Skip to main content
SpringerLink
Log in

Photoproduction of ρmesons and Δ-baryons in the reaction γp → pπ+π- at energies up to \( \sqrt{{s}}\) = 2.6 GeV

  • Published:
The European Physical Journal A - Hadrons and Nuclei Aims and scope Submit manuscript

Abstract.

The photoproduction of ρ0-mesons and Δ-baryons at photon energies up to 2.6 GeV has been studied with the SAPHIR detector at the electron stretcher ELSA. Total and differential cross-sections were obtained. The decay angular distributions of ρ0-mesons show that s-channel helicity conservation, which is valid at high photon energies, is broken near threshold. The energy dependencies of the decay angular distributions in the helicity system as well as in the Gottfried-Jackson system hint at small s- or u-channel resonance contributions. For the reactions γp → Δ{++}π- and γp → Δ0π+ new data on cross-sections are presented.

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. D. Lüke, P. Söding, Springer Tracts in Modern Physics, Vol. 59 (Springer, Berlin, Heidelberg, 1971) p. 39.

  2. J.A. Gomez Tejedor, E. Oset, Nucl. Phys. A 600, 413 (1996).

    Article  Google Scholar 

  3. ZEUS Collaboration (J. Breitweg ), Eur. Phys. J. C 2, 247 (1998).

    Article  Google Scholar 

  4. B. Friman, M. Soyeur, Nucl. Phys. A 600, 477 (1996).

    Article  Google Scholar 

  5. R. Koniuk, N. Isgur, Phys. Rev. D 21, 1868 (1980)

    Article  Google Scholar 

  6. W.J. Schwille , Nucl. Instrum. Methods Phys. Res. A 344, 470 (1994).

    Google Scholar 

  7. J. Barth , Eur. Phys. J. A 18, 117 (2003).

    Google Scholar 

  8. Aachen-Berlin-Bonn-Hamburg-Heidelberg-Munich Col\-la\-bo\-ration, Phys. Rev. 175, 1669 (1968)

    Article  Google Scholar 

  9. A. Braghieri , Phys. Lett. B 363, 46 (1995).

    Article  Google Scholar 

  10. J. Ballam , Phys. Rev. D 5, 15 (1972).

    Article  Google Scholar 

  11. M. Ripani , Nucl. Phys. A 672, 220 (2000).

    Article  Google Scholar 

  12. J. Ballam , Phys. Rev. D 5, 545 (1972).

    Article  Google Scholar 

  13. J.D. Jackson, Nuovo Cimento 34, 1644 (1964).

    Google Scholar 

  14. L.Y. Murphy, J.-M. Laget, DAPNIA-SPHN-96-10, March 1996.

  15. P. Söding, Phys. Lett. 19, 702 (1965).

    Google Scholar 

  16. M. Ross, L. Stodolsky, Phys. Rev 149, 1172 (1966).

    Article  Google Scholar 

  17. K. Hagiwara , Phys. Rev. D 66, 010001 (2002).

    Article  Google Scholar 

  18. K. Schilling, P. Seyboth, G.E. Wolf, Nucl. Phys. B 15, 397 (1970)

    Article  Google Scholar 

  19. M. Ripani , Phys. At. Nucl. 63, 1943 (2000)

    Article  Google Scholar 

  20. F. Klingl, N. Kaiser, W. Weise, Z. Phys. A 356, 193 (1996).

    Article  Google Scholar 

  21. G. Niesler, G. Piller, W. Weise, Phys. Lett. B 389, 157 (1996).

    Article  Google Scholar 

  22. M. Battaglieri, Phys. Rev. Lett. 87, 172002 (2001).

    Article  Google Scholar 

  23. Y. Oh, T.-S.H. Lee, Phys. Rev. C 69, 025201 (2004).

    Article  Google Scholar 

  24. J. Ballam , Phys. Rev. Lett. 24, 17 (1970).

    Google Scholar 

  25. F.J. Gilman, J. Pumplin, A. Schwimmer, L. Stodolsky, Phys. Lett. B 31, 387 (1970).

    Article  Google Scholar 

  26. D. Lüke, M. Scheunert, P. Stichel, DESY Report No. 68/7 (1968)

  27. Cambridge Bubble Chamber Group, Phys. Rev. 163, 1510 (1967).

    Article  Google Scholar 

  28. P. Stichel, M. Scholz, Nuovo Cimento 34, 1381 (1964).

    Google Scholar 

  29. M. Locher, W. Sandhas, Z. Phys. 195, 461 (1966).

    Google Scholar 

  30. F.J. Klein, Bonn University thesis BONN-IR-96-08.

  31. M. Guidal, J.-M. Laget, M. Vanderhaeghen, Phys. Lett. B 400, 6 (1997).

    Article  Google Scholar 

  32. R.L. Anderson , Phys. Rev. D 14, 679 (1976).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Physikalisches Institut, Bonn University, Bonn, Germany

    C. Wu, J. Barth, W. Braun, K. -H. Glander, J. Hannappel, N. Jöpen, F. J. Klein, F. Klein, R. Lawall, D. Menze, W. Neuerburg, M. Ostrick, E. Paul, I. Schulday, W. J. Schwille, B. Wiegers, F. W. Wieland & J. Wißkirchen

  2. Helmholtz-Institut für Strahlen- und Kernphysik, Bonn University, Bonn, Germany

    J. Ernst, H. Kalinowsky, E. Klempt, J. Link & H. van Pee

Authors
  1. C. Wu
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. J. Barth
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. W. Braun
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. J. Ernst
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. K. -H. Glander
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. J. Hannappel
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. N. Jöpen
    View author publications

    You can also search for this author in PubMed Google Scholar

  8. H. Kalinowsky
    View author publications

    You can also search for this author in PubMed Google Scholar

  9. F. J. Klein
    View author publications

    You can also search for this author in PubMed Google Scholar

  10. F. Klein
    View author publications

    You can also search for this author in PubMed Google Scholar

  11. E. Klempt
    View author publications

    You can also search for this author in PubMed Google Scholar

  12. R. Lawall
    View author publications

    You can also search for this author in PubMed Google Scholar

  13. J. Link
    View author publications

    You can also search for this author in PubMed Google Scholar

  14. D. Menze
    View author publications

    You can also search for this author in PubMed Google Scholar

  15. W. Neuerburg
    View author publications

    You can also search for this author in PubMed Google Scholar

  16. M. Ostrick
    View author publications

    You can also search for this author in PubMed Google Scholar

  17. E. Paul
    View author publications

    You can also search for this author in PubMed Google Scholar

  18. H. van Pee
    View author publications

    You can also search for this author in PubMed Google Scholar

  19. I. Schulday
    View author publications

    You can also search for this author in PubMed Google Scholar

  20. W. J. Schwille
    View author publications

    You can also search for this author in PubMed Google Scholar

  21. B. Wiegers
    View author publications

    You can also search for this author in PubMed Google Scholar

  22. F. W. Wieland
    View author publications

    You can also search for this author in PubMed Google Scholar

  23. J. Wißkirchen
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to W. J. Schwille.

Additional information

Th. Walcher

Rights and permissions

Reprints and permissions

About this article

Cite this article

Wu, C., Barth, J., Braun, W. et al. Photoproduction of ρmesons and Δ-baryons in the reaction γp → pπ+π- at energies up to \( \sqrt{{s}}\) = 2.6 GeV. Eur. Phys. J. A 23, 317–344 (2005). https://doi.org/10.1140/epja/i2004-10093-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1140/epja/i2004-10093-9

PACS.

Search

Navigation