Status of the EDELWEISS-II experiment

Véronique Sanglard (1)

1 IPNL - Institut de Physique Nucléaire de Lyon

EDELWEISS is a direct dark matter search experiment situated in the low radioactivity environment of the Modane Underground Laboratory. The experiment uses Ge detectors at very low temperature in order to identify eventual rare nuclear recoils induced by elastic scattering of WIMPs from our Galactic halo. We present results of the commissioning of the second phase of the experiment, involving more than 7 kg of Ge, that has been completed in 2007. We describe two new types of detectors with active rejection of events due to surface contamination. This active rejection is required in order to achieve the physics goals of 10-8 pb cross-section measurement for the current phase.

Mots clés: dark matter; cryogenic detectors; WIMPs; neutralino; supersymmetry

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]; Astrophysique [astro-ph]

Véronique Sanglard. Status of the EDELWEISS-II experiment. Dark Energy and Dark Matter: Observations, Experiments and Theories, Jul 2008, Lyon, France. pp.237-242, ⟨10.1051/eas/0936033⟩. ⟨hal-00353101⟩