Summary
The results of a series of measurements for the determination of the apparent mean life of μ−-mesons in Ca and Pb, carried out by means of a recently described apparatus are reported. The values obtained are τ=(35.7±3) · 10−8 s in Ca and τ=(7.3±0.6) · 10−8 s in Pb. The results are in agreement with those obtained by other investigators and with theoretical estimations.
Riassunto
Vengono riportati i risultati di una serie di misure, eseguite con un apparato sperimentale descritto in un precedente lavoro, intese a determinare la vita media apparenteτ dei mesoni μ− in Ca e Pb. I valori ottenuti sono per il calcioτ=(35.7±3.0) · 10−8 s e per il Pbτ=(7.3±0.6) · 10−8 s. Si confrontano tali risultati con quelli ottenuti da altri sperimentatori e con talune previsioni teoriche, riscontrando un accordo soddisfacente.
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Alberigi Quaranta, A., Dore, U. & Pieraccini, F. On the determination of the mean life of μ− mesons in Ca and Pb. Nuovo Cim 14, 48–53 (1959). https://doi.org/10.1007/BF02725004
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DOI: https://doi.org/10.1007/BF02725004