Laboratory limits on galactic cold dark matter

Interesting limits are set on candidates for cold-dark matter particles in the halo of the Galaxy from their interaction with a very-low-background Ge detector used to search for double-beta decay. Dirac neutrinos constituting all of dark matter are excluded for masses between 12 GeV/c- squared and...

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Bibliographic Details
Published in:Physical review letters 1988-08, Vol.61 (5), p.510-513
Main Authors: CALDWELL, D. O, EISBERG, R. M, GRUMM, D. M, WITHERELL, M. S, SADOULET, B, GOULDING, F. S, SMITH, A. R
Format: Article
Language:English
Subjects:
Astronomy
Cosmology
Earth, ocean, space
Exact sciences and technology
Observational cosmology (including hubble constant, distance scale, cosmological constant, early universe, etc.)
Stellar systems. Galactic and extragalactic objects and systems. The universe
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Summary:Interesting limits are set on candidates for cold-dark matter particles in the halo of the Galaxy from their interaction with a very-low-background Ge detector used to search for double-beta decay. Dirac neutrinos constituting all of dark matter are excluded for masses between 12 GeV/c- squared and 1.4 TeV /c-squared. There are slightly better limits on magninos and cosmions, proposed massive particles which also explain the solar-neutrino problem but which interact more strongly with Ge. In addition, millicharged shadow matter is ruled out as the main form of dark matter. (Author)
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.61.510