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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
Resource type
Authors/contributors
- AMS Collaboration (Author)
- Finch, Evan (Author)
Title
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
Abstract
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.
Publication
Physical Review Letters
Publisher
American Physical Society
Date
2015-04-30
Volume
114
Issue
17
Pages
171103
Journal Abbr
Phys. Rev. Lett.
Citation Key
amscollaborationPrecisionMeasurementProton2015
Accessed
11/8/24, 7:54 PM
Library Catalog
APS
Citation
AMS Collaboration, & Finch, E. (2015). 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. Physical Review Letters, 114(17), 171103. https://doi.org/10.1103/PhysRevLett.114.171103
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