Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 54: Cosmic Rays III

T 54.5: Vortrag

Mittwoch, 17. März 2021, 17:00–17:15, Td

Time-dependent antiproton to proton ratio with the AMS-02 experiment — •Sichen Li — I. Physikalisches Institut B, RWTH, Aachen, Germany

The Alpha Magnetic Spectrometer (AMS-02) on the International Space Station has been performing precision measurements of cosmic rays in the GeV to TeV energy range since 2011. The study of the time dependence of the antiproton-to-proton ratio (p/p), and its comparison to the electron-to-positron ratio, allows important insights into the physics of the heliospheric modulation of cosmic rays. I will present the analysis method developed to derive the p/p ratio with a time resolution of six months.

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