Some Multiple Scattering Effects in Antinucleon Annihilation on Nuclei

  • A. V. Stepanov
  • V. P. Zavarzina
Conference paper
Part of the Few-Body Systems book series (FEWBODY, volume 9)


Antiproton annihilation cross sections on nuclei from 20Ne to 208Pb are calculated in the framework of a microscopic optical model in the kinetic energy range E L = 50–2000 MeV both directly in the initial channel and after single quasi-free collision. The part of annihilation yield after one quasi-free nucleon knock-out from the nucleus is 20–25% of the conribution to the annihilation cross section in the initial channel. The sensitivity of this cross section to the parameters of antinucleon-nucleon scattering amplitude is investigated. Calculated ratios of volume to surface annihilation cross section are compared with experimental ones.


Inelastic Scattering Optical Potential Annihilation Cross Section Eikonal Approximation Nuclear Surface 
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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • A. V. Stepanov
    • 1
  • V. P. Zavarzina
    • 1
  1. 1.Institute for Nuclear ResearchRussian Academy of SciencesMoscowRussia

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