Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 54: Cosmic Rays III

T 54.6: Vortrag

Mittwoch, 17. März 2021, 17:15–17:30, Td

Analysis of the isotopic composition of cosmic-ray Lithium with AMS-02 — •Manbing Li — I. Physikalisches Institut B RWTH Aachen, Sommerfeldstraße 14

AMS-02 is a multi-purpose magnetic spectrometer designed for precise measurements of cosmic-ray fluxes above Earths atmosphere. The isotopic composition of cosmic-ray nuclei is of great interest since it directly reflects processes related to cosmic-ray propagation through the Galaxy. In more than nine years of data taking, AMS-02 has collected the largest available dataset on the fluxes of cosmic-ray nuclei. The Ring Imaging Cherenkov detector of AMS-02 provides particle velocity measurements with a resolution better than 0.1%. Together with the rigidity measurement provided by the silicon tracker, the mass of a particle can be derived. I will present an analysis method based on template fits to determine the lithium isotope ratio.

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