Antiprotons from Spallations of Cosmic Rays on Interstellar Matter
作者： F. Donato , D. Maurin , P. Salati , A. Barrau , G. Boudoul
DOI: 10.1086/323684
关键词:
摘要: Cosmic-ray antiprotons provide an important probe for the study of Galactic dark matter, as they could be produced by neutralino annihilations, primordial black holes evaporations, or other exotic sources. On hand, are anyway standard nuclear reactions cosmic-ray nuclei on interstellar matter (spallations), which known to occur in Galaxy. This process is responsible a background flux that must carefully determined estimate detectability hypothetical signal. In this paper we new evaluation cosmic antiproton fully consistent with framework two-zone diffusion model. We also and conservatively quantify all possible sources uncertainty may affect flux. particular, primary rays now so well measured corresponding error removed. Uncertainties related propagation shown range between 10% 25%, depending part spectrum considered.
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