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- Title
Cosmic-ray antiprotons in the AMS-02 era: A sensitive probe of dark matter.
- Authors
Heisig, Jan
- Abstract
Cosmic-ray antiprotons are a powerful tool for astroparticle physics. While the bulk of measured antiprotons is consistent with a secondary origin, the precise data of the AMS-02 experiment provides us with encouraging prospects to search for a subdominant primary component, e.g. from dark matter. In this brief review, we discuss recent limits on heavy dark matter as well as a tentative signal from annihilation of dark matter with a mass ≲ 100 GeV. We emphasize the special role of systematic errors that can affect the signal. In particular, we discuss recent progress in the modeling of secondary production cross-sections and correlated errors in the AMS-02 data, the dominant ones originating from uncertainties in the cross-sections for cosmic-ray absorption in the detector.
- Subjects
DARK matter; ANTIPROTONS; ANNIHILATION reactions; COSMIC rays; PARTICLE interactions
- Publication
Modern Physics Letters A, 2021, Vol 36, Issue 5, pN.PAG
- ISSN
0217-7323
- Publication type
Article
- DOI
10.1142/S0217732321300032