t-dependence of pion production in \(\pi^-p\rightarrow\pi^0\pi^0n\)

  • F. P. SassenEmail author
  • S. Krewald
  • J. Speth


As the E852 and the GAMS Collaboration published their data for the dependence of the reaction \(\pi^-p\rightarrow\pi^0\pi^0n\) on the momentum transfered to the nucleon, questions rose, whether the \(K\bar{K}\)-molecule picture might be ruled out by their experiments. Here we report on our analysis of these data and our investigations into concerns raised in discussions, like the role of the \(NN\pi\pi\pi\) contact term. We find the molecule picture capable to explain the experimental data.


Experimental Data Contact Term Pion Production Molecule Picture 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    D. Alde, Z. Phys. C 66, 375 (1995).Google Scholar
  2. 2.
    J. Gunter, Phys. Rev. D 64, 072003 (2001).CrossRefGoogle Scholar
  3. 3.
    V.V. Anisovich, Phys. Lett. B 355, 363 (1995).CrossRefGoogle Scholar
  4. 4.
    D. Lohse, Nucl. Phys. A 516, 513 (1990).CrossRefGoogle Scholar
  5. 5.
    G. Janßen, Phys. Rev. D 52, 2690 (1995).CrossRefGoogle Scholar
  6. 6.
    A.V. Anisovich, Phys. Rev. D 62, 051502 (2000).CrossRefGoogle Scholar
  7. 7.
    M.R. Robilotta, C. Wilkin, J. Phys. G 4, L115 (1978).Google Scholar
  8. 8.
    V. Bernard, Nucl. Phys. A 359, 83 (1997).Google Scholar
  9. 9.
    R. Kamiński, Eur. Phys. J. Direct C 4, 4 (2002), arXiv:hep-ph/0109268.Google Scholar
  10. 10.
    E. Klempt, arXiv:hep-ex/0101031.Google Scholar

Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  1. 1.IKP Theorie Forschungszentrum JülichJülichGermany

Personalised recommendations