ICRC2015

Precision Measurement of Lithium Flux in Cosmic Rays with the Alpha Magnetic Spectrometer on the International Space Station

1 Aug 2015, 11:30

15m

World Forum Theatre (World Forum)

Oral contribution CR-EX Parallel CR08 Dir light

Speaker

Laurent Yves Marie Derome (Centre National de la Recherche Scientifique (FR))

Description

Lithium nuclei in cosmic rays are produced by the spallation of heavier cosmic rays on the interstellar medium. Thus, the abundance of Lithium constitutes a very sensitive observable for the modeling of cosmic rays propagation in the Galaxy. A precision measurement of the Lithium flux with rigidities from 2 GV to 3 TV by AMS, based on 1.6 million events, is presented for the first time. The variation of the flux spectral index with rigidity is also presented.