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

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

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phlb..195..603a&link_type=abstract

Physics Letters B, Volume 195, Issue 4, p. 603-608.

Physics

175

Scientific paper

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.

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