Searching for dark matter with the enriched detectors of the Heidelberg - Moscow Double Beta Decay Experiment

Jul, 1993
11 pages
Published in:
  • Phys.Lett.B 336 (1994) 141-146
Report number:
  • FPRINT-93-97

Citations per year

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Abstract: (Elsevier)
For the first time a search for dark matter with isotopically enriched material is done, by using the Ge detectors of the Heidelberg-Moscow experiment. A measuring time of 165.6 kg·d is used to set limits on the spin-independent cross section of weakly interacting massive particles (WIMPs). A background level of 0.102±0.005 events/(kg·d·keV) was achieved (average value between 11 keV and 30 keV). It was possible to extend the exclusion range for Dirac neutrino masses up to 4.7 TeV.
  • dark matter
  • postulated particle: WIMP
  • neutrino: mass
  • mass: neutrino
  • coherent interaction: WIMP nucleus
  • WIMP nucleus: coherent interaction
  • cross section
  • energy: recoil
  • semiconductor detector: germanium
  • Gran Sasso