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  • 1
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    The low energy atmospheric antiproton albedo (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-27
    Description: The flux of albedo antiprotons in the 100-1000 MeV kinetic energy range produced by the cosmic ray primaries in the atmosphere is calculated. It is shown that this is not a significant background to measurements of the low energy anti-proton cosmic ray flux.
    Keywords: GEOPHYSICS
    Type: AIP Conference on Cosmic Abundances of Matter; Sept. 7-9, 1988; Minneapolis, MN; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Propagation of Secondary Antiprotons and Cosmic Rays in the Galaxy (2002)
    In:  Other Sources
    Details
    Publication Date: 2019-07-18
    Description: Recent more accurate antiproton data obtained by the BESS team during the last solar minimum pose a challenge to conventional propagation models of cosmic rays. In particular, the diffusive reacceleration model, which matches well key secondary/primary isotope ratios in cosmic rays, fails to reproduce the secondary antiproton spectrum. Tuning both secondary/primary isotope ratios and antiprotons is possible, but requires artificial breaks in the diffusion coefficient and the injection spectrum of primaries. We will discuss some possibilities to overcome these difficulties in the propagation models. We will present new results of our calculation of CR propagation in the Galaxy using the GALPROP code.
    Keywords: Geophysics
    Type: LA-UR-02-2996
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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