Preliminary results of a WIMP search with EDELWEISS-II cryogenic detectors

Details Preliminary results of a WIMP search with EDELWEISS-II cryogenic detectors Preliminary results of a WIMP search with EDELWEISS-II cryogenic detectors

2010-11-10

arxiv.org/abs/1011.2319v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages, 4 figs. Proceeding conf. IDM2010

Scientific paper

The EDELWEISS-II experiment uses cryogenic heat-and-ionization detectors in order to detect the rare interactions from possible WIMP dark matter particles on Germanium nuclei. Recently, new-generation detectors with an interleaved electrode geometry were developped and validated, enabling an outstanding rejection of gamma-rays and surface interactions. We present here preliminary results of a one-year WIMP search carried out with ten of such detectors in the Laboratoire Souterrain de Modane. A sensitivity to the spin-independent WIMP-nucleon cross-section of 5 \times 10-8 pb was achieved using a 322 kg

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