Search for Short-Lived Axions in a Nuclear Isoscalar Transition [chapter]

F. W. N. de Boer, K. Abrahams, A. Balanda, H. Bokemeyer, R. van Dantzig, J. F. W. Jansen, B. Kotlinski, M. J. A. de Voigt, J. van Klinken
1986 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