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Authors
Journal
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
0168-9002
Publisher
Elsevier
Publication Date
Volume
264
Issue
1
Identifiers
DOI: 10.1016/0168-9002(88)91109-6
Disciplines
  • Physics

Abstract

Abstract Axions may have been created in the big bang and condensed into galactic halos to constitute the “dark” matter implied by galactic rotation curves. Experimental efforts are underway to detect these cosmic axions by conversion in the presence of an applied magnetic field to microwave photons which may be trapped by a resonant cavity. Present limits on abundance and coupling are less than three orders of magnitude higher than the values expected for all dark matter being axions; only a small part of the available phase space has been searched so far. Possible detector improvements and related laser production experiments are also discussed.

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