Advertisement

Il Nuovo Cimento (1955-1965)

, Volume 24, Issue 3, pp 405–410 | Cite as

Experimental evaluation of the π+→π0+e++ν decay probability

  • A. F. Dunaitsev
  • V. I. Petrukhin
  • Yu. D. Prokoshkin
  • V. I. Rykalin
Article

Summary

By means of γ-γ coincidences it has been shown that the probability of positive pion β-decay does not exceed 7·10−8 of the probability of muon decay of pion. For the constant G which determines the intensity of this process in the case of vector current conservation the following evaluation has been obtained:G < 2.5Gβ, whereGβ is the constant of weak vector β-interaction.

Riassunto

A mezzo di coincidenze γ-γ si è dimostrato che la probabilità del decadimento β del pione positivo non supera 7·10−8 volte la probabilità del decadimento del pione in un muone. Per la costanteG, che determina l’intensità di questo processo nel caso della conservazione della corrente vettoriale, si è ottenuto il seguente valore: G < 2.5Gβ, in cuiGβ è la costante della interazione β vettoriale debole.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. (1).
    H. L. Anderson, T. Fujii, R. H. Miller andL. Tau:Phys. Rev.,119, 2050 (1960).ADSCrossRefGoogle Scholar
  2. (2).
    Ya. B. Zeldovich:Dokl. Ak. Nauk SSSR,97, 421 (1954).Google Scholar
  3. (3).
    R. P. Feynman, M. Gell-Mann:Phys. Rev.,109, 193 (1958);E. C. G. Sudarshan andR. E. Marshak:Proc. of Padua Conf. (1957).MathSciNetADSCrossRefMATHGoogle Scholar
  4. (4).
    S. S. Gerstein andYa. B. Zeudovich:Žurn. Ėksp. Teor. Fiz.,29, 698 (1955).Google Scholar
  5. (5).
    G. Da Prato andG. Putzolu:Nuovo Cimento,21, 541 (1961).CrossRefGoogle Scholar
  6. (6).
    A. F. Dunaitsev, Yu. D. Prokoshkin andTang Stao-wei:Nucl. Instr.,8, 11 (1960).ADSCrossRefGoogle Scholar
  7. (7).
    Yu. D. Prokoshkin andTang Syao-wei:Žurn. Ėksp. Teor. Fiz.,36, 10 (1959);Prib. Teh. Ėksp.,3, 32 (1959).Google Scholar
  8. (8).
    Yu. A. Budagov, S. Viktor, V. P. Dzhelepov, P. F. Ermolov andV. I. Moskalev:Žurn. Ėksp. Tear. Fiz.,37, 878(1959);G. Impeduglia, R. Plano, A. Prodell, N. Samios M. Schwartz andJ. Steinberger:Phys. Rev. Lett.,1, 249 (1958).Google Scholar

Copyright information

© Società Italiana di Fisica 1962

Authors and Affiliations

  • A. F. Dunaitsev
    • 1
  • V. I. Petrukhin
    • 1
  • Yu. D. Prokoshkin
    • 1
  • V. I. Rykalin
    • 1
  1. 1.Joint Institute for Nuclear ResearchDubna

Personalised recommendations