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Detection of electrons and positrons with the AMS-02 detector in space

Orateur: 
Manuela Vecchi
Home Institute: 
National Central University, Taiwan
Lieu: 
salle Valentin - 454A
Horaire: 
Wednesday, 20. March 2013 - 14:00
The Alpha Magnetic Spectrometer (AMS-02) is a large acceptance particle physics detector,
operating onboard the International Space Station (ISS) since May 19th 2011. The main goals of AMS-02 are the search for antimatter and dark matter, and the precise measurements of cosmic rays composition and flux.
The study of the  electromagnetic component of the cosmic rays, namely electrons, positrons and photons, is one of the main scientific targets of AMS, due to both the large statistics, as well as the subdetector redundancy and excellent energy resolution. The present seminary will describe the methods to identify electrons and positrons in cosmic rays in GeV to TeV region, and will describe the performances of AMS-02 in this context.