Threshold open charm production in nucleon-nucleon collisions

  • M.P. Rekalo
  • E. Tomasi-Gustafsson


The associative charm particles production in nucleon-nucleon collisions N + N↦Λcc) + ¯D + N, is described in a general way and the spin and isospin structure of the corresponding matrix elements are derived. Using an analogy with strange-particle (ΛK) production, the D-meson exchange model is considered in detail. Estimations of the energy behavior of the threshold cross-sections show a large dependence on the form of the phenomenological hadron form factors and indicate that, at threshold, the cross-section is three orders of magnitude smaller than for strange-particle production.

PACS. 13.85.-t Hadron-induced high- and super-high-energy interactions (energy > 10 GeV) – 14.20.Lq Charmed baryons – 14.40.Lb Charmed mesons 


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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2003

Authors and Affiliations

  • M.P. Rekalo
    • 1
  • E. Tomasi-Gustafsson
    • 2
  1. 1.Middle East Technical University, Physics Department, Ankara 06531, TurkeyTR
  2. 2.DAPNIA/SPhN, CEA/Saclay, 91191 Gif-sur-Yvette Cedex, FranceFR

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