Jul 26 – 30, 2010
Montpellier 2 University
Europe/Paris timezone

Microwave Cavity Searches for Axions

Jul 26, 2010, 5:00 PM
30m
Amphithéatre Dumontet (Montpellier 2 University)

Amphithéatre Dumontet

Montpellier 2 University

Place Eugene Bataillon, 34095 Montpellier Cedex 5 FRANCE
Talk Dark Matter Direct Searches Plenary session : Dark Matter Direct Searches 3

Speaker

Leslie Rosenberg (Wahington)

Description

The axion is a hypothetical elementary particle whose existence would explain the baffling absence of CP violation in the strong interactions. It's properties make it a good dark-matter candidate. Even though dark-matter axions would make up the overwhelming majority of mass in the universe, they are extraordinarily difficult to detect. However, by threading a high-Q microwave cavity with a large static magnetic field, nearby Milky-Way halo axions are stimulated to convert into microwave power within the cavity. This extremely tiny power could then be detected by sensitive electromagnetic detectors. Recently, these detectors have improved to where even the more pessimistically-coupled dark-matter axions could be detected. I will describe the progress made in this experimental search for dark-matter axions.

Primary author

Leslie Rosenberg (Wahington)

Presentation materials