Wuppertal 2015 – scientific programme

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T: Fachverband Teilchenphysik

T 31: Dunkle Materie II

T 31.2: Group Report

Monday, March 9, 2015, 17:05–17:25, K.11.24 (HS 33)

CRESST-II Phase 2 - First results and outlook — •Christian Strandhagen for the CRESST collaboration — Eberhard-Karls-Universität Tübingen, D-72076 Tübingen, Germany

The CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) experiment, located in the Gran Sasso underground laboratory (LNGS) in Italy, aims at the direct detection of Dark Matter in the form of weakly interacting massive particles (WIMPs). The simultaneous measurement of phonons and scintillation light produced in cryogenic detectors consisting of CaWO₄ crystals is used to discriminate radioactive backgrounds from a possible WIMP signal. First results from the ongoing measurement campaign using a single upgraded detector module with a low threshold of ≈ 600 eV are presented. We discuss the prospects of the full dataset with a planned exposure of about 500 kg days. Finally the plans for a future upgrade will be outlined.