Skip to main content
SpringerLink
Log in

An analysis of 419 π-meson decays

  • Published:
Il Nuovo Cimento (1955-1965)

Summary

A homogeneous sample of 419 π-decays found in nuclear emulsions exposed to the Berkeley Bevatron has been used in the present analysis. Special attention has been given to reducing the effects of the experimental biases both for the scanning and for the analysis. The results show that the π-decay is nearly isotropic, corresponding in the Dalitz treatment to zero spin and negative parity.

Riassunto

Nel presente lavoro è stato analizzato un gruppo omogeneo di 419 decadimenti di mesoni τ trovati in emulsioni nuoleari esposte al Bevatrone di Berkeley. Tanto l’esplorazione quanto l’analisi sono stati eseguite in modo da ridurre al minimo l’errore di bias sperimentale. Dai risultati si ricava che il deoadimento del τ è con buona approssimazione isotropo, e corrisponde, secondo Dalitz, a spin zero e parità negativa.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. E. Amaldi:Suppl. Nuovo Cimento,4, 179 (1956);B. T. Feld, A. C. Odian, D. M. Rltson andA. Wattenberg:Phys. Rev.,100, 1539 (1955);B. Bhowmick, D. Evans, I. J. van Heerden andD. J. Peowse:Nuovo Cimento,3, 574 (1956);N. N. Biswas, L. Ceccarelli-Fabbbichesi, M. Ceccabelli, K. Gottstein. N. C. Varshneta andP. Waloschek:Nuovo Cimento,3, 825 (1956);N. Brene, K. H. Hansen, J. E. Hooper andM. Scharff:Nuovo Oimento,4, 1059 (1956);Y. Eisenberg, E. Lomon andS. Rosendorff:Nuovo Cimento,4, 610 (1956);R. P. Haddock:Nuovo Cimento,4, 240 (1956);H. H. Heckman, F. M. Smith andW. H. Barkas:Nuovo Gimento,4, 51 (1956);J. Orear, G. Harris andS. Taylor:Phys. Rev.,102, 1676 (1956);H. Winzeler, M. Teucher andE. Lohrmann: Helv.Phys. Acta,29, 75 (1956).

    Article  Google Scholar 

  2. R. H. Dalitz:Proc. Phys. Soc., A66, 710 (1953);Phil. Mag.,44, 1068 (1953);Phys. Rev.,94, 1046 (1954);99, 915 (1955); Proc.Phys. Soc., A69, 527 (1956).

    Article  ADS  Google Scholar 

  3. E. Fabri:Nuovo Cimento,11, 479 (1954).

    Article  Google Scholar 

  4. G. Costa andL. Taffara:Nuovo Cimento,3, 169 (1956).

    Article  Google Scholar 

  5. G. Baroni, G. Castagnoii, G. Cortini, G. Franzinetti andM. Manfredini: CERN,Bureau of Stdanards, Bull. No. 9.

  6. G. L. Bacchella, A. Beethelot, M. di Corato, O. Goussu, E. Levi Setti, M. René, D. Revel, L. Scarsi andG. Tomasini:Nuovo Cimento,4, 1529 (1956).

    Article  Google Scholar 

  7. D. M. Ritson:Massachusetts Institute of Technology, L.N.S. Progress Beport (in preparation).

  8. B. Bhowmik, D. Evans andJ. D. Pkowse:Nuovo Cimento,5, 1663 (1957).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Service de Physique Nucléaire de l’Université Libre de Bruxelles, Institut de Physique, Belgique

    M. Baldo-Ceolin, A. Bonetti, W. D. B. Greening, S. Limentani, M. Merlin & G. Vanderhaeghe

  2. Istituto di Scienze Fisica dell’ Università, Milano

    M. Baldo-Ceolin, A. Bonetti, W. D. B. Greening, S. Limentani, M. Merlin & G. Vanderhaeghe

  3. Sezione di Milano, Istituto Nazionale di Fisiea Nucleare, Italia

    M. Baldo-Ceolin, A. Bonetti, W. D. B. Greening, S. Limentani, M. Merlin & G. Vanderhaeghe

  4. Istituto di Fisica dell’ Università, Padova

    M. Baldo-Ceolin, A. Bonetti, W. D. B. Greening, S. Limentani, M. Merlin & G. Vanderhaeghe

  5. Sezione di Padova, Istituto Nazionale di Fisiea Nucleare, Italia

    M. Baldo-Ceolin, A. Bonetti, W. D. B. Greening, S. Limentani, M. Merlin & G. Vanderhaeghe

Authors
  1. M. Baldo-Ceolin
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. Bonetti
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. W. D. B. Greening
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. S. Limentani
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. M. Merlin
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. G. Vanderhaeghe
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Baldo-Ceolin, M., Bonetti, A., Greening, W.D.B. et al. An analysis of 419 π-meson decays. Nuovo Cim 6, 84–97 (1957). https://doi.org/10.1007/BF02827760

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02827760

Search

Navigation