Title of article
A combined interpretation of cosmic ray light nuclei and antiproton measurements
Author/Authors
Di Bernardo، نويسنده , , G. and Evoli، نويسنده , , C. and Gaggero، نويسنده , , D. and Grasso، نويسنده , , D. and Maccione، نويسنده , , L.، نويسنده ,
Pages
3
From page
67
To page
69
Abstract
Recently several experiments improved significantly our knowledge of cosmic ray (CR) spectra at high energy. In particular CREAM measured B/C, C/O and N/O ratios up to ∼ 1 TeV / n and PAMELA observed the antiproton-to-proton ratio up to ∼ 100 GeV with high accuracy. These results permit to put more stringent constraints on the free parameters involved in the diffusion-loss equation that describes the propagation of CRs in the Galaxy. To this purpose, we perform a new statistical analysis comparing updated experimental data with the predictions of an improved version of our numerical code DRAGON. We obtain well defined ranges of values for the diffusion coefficient normalization and index of the power-law dependence on rigidity as well as for the Alfvén velocity.
Keywords
light nuclei , diffusion , Statistical analysis , Antiprotons , Cosmic rays
Journal title
Astroparticle Physics
Record number
2015957
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