Pionic Atoms, the Relativistic Mean-Field Theory and the Pion-Nucleon Scattering Lengths

  • P. F. A. Goudsmit
  • H. J. Leisi
  • E. Matsinos
Conference paper
Part of the Few-Body Systems book series (FEWBODY, volume 5)


The pseudoscalar πNN mixing parameter x=0.24±0.06 and the strength of the scalar meson field for pions \({{S}_{\pi }}=-34\pm 14\) MeV have been determined from pionic atoms. A model for the low-energy π-nucleon interaction is proposed and scattering lengths (volumes) calculated.


Scalar Meson Pionic Atom Phase Shift Data Relativistic Nuclear Physic Nucleon Effective Mass 
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Copyright information

© Springer-Verlag Wien 1992

Authors and Affiliations

  • P. F. A. Goudsmit
    • 1
  • H. J. Leisi
    • 1
  • E. Matsinos
    • 1
  1. 1.Institute for Intermediate Energy PhysicsETH ZürichVilligen PSISwitzerland

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