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Lifetime of Λ0 ϑ0, and Σ−

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Il Nuovo Cimento (1955-1965)

Summary

The lifetimes of the Λ0, ϑ0, and Σ− observed in bubble chamber photographs have been calculated. The following values are obtained: τΛ°=(2.29 +.15-.13 )·10-10 s on the basis of 454 events; τθ°=(1.06 +0.8-.06 ) ·10-10s on the basis of 259 events and τΣ°=(1.89 +.33-.25 )·10-10 s on the basis of 107 events. A comparison with previous values of the mean lives is presented.

Riassunto

Sono state calcolate le vite medie delle Λ0, ϑ0 e Σ− osservate in camere a bolle. I valori ottenuti sono i seguenti: τΛ°=(2.29 +.15-.13 )·10-10 s, in base a 454 eventi; τθ°=(1.06 +0.8-.06 )·10-10 s in base a 259 eventi; τΣ°=(1.89 +.33-.25 )·10-10 s, in base a 107 eventi. Viene presentato un confronto con precedenti valori delle stesse vite medie.

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References

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Authors and Affiliations

  1. Columbia University and Brookhaven National Laboratory, New York

    F. Eisler, R. Plano, A. Prodell, N. Samios, M. Schwartz & J. Steinberger

  2. Istituto di Fisica dell’Università, Bologna

    P. Bassi, V. Borelli, G. Puppi, H. Tanaka, P. Waloschek & V. Zoboli

  3. Istituto di Fisica dell’Università, Pisa

    M. Conversi, P. Franzini, I. Mannelli, R. Santangelo & V. Silvestrini

Authors
  1. F. Eisler
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  2. R. Plano
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  3. A. Prodell
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  4. N. Samios
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  5. M. Schwartz
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  6. J. Steinberger
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  7. P. Bassi
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  8. V. Borelli
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  9. G. Puppi
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  10. H. Tanaka
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  11. P. Waloschek
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  12. V. Zoboli
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  13. M. Conversi
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  14. P. Franzini
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  15. I. Mannelli
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  16. R. Santangelo
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  17. V. Silvestrini
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Additional information

This research is supported by the Atomic Energy Commission and the Office of Naval Research.

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Eisler, F., Plano, R., Prodell, A. et al. Lifetime of Λ0 ϑ0, and Σ− . Nuovo Cim 10, 150–154 (1958). https://doi.org/10.1007/BF02859613

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  • DOI: https://doi.org/10.1007/BF02859613

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