Title: Axions: Motivation, Cosmological Role and Experimental Searches


Axions arise from a long-standing solution of the strong CP problem and almost as long have been recognized as an attractive particle candidate for the cold dark matter of the universe. Experimental searches include the direct search for galactic dark matter axions as well as the search for solar axions. The allowed parameter range is strongly constrained by astrophysical and cosmological arguments. The status and some recent developments in this field will be reviewed.