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Short-range NN properties in the processes \(pd \to dp\) and \(pd \to (pp)n\)

  • Yu N. UzikovEmail author
  • V. I. Komarov
  • F. Rathmann
  • H. Seyfarth
Article

Abstract.

The data from the first measurement, performed at ANKE/COSY, of the unpolarized cross-section of the reaction \(pd \to (pp)n\) in the kinematics of backward elastic \(pd \to dp\) scattering at proton beam energies between 0.6 and 1.9 GeV are analyzed in a phenomenological approach. The \(pd \to (pp)n\) data and the triplet cross-section of the reaction \(pd\to (pn)p\), calculated from the \(pd \to dp\) data on the basis of the Fäldt-Wilkin extrapolation, are used here to derive the ratio \(\zeta\) of the singlet production matrix element squared to the triplet one. This ratio, defined in our earlier analysis of \(pd\to (pn)p\) data in a largely model-independent way, depends on the dynamics of the pd interaction. We find here \(\zeta\approx 0.02\) and show that the smallness of this value may point toward softness of the deuteron at short NN distances.

Keywords

Matrix Element Beam Energy Proton Beam Production Matrix Early Analysis 
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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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  • Yu N. Uzikov
    • 1
    • 2
    Email author
  • V. I. Komarov
    • 2
  • F. Rathmann
    • 3
  • H. Seyfarth
    • 3
  1. 1.Kazakh National UniversityAlmatyKazakhstan
  2. 2.Laboratory of Nuclear ProblemsJoint Institute for Nuclear ResearchDubnaRussia
  3. 3.Institut für KernphysikForschungszentrum JülichJülichGermany

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