Improved Limits from the Galactic Axion Search
Cold, light axions are a leading candidate for the composition of dark matter in the galactic halo. An experiment designed to detect the microwave conversion signal from galactic axions has searched the frequency range 1.1–2.5 GHz. The updated limits on axion density and coupling are presented, and improvements for a possible second-generation experiment are discussed.
KeywordsDark Matter Galactic Halo Outgoing Photon Fermi National Accelerator Laboratory Loaded Quality Factor
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