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Weak and Electromagnetic Interactions in Nuclei
Axions, if existing, can cause a strong signal of positron-electron pairs in isoscalar M1 transitions in competition with gamma-ray emission. We searched for such a signal in the 3.59 MeV transition in I°B with a fourfold Mini-Orange spectrometer. No axion events were found within two percent of the prediction for the standard axion-to ~,-ray branching ratio.doi:10.1007/978-3-642-71689-8_174 fatcat:gjlwdskz75d3hgpkqncqbxympi