Axions, neutralinos, gravitinos, and axinos
Max-Planck-Institut für Physik, Föhringer Ring 6, 80805, Munich, Germany
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Published online: 9 January 2009
The existence of dark matter provides strong evidence for physics beyond the standard model. Extending the standard model with the Peccei–Quinn symmetry and/or supersymmetry, compelling dark-matter candidates appear. For the axion, the neutralino, the gravitino, and the axino, I review primordial production mechanisms, cosmological and astrophysical constraints, experimental searches, and prospects for experimental identification.
PACS: 95.35.+d – / 14.80.Mz – / 14.80.Ly –
© Springer-Verlag, 2009