Lettere al Nuovo Cimento (1971-1985)

, Volume 37, Issue 16, pp 569–572 | Cite as

An exotic decay of orthopositronium?

  • J. Cleymans
  • P. S. Ray


A discrepancy is apparent between the higher-order QED calculations and a recent experiment on the decay rate of the orthopositronium. It is conjectured here that this can be due to a possible pseudoscalar interaction of the electron-positron field.


14.80 Other and hypothetical particles 


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Copyright information

© Società Italiana di Fisica 1983

Authors and Affiliations

  • J. Cleymans
    • 1
  • P. S. Ray
    • 1
  1. 1.Department of Theoretical PhysiosUniversity of BielefeldBielefeld 1W. Germany

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