THE ASTROPARTICLE PHYSICS CONFERENCE

Abstract: The EDELWEISS experiment uses an array of cryogenic Ge bolometers to detect signals from scattering of Weakly Interacting Massive Particles (WIMPs) off Ge nuclei. Heat and ionization signals for each individual event are read out via NTD-thermistors and interleaved Al-ring electrodes, respectively. With this technique, an excellent active suppression of radiogenic background is achieved. In addition to a standard WIMP search, recent results of a search for low mass WIMPs in the region between 5 GeV and 30 GeV, exclude the DAMA and CRESST signal regions at 90 % C.L., as well as parts of the CoGeNT allowed region. In 2013, the 3rd phase of the experiment has started with upgraded cryogenic infrastructure, additional internal shielding and an enlarged detector array of 800-g bolometers. A sensitivity improvement beyond the actual best upper limits is anticipated after a six-month cryogenic run. The paper reviews the current EDELWEISS results and gives an outlook on the expected sensitivity of EDELWEISS-III