Journal
EUROPEAN PHYSICAL JOURNAL C
Volume 74, Issue 12, Pages -Publisher
SPRINGER
DOI: 10.1140/epjc/s10052-014-3184-9
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Funding
- German Federal Ministry of Science and Education (BMBF)
- Munich Cluster of Excellence (Origin and Structure of the Universe)
- Maier-Leibnitz-Laboratorium (Garching)
- Science and Technology Facilities Council (STFC) UK
- Helmholtz Alliance for Astroparticle Physics
- LNGS
- STFC [PP/D00005X/1, ST/K00137X/1] Funding Source: UKRI
- Science and Technology Facilities Council [PP/D00005X/1, ST/K00137X/1] Funding Source: researchfish
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The CRESST-II cryogenic dark matter search aims for the detection of WIMPs via elastic scattering off nuclei in CaWO4 crystals. We present results from a low-threshold analysis of a single upgraded detector module. This module efficiently vetoes low energy backgrounds induced by a-decays on inner surfaces of the detector. With an exposure of 29.35 kg live days collected in 2013 we set a limit on spin-independent WIMP-nucleon scattering which probes a new region of parameter space for WIMP masses below 3 GeV/c(2), previously not covered in direct detection searches. A possible excess over background discussed for the previous CRESST-II phase 1 (from 2009 to 2011) is not confirmed.
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