17-22 July 2016
Master Cutlers Hall
Europe/London timezone

New results on low mass WIMPs search with the EDELWEISS-III experiment.

20 Jul 2016, 09:30
30m
Venue: Cutlers' Main Hall (First Floor); Chair: Leszek Roszkowski; Session Managers: David Woodward & Anthony Ezeribe ()

Venue: Cutlers' Main Hall (First Floor); Chair: Leszek Roszkowski; Session Managers: David Woodward & Anthony Ezeribe

Speaker

Mrs. Véronique SANGLARD (Institut de Physique Nucléaire de Lyon)

Description

The EDELWEISS-III experiment, located in the low background environment, the Frejus laboratory, used an array of twenty-four 800g detectors to search directly the Dark Matter under the form of WIMPs. Data have been taken during 8 month with these heat-and-ionization cryogenic detectors fully covered with interleaved electrodes to improve the near surface events rejection. We present the limits on the spin-independent WIMP-nucleon cross-section for WIMP mass below 30 GeV from a fiducial exposure of 582 kg.d. The results represent a factor 10 to 40 improvement relative to EDELWEISS-II, due in part to the experimental resolutions that made possible a reduction of the analysis threshold down to 2.5 keV. We also present the current developments aimed at making the experiment to be more sensitive to WIMP mass in the range 1 to 15 GeV with the use of Luke-Neganov amplification.

Primary author

Mrs. Véronique SANGLARD (Institut de Physique Nucléaire de Lyon)

Presentation Materials

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