Conference Presentation

DESY-2014-02814

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The Cosmic Ray Antiproton Background for AMS

Winkler, M. (Corresponding Author)DESY*

2014

Abstract: The AMS-02 experiment is currently performing a high precision measurement of the cosmic ray antiproton flux. The identification of a possible signal from dark matter requires a thorough understanding of the secondary background arising cosmic ray spallations on the interstellar matter. In this light, we perform a reevaluation of the secondary source term using newly available experimental data from scattering experiments. We systematically account for isospin effects as well as the production of antiprotons via strange hyperon decay. After propagation, we obtain an updated prediction for the secondary antiproton flux which includes a realistic assessment of the particle physics uncertainties down to lowest energies.

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 514 - Theoretical Particle Physics (POF2-514) (POF2-514)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2014

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Database coverage:

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