Summary
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.
Riassunto
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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Bailey, J., Bartl, W., von Bochmann, G. et al. Precise measurement of the anomalous magnetic moment of the muon. Nuov Cim A 9, 369–432 (1972). https://doi.org/10.1007/BF02785248
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DOI: https://doi.org/10.1007/BF02785248