Analysis of proton-carbon inelastic cross sections measured in satellite experiment and upper limit on primary cosmic ray deuteron flux in the energy range 20 to 600 GeV |
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Authors: | Som N Ganguli R Raghavan A Subramanian |
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Institution: | (1) Tata Institute of Fundamental Research, 400005 Bombay |
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Abstract: | An analysis has been made of the experimental results of Akimovet al on the inelastic cross sections of proton on proton and carbon targets in the energy range 20 to 600 GeV obtained from artificial
earth satellites. It is found that an upper limit of 4% at 95% confidence level can be set on the fraction of deuterons relative
to the flux of protons in the primary cosmic radiation at energies in the range 20 to 60 GeV. There is an indication for a
rise of (29±7) mb in the inelastic cross section of proton against carbon in the energy range of 200 to 600 GeV over and above
what is expected from Glauber’s theory. If this rise has to be interpreted as due to contamination from cosmic ray deuterons,
the fraction of deuterons relative to protons needed is (15±4)% in this energy region. |
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Keywords: | Inelastic cross section (20 to 600 GeV) Glauber multiple scattering theory flux of deuterons in primary cosmic rays |
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