Speaker:  Dr. Leslie Rosenberg

University of Washington

The Search for Dark-Matter Axions

The axion is a hypothetical elementary particle whose existence would explain the baffling absence of CP violation in the strong interactions. Axions also happen to be a compelling dark-matter candidate.

Even if dark-matter axions were to comprise the overwhelming majority of mass in the universe, they would be extraordinarily difficult to detect. However, several experiments, either under construction or taking

data, would be sensitive to even the more pessimistically coupled axions.

This talk describes the current state of these searches.