Theoretical description of the pd → pdη reaction near threshold

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


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.


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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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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