Laboratory limits on galactic cold dark matter

Journal Article · Mon Aug 01 00:00:00 EDT 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.61.510· OSTI ID:6921286

Caldwell, D O; Eisberg, R M; Grumm, D M; Witherell, M S; Sadoulet, B; Goulding, F S; Smith, A R

Interesting limits are set on candidates for cold-dark-matter particles in the halo of our 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/sup 2/ and 1.4 TeV/c/sup 2/. 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.

• Research Organization: Department of Physics, University of California, Santa Barbara, California 93106
• OSTI ID: 6921286
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 61:5
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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MASS
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COSMIC NEUTRINOS
COSMIC RAY DETECTION
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RADIATIONS
RESOLUTION
SCINTILLATION COUNTERS
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645100 - High Energy Physics- Particle Interactions & Properties-Experimental