A proposal to search for a monochromatic component of solar axions using 57Fe
Abstract
A new experimental scheme is proposed to search for almost monochromatic solar axions, whose existence has not been discussed heretofore. The axions would be produced when thermally excited 57Fe in the sun relaxes to its ground state and could be detected via resonant excitation of the same nuclide in a laboratory. A detailed calculation shows that the rate of the excitation is up to order 10 events/day/kg-57Fe. The excitation can be detected efficiently using bolometers or liquid scintillators.
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