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T: Fachverband Teilchenphysik

T 101: Cosmic Ray 6

T 101.4: Talk

Thursday, March 24, 2022, 17:00–17:15, T-H33

Search for heavy antimatter with AMS — •Robin Sonnabend — 1. Physikalisches Institut B, RWTH Aachen

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 search for heavy antimatter (Z>=2) requires advanced methods for the suppression of instrumental background which arises from the mis-reconstruction of the charge sign. I will present a set of dedicated multivariate estimators for different event topologies designed to achieve this goal.