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

223 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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