AMS-02 antiprotons are consistent with a secondary astrophysical origin

Abstract : The AMS-02 experiment has ushered cosmic-ray physics into precision era. In another paper, we designed an improved method to calibrate propagation models on B/C data. Here we provide a robust prediction of the pbar flux, accounting for several sources of uncertainties and their correlations. Combined with a correlation matrix for the pbar data, we show that the latter are consistent with a secondary origin. This Letter presents key elements relevant to dark matter search in this channel, notably by pointing out the inherent difficulties in achieving predictions at the percent-level precision.
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https://hal.archives-ouvertes.fr/hal-02157654
Contributor : Aigle Clementin <>
Submitted on : Monday, June 17, 2019 - 11:18:06 AM
Last modification on : Wednesday, June 19, 2019 - 1:32:16 PM

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Mathieu Boudaud, Yoann Génolini, Laurent Derome, Julien Lavalle, David Maurin, et al.. AMS-02 antiprotons are consistent with a secondary astrophysical origin. 2019. ⟨hal-02157654⟩

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