After briefly recalling the evidence which suggests that the dark matter pervading the universe is nonbaryonic, we review the present searches for the best motivated particle candidates: axions, light neutrinos and Weakly Interacting Massive Particles (WIMPs).
Dark Matter direct searches
β Scribed by Gascon, J
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 191 KB
- Volume
- 520
- Category
- Article
- ISSN
- 0168-9002
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β¦ Synopsis
Different techniques are currently competing in the direct search of Weakly Interacting Massive Particles (WIMP) dark matter, which consists in observing in the laboratory nuclear recoils due to impact of WIMPs from our galactic halo. As an introduction to this Dark Matter session, the experimental context, the key challenges and the different techniques will be briefly summarized. The performance achieved by low-temperature detectors confers to them a leading role in this domain.
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The search for dark matter WIMPs is complementary to direct searches and accelerator searches. The status of present searches and prospects for the future are reviewed.
WIMP annihilations are required to reproduce the correct dark matter abundance in the Universe. This process can occur in dense regions of our Galaxy such as the Galactic center, dwarf galaxies and other types of sub-haloes. High-energy g-rays are produced in dark matter particle collisions and can
The current status of direct dark matter searches is reviewed, with special emphasis on the effect of various backgrounds to the sensitivity attainable by this technology. The current leader in sensitivity is the Cryogenic Dark Matter Search, now operating at the Soudan Underground Laboratory in Min