Dark matter or correlated errors: Systematics of the AMS-02 antiproton excess

Jan Heisig; Michael Korsmeier; Martin Wolfgang Winkler

doi:10.1103/physrevresearch.2.043017

Dark matter or correlated errors: Systematics of the AMS-02 antiproton excess

Physical Review Research ◽

10.1103/physrevresearch.2.043017 ◽

2020 ◽

Vol 2 (4) ◽

Cited By ~ 1

Author(s):

Jan Heisig ◽

Michael Korsmeier ◽

Martin Wolfgang Winkler

Keyword(s):

Dark Matter ◽

Correlated Errors

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Cosmic-ray antiprotons in the AMS-02 era: A sensitive probe of dark matter

Modern Physics Letters A ◽

10.1142/s0217732321300032 ◽

2020 ◽

pp. 2130003

Author(s):

Jan Heisig

Keyword(s):

Dark Matter ◽

Cross Sections ◽

Production Cross ◽

Cosmic Ray ◽

Systematic Errors ◽

Primary Component ◽

Special Role ◽

Correlated Errors ◽

Precise Data

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 [Formula: see text][Formula: see text]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.

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