Speaker
Description
The Dark Matter Particle Explorer (DAMPE) has made significant progress in measuring cosmic ray nuclei. These new measurements are pivotal in advancing our understanding of the origins and propagation mechanisms of cosmic rays. The Bismuth Germanium Oxide (BGO) calorimeter plays a crucial role in these measurements, particularly in the precise determination of cosmic ray fluxes. However, for a calorimetric experiment like DAMPE, uncertainties in hadronic models persist as a major barrier to achieving more accurate measurements of cosmic ray nuclei. This study presents the measurement of the inelastic hadronic cross sections of carbon and oxygen nuclei using BGO crystals over an extended energy range, spanning from 200 GeV to 10 TeV. Additionally, this measurement allows us to validate the consistency of Monte Carlo models, such as FTFP in Geant4 and DPMJET in FLUKA, and the experimental data, thereby ensuring the reliability of DAMPE's observations of carbon and oxygen cosmic-ray fluxes.
| Collaboration(s) | DAMPE |
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