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HK: Fachverband Physik der Hadronen und Kerne

HK 57: Astroparticle Physics 3

HK 57.2: Gruppenbericht

Donnerstag, 26. März 2015, 17:30–18:00, K/HS1

Status and first data of the EDELWEISS-III experiment — •Silvia Scorza for the EDELWEISS collaboration — Karlsruher Institut für Technologie, Institut für Experimentelle Kernphysik, Postfach 3640, Karlsruhe

The EDELWEISS-III collaboration is operating an experiment for the direct detection of Weakly Interacting Massive Particle (WIMPs) dark matter in the low radioactivity environment of the Modane Underground Laboratory. It consists of 36 advanced FID germanium detectors operating at 18 mK in a dilution refrigerator in order to identify eventual rare nuclear recoils induced by elastic scattering of WIMPs from our Galactic halo. I will discuss the current EDELWEISS-III program, including improvements of the background, data-acquisition and the current installation. FID detector performances and a first analysis of data acquired in a long-term campaign will be presented. The FID detector technology is not limited to EDELWEISS-III but can be further employed in the next generation of cryogenic detector experiments.