Physics
Scientific paper
Dec 1967
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1967saosr.259.....s&link_type=abstract
SAO Special Report #259 (1967)
Physics
2
Scientific paper
In interstellar and intergalactic cosmic-ray proton-proton collisions it is possible to produce nucleon isobars and hypersons that carry off a large fraction of the energy available in the collision. The delayed gamma rays that result from the decay of these particles also carry a large fraction of the available gamma-ray energy. We have calculated the galactic gamma-ray spectrum due to the decay of the nucleon isobars N*½ (1.410) and N*½ ( 1.688), for which the excitation involved no change of isotopic spin or strageness and due to the decay of hyperons (Λ,Σ+,Σ0). Results show that these reactions may be an important source of gamma rays of energy greater than 6 TeV (6 X 10 12 eV).
Fazio Giacomo
Stecker Floyd W.
Tsuruta Sachiko
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