AMS-02 antiprotons and dark matter: Trimmed hints and robust bounds

نویسندگان

چکیده

Based on 4 yr AMS-02 antiproton data, we present bounds the dark matter (DM) annihilation cross section vs. mass for some representative final state channels. We use recent cosmic-ray propagation models, a realistic treatment of experimental and theoretical errors, an updated calculation input spectra based release PYTHIA code. find that reported hints DM signal are statistically insignificant; adequate errors is crucial credible conclusions. Antiproton among most stringent ones, probing thermal up to TeV scale. The dependence upon models halo profile also quantified. A preliminary estimate reaches similar conclusions when applied 7 years dataset, but suggests extra caution as possible future claims excesses.

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ژورنال

عنوان ژورنال: SciPost physics

سال: 2022

ISSN: ['2542-4653']

DOI: https://doi.org/10.21468/scipostphys.12.5.163