Il Nuovo Cimento A (1965-1970)

, Volume 9, Issue 4, pp 369–432 | Cite as

Precise measurement of the anomalous magnetic moment of the muon

  • J. Bailey
  • W. Bartl
  • G. von Bochmann
  • R. C. A. Brown
  • F. J. M. Farley
  • M. Giesch
  • H. Jöstlein
  • S. van der Meer
  • E. Picasso
  • R. W. Williams


The anomalous magnetic momenta≡1/2 (g−2) of the muon has been measured in the CERN muon storage ring. The result is (116 616±31)·10−8 compared with the theoretical value (116 588±2)·10−8 showing agreement to (240±270) parts per million. The lifetime of muons moving in a circular orbit with γ=12 was found to agree with the time dilation predicted by special relativity to within 1.1%. Details are given of the storage ring magnet, the instrumentation and the data analysis. The theoretical implications of the result are discussed.

Точное измерение аномального магнктного момента мюона


Si è misurato il momento magnetico anomaloa≡1/2 (g−2) del muone nell'anello di accumulazione di muoni del CERN. Il risultato è (116 616±31)·10−8 in confronto al valore teorico (116 588±2)·10−8 con un accordo di (240±270) parti per milione. Si è trovato che la vita media dei muoni che si muovono su un'orbita circolare con γ=12 concorda con la dilatazione del tempo predetta dalla relatività ristretta entro 1.1%. Si espongono i dettagli del magnete dell'anello di accumulazione, della strumentazione e dell'analisi dei dati. Si discutono le implicazioni teoriche dei risultati.


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Copyright information

© Società Italiana di Fisica 1972

Authors and Affiliations

  • J. Bailey
    • 1
  • W. Bartl
    • 1
  • G. von Bochmann
    • 1
  • R. C. A. Brown
    • 1
  • F. J. M. Farley
    • 1
  • M. Giesch
    • 1
  • H. Jöstlein
    • 1
  • S. van der Meer
    • 1
  • E. Picasso
    • 1
  • R. W. Williams
    • 1
  1. 1.CERNGeneva

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