R. Strauss - New results from the CRESST Experiment
by
Raimund Strauss(Max-Planck-Institut für Physik)
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Europe/Rome
Pontecorvo room (LNGS)
Pontecorvo room
LNGS
Description
The CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) Experiment, located at LNGS, aims at the direct detection of WIMPs. In summer 2013 a new Dark Matter run has been started with a total target mass of ~5kg. With respect to previous measuring campaigns the intrinsic radiopurity of CaWO4 crystals and the capability to reject recoil events from alpha surface contamination has been significantly improved. We analysed the first ~80 live-days of data acquired by a single 250g CaWO4 detector which combines an unprecedented background level with a low trigger threshold of ~600eV. In this talk, we present a new detector design and the results of a low-threshold analysis which set stringent limits for the spin-independent WIMP-nucleon cross section, in particular for low-mass WIMPs.
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Raimund Strauss
Max-Planck-Institut für Physik
