Study of low energy hadronic interaction models based on BESS observed cosmic ray proton and antiproton spectra at medium high altitude
arXiv:0901.0905 · doi:10.1103/PhysRevD.79.114027
Abstract
We study low energy hadronic interaction models based on BESS observed cosmic ray proton and antiproton spectra at medium high altitude. Among the three popular low energy interaction models, we find that FLUKA reproduces results of BESS observations on secondary proton spectrum reasonably well over the whole observed energy range, the model UrQMD works well at relatively higher energies whereas spectrum obtained with GHEISHA differs significantly from the measured spectrum. Simulated antiproton spectrum with FLUKA, however, exhibits significant deviations from the BESS observation wheras UrQMD and GHEISHA reproduce the BESS observations within the experimental error.
7 pages, 7 figures
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