Recent Cosmic Ray Anti-proton Measurements and Astrophysical Implications

1981
Published in:
  • Astrophys.J.Lett. 247 (1981) L105-L109

Citations per year

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Abstract: (ADS)
Cosmic-ray antiprotons have been detected by a new balloon-borne experiment which covers the energy range between 130 and 320 MeV. Fourteen detected events yield a measured flux of 1.7 plus or minus 0.5 x 10 to the -4th antiprotons/sq m sr s MeV. The corresponding antiproton/proton ratio is 2.2 plus or minus 0.6 x 10 to the -4th, only slightly smaller than the ratio observed by other experiments at higher energies. The measured flux is significantly larger than predicted, and some cosmic-ray models which could explain this result are discussed.
  • ANTI-P: COSMIC RADIATION
  • ANTI-P: FLUX
  • FLUX: ANTI-P
  • ANTI-P P: RATIO
  • SPARK CHAMBER: EXPERIMENTAL RESULTS
  • TRIGGER
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