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The EDELWEISS experiment has improved its sensitivity for the direct search for WIMP dark matter. In the recoil energy range relevant for WIMP masses below 10 TeV/c 2 , no nuclear recoils were observed in the fiducial volume of a heat-and-ionization cryogenic Ge detector operated in the low-background environment of the Laboratoire Souterrain de Modane in(More)
The EDELWEISS collaboration has performed a direct search for WIMP dark matter using a 320 g heat-and-ionization cryogenic Ge detector operated in a low-background environment in the Laboratoire Souterrain de Modane. No nuclear recoils are observed in the fiducial volume in the 30-200 keV energy range during an effective exposure of 4.53 kg·days. Limits for(More)
The electronic noise of fast preampliiers associated to APDs readout of PbWO 4 crystal has been investigated in a beam test. An electronic noise value of 25 MeV has been achieved whereas the temperature was 27 1 o C. We have also measured the electronic noise of serial connection of two high capacitance Hamamatsu APDs and we have reached a noise of 30 MeV(More)
The EDELWEISS Dark Matter search uses low-temperature Ge detectors with heat and ionisation read-out to identify nuclear recoils induced by elastic collisions with WIMPs from the galactic halo. Results from the operation of 70 g and 320 g Ge detectors in the low-background environment of the Modane Underground Laboratory (LSM) are presented.
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