Search for WIMPs with EDELWEISS

par Eric Armengaud (IRFU/SPP (CEA Saclay))

jeudi 1 déc. 2011, 14:00 → 16:00 Europe/Paris

LPNHE

The EDELWEISS-II experiment, operated at the Frejus laboratory in a low-background environment, uses cryogenic germanium detectors to look for WIMPs. We present the results of a WIMP search carried out recently with ten so-called InterDigit detectors. This technology enables a high level of gamma radioactivity rejection within a controlled fiducial volume. A cross-section of 4.4×10-8 pb could be excluded for a WIMP mass of 85 GeV. We also present the status of the EDELWEISS-III project, which will operate 40 newly-designed FID detectors in an upgraded installation to improve significantly the sensitivity to low WIMP scattering cross-sections. Finally we will discuss the current situation concerning potential low-mass WIMP signals.

Slides edw_lpnhe_nov2011.pdf