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Journal articles
AMS-02 antiprotons, at last! Secondary astrophysical component and immediate implications for Dark Matter
Abstract : Using the updated proton and helium fluxes just released by the AMS-02 experiment we reevaluate the secondary astrophysical antiproton to proton ratio and its uncertainties, and compare it with the ratio preliminarly reported by AMS-02. We find no unambiguous evidence for a significant excess with respect to expectations. Yet, some preference for a flatter energy dependence of the diffusion coefficient starts to emerge. Also, we provide a first assessment of the room left for exotic components such as Galactic Dark Matter annihilation or decay, deriving new stringent constraints.
https://hal-cea.archives-ouvertes.fr/cea-01221167
Contributor : Emmanuelle de Laborderie <>
Submitted on : Tuesday, October 27, 2015 - 3:05:36 PM
Last modification on : Wednesday, April 14, 2021 - 12:12:22 PM
Contributor : Emmanuelle de Laborderie <>
Submitted on : Tuesday, October 27, 2015 - 3:05:36 PM
Last modification on : Wednesday, April 14, 2021 - 12:12:22 PM
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