Particle components of dark matter
Abstract
Particle candidates for astrophysical dark matter are reviewed, with particular emphasis on the lightest supersymmetric particle and the axion. The former is now constrained by accelerator experiments to have a mass above about 40 GeV, and ongoing searches at accelerators, in space, and in underground experiments have a good chance to detect it. A reevaluation of the constraint on the axion from supernova 1987a leaves open an interesting window where it may be detected if it constitutes the galactic halo.
Footnotes
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* To whom reprint requests should be addressed. e-mail: john.ellis{at}cern.ch.
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↵ † In this higgsino-like region, quantum corrections to the chargino and higgsino masses are potentially significant (31).
- ABBREVIATIONS:
- LSP,
- lightest supersymmetric particle;
- LEP,
- Large Electron Positron;
- GUT,
- grand unified theory;
- CERN,
- European Center for Nuclear Research
- Copyright © 1998, The National Academy of Sciences
