performing one, reaching an energy threshold of 16.8 eV.