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


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Aguilar M., Aisa D., Alpat B., Alvino A., Ambrosi G., Andeen K., ...Daha Fazla

PHYSICAL REVIEW LETTERS, cilt.114, sa.17, 2015 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 114 Konu: 17
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1103/physrevlett.114.171103
  • Dergi Adı: PHYSICAL REVIEW LETTERS

Özet

A precise measurement of the proton flux in primary cosmic rays with rigidity (momentum/charge) from 1 GV to 1.8 TV is presented based on 300 million events. Knowledge of the rigidity dependence of the proton flux is important in understanding the origin, acceleration, and propagation of cosmic rays. We present the detailed variation with rigidity of the flux spectral index for the first time. The spectral index progressively hardens at high rigidities.