Aachen 2019 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 54: Direkte Suche nach Dunkler Materie III

T 54.3: Vortrag

Mittwoch, 27. März 2019, 16:40–16:55, H09

DELight: A new detection concept to search for light Dark Matter — •Klaus Eitel1, Arnulf Barth2, Christian Enss2, Andreas Fleischmann2, Loredana Gastaldo2, Sebastian Kempf2, Bernhard Siebenborn1, and Marc Weber31Karlsruher Institut für Technologie, Institut für Kernphysik — 2Kirchhoff-Institut für Physik, Universität Heidelberg — 3Karlsruher Institut für Technologie, Institut für Prozessdatenverarbeitung und Elektronik

Recently, there has been increased interest in investigating Dark Matter particle candidates in the MeV mass range. Such light DM particles could be detected via DM-electron scattering with energy transfers in the eV range. An excellent target material is Ge with an efficient band gap of only 3eV. Amplifying the phonon signal in a mK-cold Ge crystal via the Neganov-Luke effect and reading out this signal via a metallic magnetic calorimeter (MMC) has the potential to detect single electron-hole pairs and thus test a yet unexplored parameter range for DM.

We present the physical motivation, the general detection scheme and first R&D tests performed in the last months.

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