Limits on cold dark matter candidates from an ultralow background germanium spectrometer

  • S. P. Ahlen
  • , F. T. Avignone
  • , R. L. Brodzinski
  • , A. K. Drukier
  • , G. Gelmini
  • , D. N. Spergel

Research output: Contribution to journalArticlepeer-review

247 Scopus citations

Abstract

An ultralow background spectrometer is used as a detector of cold dark matter candidates from the halo of our galaxy. Using a realistic model for the galactic halo, large regions of the mass-cross section space are excluded for important halo component particles. In particular, a halo dominated by heavy standard Dirac neutrinos (taken as an example of particles with spin-independent Z0 exchange interactions) with masses between 20 GeV and 1 TeV is excluded. The local density of heavy standard Dirac neutrinos is <0.4 GeV/cm3 for masses between 17.5 GeV and 2.5 TeV, at the 68% confidence level.

Original languageEnglish (US)
Pages (from-to)603-608
Number of pages6
JournalPhysics Letters B
Volume195
Issue number4
DOIs
StatePublished - Sep 17 1987

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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