Skip to main content
SpringerLink
Log in

The photo-production of π+-mesons from protons

  • Published:
Il Nuovo Cimento (1955-1965)

Summary

The photo-production reaction γ+p→n+π+ has been studied using the nuclear emulsion technique and a high-pressure hydrogen gas target. The differential cross-section has been measured at six photon energies from 170 MeV to 220 MeV in the laboratory system and at angles between 20° and 160° in the centre-of-mass system. Angular distributions are presented and also the energy-dependence of thea +0 coefficient. General agreement is found with previous data.

Riassunto

Si è studiata la reazione di fotoproduzione γ+p→n+π+ con la tecnica delle emulsioni nucleari e un bersaglio di idrogeno gassoso ad alta pressione. Si è misurata la sezione efficace a sei energie dei fotoni da 170 MeV a 220 MeV nel sistema del laboratorio e ad angoli fra 20° e 160° nel sistema del centro di massa. Si presentano le distribuzioni angolari e anche la dipendenza del coefficientea +0 dall’energia. Si trova un accordo generale con i dati precedenti.

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. M. McMillan andJ. M. Patterson:Science,109, 438 (1949).

    Google Scholar 

  2. M. Beneventano, G. Bernardini, D. Carlson-Lee, G. Stoppini andL. Tau:Nuovo Cimento,4, 323 (1956).

    Article  Google Scholar 

  3. M. J. Moravcsik:Phys. Rev.,107, 600 (1957).

    Article  ADS  Google Scholar 

  4. G. F. Chew, M. L. Goldberger, F. E. Low andY. Nambu:Phys. Rev.,106, 1345 (1957).

    Article  MathSciNet  ADS  MATH  Google Scholar 

  5. M. I. Adamovich, E. G. Gorzherskoia, V. G. Larionova, V. M. Popova, S. P. Kharlamov andF. R. Yagudina:Soviet Physics JETP,11, 779 (1960).

    Google Scholar 

  6. J. Kirk:Journ. Sci. Instr.,38, 439 (1961).

    Article  ADS  Google Scholar 

  7. A. S. Penfold andJ. E. Leiss:Analysis of Photo-cross-sections, Physics Research Laboratory, University of Illinois (1958).

  8. L. I. Schiff:Phys. Rev.,83, 252 (1951).

    Article  ADS  Google Scholar 

  9. C. C. Dilworth, C. P. S. Occhialini andL. Versmaesen:Bulletin of University of Brussels, no.13 a (1950).

  10. A. M. Shapiro:Rev. Mod. Phys.,28, 164 (1956).

    Article  ADS  Google Scholar 

  11. H. Fay, K. Gottstein andK. Hain:Suppl. Nuovo Cimento,11, 234 (1954).

    Article  Google Scholar 

  12. D. H. Stork:Phys. Rev.,93, 868 (1954).

    Article  ADS  Google Scholar 

  13. H. Bradner andB. Rankin:Phys. Rev.,87, 547 (1952).

    Article  ADS  Google Scholar 

  14. M. Rich andR. Madey: University of California, Radiation Laboratories UCRL 2301 (1954).

  15. C. S. Robinson: University of Illinois, Report no. 8, Contract ONR 1834 (05) (1959).

  16. P. Salin: University of Bordeaux, Report PTB 16 (1962).

  17. J. H. Malmberg andC. S. Robinson:Phys. Rev.,109, 158 (1958).

    Article  ADS  Google Scholar 

  18. A. M. Baldin:Soviet Physics JETP,11, 416 (1960).

    MathSciNet  Google Scholar 

  19. J. L. Uretsky, R. W. Kenney, E. A. Knapp andV. Perez-Mendez:Phys. Rev. Lett.,1, 12 (1958).

    Article  ADS  Google Scholar 

  20. J. G. Rutherglen, J. K. Walker, D. Miller andJ. M. Patterson:CERN Symp. Proc. (1960).

  21. G. M. Lewis, R. E. Azuna, E. Gabathuler, D. W. G. S. Leith andW. R. Hogg:Phys. Rev.,125, 378 (1962).

    Article  ADS  Google Scholar 

  22. J. S. Ball:Phys. Rev.,124, 2014 (1961).

    Article  MathSciNet  ADS  MATH  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. University of Glasgow, Glasgow

    J. Kirk & J. McElroy

Authors
  1. J. Kirk
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. J. McElroy
    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

Kirk, J., McElroy, J. The photo-production of π+-mesons from protons. Nuovo Cim 31, 705–715 (1964). https://doi.org/10.1007/BF02733788

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02733788

Search

Navigation