The Nuclear Spin-Orbital Interaction and Characteristics of Light Pionic Atoms

  • A. Cieplý
  • R. Mach
Part of the Few-Body Systems book series (FEWBODY, volume 5)


Performing the angle transformation from pion-nucleon to pion-nucleus CMS frame, several Fermi motion terms appear in the first order pion-nucleus optical potential. One of them being always repulsive reflects the nuclear spin-orbital interaction and plays an important role particularly for nuclei with half-filled valence shells. We demonstrate the effects due to this term yielding a contribution to the level shifts and widths of pionic atoms. Such ideas allow one to explain the A-dependence of the 2p-level energy shifts for most of the s-d shell pionic atoms.


Optical Potential Magic Nucleus Nuclear Matrix Element Fermi Motion Nuclear Ground State 
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Copyright information

© Springer-Verlag Wien 1992

Authors and Affiliations

  • A. Cieplý
    • 1
  • R. Mach
    • 1
  1. 1.Nuclear Physics InstituteŘežCzechoslovakia

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