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July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

Precision Measurement of the Proton Flux in Primary Cosmic Rays from 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station.

Jul 31, 2015, 2:30 PM
Amazon (World Forum)


World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Oral contribution CR-EX Parallel CR06 Dir p He


Vitaly Choutko (Massachusetts Inst. of Technology (US))


A precision measurement of the proton flux in primary cosmic rays with rigidity 1 GV to 1.8 TV is presented based on 300 million events. The results show that proton flux is smooth and exhibits no sharp structures with rigidity. The detailed variation with rigidity of the flux spectral index is presented for the first time. The spectral index is progressively hardening at high rigidities.
Registration number following "ICRC2015-I/" 80
Collaboration AMS

Primary author

Vitaly Choutko (Massachusetts Inst. of Technology (US))

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