Secondary Antiprotons and Propagation of Cosmic Rays in the Galaxy and Heliosphere

  title={Secondary Antiprotons and Propagation of Cosmic Rays in the Galaxy and Heliosphere},
  author={Igor V. Moskalenko and A. W. Strong and Jonathan F. Ormes and M. S. Potgieter},
  journal={The Astrophysical Journal},
High-energy collisions of cosmic-ray nuclei with interstellar gas are believed to be the mechanism producing the majority of cosmic-ray antiprotons. Because of the kinematics of the process, they are created with a nonzero momentum; the characteristic spectral shape with a maximum at D2 GeV and a sharp decrease toward lower energies makes antiprotons a unique probe of models for particle propagation in the Galaxy and modulation in the heliosphere. On the other hand, accurate calculation of the… Expand
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Based on our three-dimensional cosmic-ray (CR) propagation model, we study the behavior of CR antiprotons (CR---> 's), and compare our numerical results with recent experimental data, particularlyExpand
  • Michael Kachelriess, I. Moskalenko, Sergey S Ostapchenko
  • Medicine, Physics
  • The Astrophysical journal
  • 2015
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