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Bonn 2020 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 61: Astroparticle Physics II

HK 61.5: Vortrag

Freitag, 3. April 2020, 12:15–12:30, J-HS L

Antimatter Cosmic Ray Simulation — •Laura Serksnyte, Laura Fabbietti, Stephan Paul, Thomas Pöschl, and Maximilian Horst — Technical University of Munich (TUM)

The existence of dark matter has been well established by the galaxy rotation curves, the Bullet cluster and many other observational experiments. But no dark matter particle has been detected yet. The indirect dark matter search is looking for the dark matter annihilation and decay signals in cosmic rays. The antimatter cosmic rays have the smallest background for such studies. The antiproton cosmic ray flux simulation requires knowledge of the propagation of cosmic rays in the galaxy and the heliosphere as well as the antiproton production cross sections in the cosmic ray collisions with the interstellar medium. In this talk we show our propagation scheme using GALPROP for the propagation in the galaxy and HelMod for the propagation in the heliosphere. We implemented several options for antiproton production cross sections including parametrizations and event generator, such as GiBUU and EPOS, output. We will show how the antiproton cosmic ray flux depends on the antiproton production cross sections as the final result.

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