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Preferred term

positronium  

Definition

  • Positronium is a neutral, atom-like system formed between an electron and a positron (the electron's antiparticle), held together by electromagnetic attraction. The name "positronium" was introduced by A. E. Ruark in 1945 and the system was first observed in 1951. (Encyclopedia of Science, by David Darling, https://www.daviddarling.info/encyclopedia/P/positronium.html)

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URI

http://data.loterre.fr/ark:/67375/MDL-Q1GKMM31-D

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