Hunting for most of the universe-Dark matter

Details Hunting for most of the universe-Dark matter Hunting for most of the universe-Dark matter

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aipc..194..333c&link_type=abstract

Symposium on quantum fluids and solids-1989. AIP Conference Proceedings, Volume 194, pp. 333-341 (1989).

Astronomy and Astrophysics

Astrophysics

Origin And Formation Of The Universe, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

Probably >~90% of the mass of the universe is known to us only through its gravitational effects. The material is almost surely non-baryonic and then has to be due to a particle or particles not in the standard model of particle physics. The search for such particles, of great importance to astrophysics and particle physics, has so far been conducted with detectors developed for other purposes. Important limits on this dark matter (DM) have been set by searching in proton decay detectors for neutrinos from the annihilation of DM trapped in the sun and by looking for the scattering of DM from the nuclei of double beta decay detectors. The former experiments eliminate neutrinos and Majorana neutrinos from 10-20 GeV/c2, and recent results from the UCSB/LBL/UCB/Saclay experiments of the latter type limit DM massive Dirac neutrinos to 4-11 GeV/c2, and generally eliminate DM Dirac-type weakly interacting particles between 11 GeV/c2 and 6 TeV/c2.

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