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
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas · University of Perugia · +51 more institutions
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.
Citation impact
- FWCI
- 177.09
- Percentile
- 100%
- References
- 76
Authors
296- MAM. AguilarCorresponding
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
- DAD. Aisa
University of Perugia, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
- BAB. Alpat
Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
- AAA. Alvino
Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
- GAG. Ambrosi
Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
Topics & keywords
- Rigidity (electromagnetism)
- Cosmic ray
- Physics
- Spectral index
- International Space Station
- Flux (metallurgy)
- Proton
- Nuclear physics
Funding
- NSNational Science Foundation
- UDU.S. Department of Energy
- NANational Aeronautics and Space Administration
- MIMassachusetts Institute of Technology
- TATürkiye Atom Enerjisi Kurumu
- CCERN
- SStrong
- ESEuropean Space Agency
- ANAgence Nationale de la Recherche
- SNSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen ForschungAwards: 40518, 40361
- FDFundação de Amparo à Pesquisa do Estado de São PauloAwards: 2014/50747-8, 2014/, 2014/19149-7
- NNNational Natural Science Foundation of ChinaAwards: 0 and, IN2P3
- ASAcademia Sinica
- CPCentro para el Desarrollo Tecnológico Industrial
- AOAcademy of FinlandAward: 258963
- KNKyungpook National UniversityAwards: NRF-2013-004883, NRF-2009-0080142, NRF-2012-010226
- EWEwha Womans UniversityAward: NRF-2013-004883
- CNCentre National d’Etudes SpatialesAward: IN2P3
- CNConsejo Nacional de Ciencia y Tecnología
- FJForschungszentrum JülichAward: JARA0052
- TTekesAwards: 40361/01, 40518/03
- MOMinistry of Science and TechnologyAward: 103-2682-M-008-002
- CSChina Scholarship Council
- CNCentre National de la Recherche Scientifique
- MSMarshall Space Flight Center
- INInstituto Nazionale di Fisica NucleareAwards: NRF-2012-010226, NRF-2009-0080142, 2013-002-R.0, I/002/13/0
- SDSecretaría de Estado de Investigación, Desarrollo e Innovación
- CDCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas
- INInstitut National de Physique Nucléaire et de Physique des Particules