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Hadronic threshold reactions

  • W. OelertEmail author
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Abstract.

First investigations on meson production at threshold in the strong interaction began in the fifties when sufficient energies of accelerated protons were available. Early experiments performed with bubble chambers revealed already typical ingredients of threshold studies, which were superseded by more complete meson production investigations at the nucleon beam facilities TRIUMF, LAMPF, PSI, LEAR and SATURNE. Currently, at the cooler rings IUCF, CELSIUS and COSY the field is entering a new domain of precision and further progress. The analysis of this new data in the short-range limit permits a more fundamental consideration and a quantitative comparison of the production processes for different mesons in the few-body final states. The interpretation of the data takes advantage of the fact that production reactions close to threshold are characterized by only a few degrees of freedom between a well-defined combination of initial and exit channels. Deviations from predictions of phase-space-controlled one-meson exchange models are indications of new physics. Precision data on differential cross-sections, isospin and spin observables --partly but by no means adequately available-- are presently turning up.

Keywords

Quantitative Comparison Exchange Model Sufficient Energy Precision Data Exit Channel 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    C. Wilkin, nucl-th/9810047 and Proceedings of the 8th International Conference On The Structure Of Baryons (Baryons 98), September 22-26, 1998, Bonn, Germany, edited by D.W. Menze, B. Metsch (World Scientific, Singapore, 1999) p. 505.Google Scholar
  2. 2.
    M. Gell-Mann, K.M. Watson, Annu. Rev. Nucl. Sci. 4, 219 (1954).zbMATHGoogle Scholar
  3. 3.
    A.H. Rosenfeld, Phys. Rev. 96, 130 (1954).CrossRefGoogle Scholar
  4. 4.
    D. Koltun, A. Reitan, Phys. Rev. 141, 1413 (1966).CrossRefGoogle Scholar
  5. 5.
    M.E. Schillaci, Phys. Rev. 179, 1539 (1969).CrossRefGoogle Scholar
  6. 6.
    H.O. Meyer, Nucl. Phys. A 539, 633 (1992).CrossRefGoogle Scholar
  7. 7.
    H.O. Meyer, Phys. Rev. Lett. 65, 2846 (1990).CrossRefGoogle Scholar
  8. 8.
    W.W. Daehnick, Phys. Rev. Lett. 74, 2913 (1995).CrossRefGoogle Scholar
  9. 9.
    T.S.H. Lee, D.O. Riska, Phys. Rev. Lett. 70, 2237 (1993).CrossRefGoogle Scholar
  10. 10.
    C. Hanhart, Phys. Lett. B 358, 21 (1995).CrossRefGoogle Scholar
  11. 11.
    C. Hanhart, Phys. Lett. B 444, 25 (1998).CrossRefGoogle Scholar
  12. 12.
    C. Hanhart, Phys. Rev. C 61, 064008 (2000).CrossRefGoogle Scholar
  13. 13.
    B. Blankleider, A.N. Kvinikhidze, Few-Body Syst. Suppl. 12, 223 (2000).Google Scholar
  14. 14.
    S. Wycech, A.M. Green, Nucl. Phys. A 663, 529 (2000).CrossRefGoogle Scholar
  15. 15.
    A. Fix, H. Arenhovel, Nucl. Phys. A 697, 277 (2002).CrossRefGoogle Scholar
  16. 16.
    K.M. Watson, Phys. Rev. 88, 1163 (1952).CrossRefzbMATHGoogle Scholar
  17. 17.
    C. Hanhart, K. Nakayama, Phys. Lett. B 454, 176 (1999).CrossRefGoogle Scholar
  18. 18.
    F. Kleefeld, nucl-th/0108064 and Proceedings of the Symposium on Threshold Meson Production in pp and pd Interactions, June 20-24, 2001, Cracow, Poland, Schriften des FZ-Jülich, Matter and Materials, edited by P. Moskal, M. Wolke, Vol. 11, (Forschungszentrum Jülich, 2002) p. 51.Google Scholar
  19. 19.
    K. Nakayama, nucl-th/0108032 and Proceedings of the Symposium on Threshold Meson Production in pp and pd Interactions, June 20-24, 2001, Cracow, Poland, Schriften des FZ-Jülich, Matter and Materials, edited by P. Moskal, M. Wolke, Vol. 11, (Forschungszentrum Jülich, 2002).Google Scholar
  20. 20.
    C. Hanhart, U. van Kolck, G.A. Miller, Phys. Rev. Lett 85, 2905 (2000).CrossRefGoogle Scholar
  21. 21.
    N.I. Kochelev, V. Vento, A.V. Vinnikov, Phys. Lett. B 472, 247 (2000).CrossRefGoogle Scholar
  22. 22.
    M. Dillig, hep-ph/0202067.Google Scholar
  23. 23.
    N. Kaiser, P.B. Siegel, W.Weise, Nucl. Phys. A 594, 325 (1995).CrossRefGoogle Scholar
  24. 24.
    N. Kaiser, T. Waas, W. Weise, Nucl. Phys. A 612, 297 (1997).CrossRefGoogle Scholar
  25. 25.
    W. Weise, U.-G. Meißner, GSI - HESR-Project, Contributions to the Scientific Case (1999) p. 103.Google Scholar

Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  1. 1.IKP-IForschungszentrum JülichJülichGermany

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