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Theoretical description of the pd → pdη reaction near threshold

  • U. Tengblad
  • G. Fäldt
  • C. WilkinEmail author
Original Article

Abstract.

The contributions of three different types of driving terms are included in the estimation of the pdpdη reaction at low energies. Near threshold, it is predicted that a two-step model involving an intermediate pion should be the most important but, as the energy approaches the threshold for η production in the free nucleon-nucleon reaction, a pick-up mechanism with a spectator proton should become dominant. The total cross-sections are underestimated by about a factor of two compared with experimental data but the discrepancies in the angular distributions are more serious, with no sign in the data for the peaks corresponding to the pick-up diagram.

PACS.

25.10.+s Nuclear reactions involving few-nucleon systems 13.60.Le Meson production 14.40.Aq π, K, and η mesons 

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References

  1. 1.
    J. Berger, Phys. Rev. Lett. 61, 919 (1998).CrossRefGoogle Scholar
  2. 2.
    J.-F. Germond, C. Wilkin, J. Phys. G 15, 437 (1989).CrossRefGoogle Scholar
  3. 3.
    K. Kilian, H. Nann, AIP Conf. Proc. 221, 185, (1990).Google Scholar
  4. 4.
    G. Fäldt, C. Wilkin, Nucl. Phys. A 587, 769 (1995).CrossRefGoogle Scholar
  5. 5.
    B. Mayer, Phys. Rev. C 53, 2068, (1996).CrossRefGoogle Scholar
  6. 6.
    F. Hibou, Eur. Phys. J. A 7, 537, (2000).CrossRefGoogle Scholar
  7. 7.
    U. Tengblad, TSL/ISV Report No. 96-0163 (1996), unpublished.Google Scholar
  8. 8.
    R. Bilger, Phys. Rev. C 69, 014003, (2004).CrossRefGoogle Scholar
  9. 9.
    R. Bilger, Phys. Rev. C 65, 044608 (2002).CrossRefGoogle Scholar
  10. 10.
    H. Calén, Phys. Rev. Lett. 79, 2642, (1997)CrossRefGoogle Scholar
  11. 11.
    G. Fäldt, C. Wilkin, Phys. Scr. 64, 427, (2001).CrossRefGoogle Scholar
  12. 12.
    H. Calén, Phys. Lett. B 366, 39, (1996).CrossRefGoogle Scholar
  13. 13.
    H. Calén, Phys. Rev. C 58, 2667, (1998).CrossRefGoogle Scholar
  14. 14.
    R. Arndt, Phys. Rev. C 48, 1926, (1993)CrossRefGoogle Scholar
  15. 15.
    J.-M. Laget, J.-F. Lecolley, Phys. Rev. Lett. 61, 2069, (1988).CrossRefPubMedGoogle Scholar
  16. 16.
    G. Fäldt, C. Wilkin, Phys. Lett. B 382, 209, (1996).CrossRefGoogle Scholar
  17. 17.
    J. Złomańczuk, private communication.Google Scholar
  18. 18.
    Y. Valdau, private communication.Google Scholar

Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  1. 1.Department of Radiation SciencesUppsalaSweden
  2. 2.Department of Physics & AstronomyUCLLondonUK

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