Bochum 2009 – wissenschaftliches Programm

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HK: Fachverband Hadronen und Kerne

HK 17: Astroparticle Physics

HK 17.5: Vortrag

Montag, 16. März 2009, 18:00–18:15, H-ZO 70

Status and results from the EDELWEISS-2 Dark Matter Search — •Valentin Kozlov — Forschungszentrum Karlsruhe, Institut für Kernphysik

EDELWEISS uses cryogenic Germanium bolometers to search for Dark Matter in form of weakly interacting massive particles, WIMPs. The experiment is situated in the French-Italian Fréjus tunnel, in the Modane underground laboratory LSM with a shielding of 4800 m.w.e against cosmic rays. Since the end of 2007, EDELWEISS is taking data, with a successive increase of target mass and further developments of detector technology.

We will present the status and the latest results of the current data taking with emphasis on the performance of new detectors. These detectors show a significantly improved β/γ-rejection and provide a promising base for a dark matter experiment of the next generation. In addition, the identification of muon-induced background events and special measurements of muon-induced neutrons will be discussed.

This work is supported in part by the German Research Foundation (DFG) through its collaborative research center SFB-TR27 ("Neutrinos and Beyond").