Observation of the Identical Rigidity Dependence of the Primary Cosmic Rays Helium, Carbon and Oxygen fluxes by the Alpha Magnetic Spectrometer on the International Space Station

We report on the observation of new and unexpected properties of primary cosmic rays, He, C, and O, measured in the rigidity (momentum/charge) range 2~GV to $3$~TV with 90 million helium, 8.4 million carbon, and 7.0 million oxygen nuclei collected by the Alpha Magnetic Spectrometer on the Internatio...

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Detalles Bibliográficos
Autor principal: Weng, Zhili
Lenguaje:eng
Publicado: SISSA 2018
Materias:
Astrophysics and Astronomy
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.22323/1.340.0364
http://cds.cern.ch/record/2826920
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author Weng, Zhili
author_facet Weng, Zhili
author_sort Weng, Zhili
collection CERN
description We report on the observation of new and unexpected properties of primary cosmic rays, He, C, and O, measured in the rigidity (momentum/charge) range 2~GV to $3$~TV with 90 million helium, 8.4 million carbon, and 7.0 million oxygen nuclei collected by the Alpha Magnetic Spectrometer on the International Space Station during the first 5 years of operation. Unexpectedly, above 60 GV, these three spectra have identical rigidity dependence. They all deviate from a single power law above 200~GV and harden in an identical way. These are new and unexpected properties of primary cosmic rays and they are challenging current model of CR production, acceleration, and propagation.
id cern-2826920
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2018
publisher SISSA
record_format invenio
spelling cern-28269202022-09-13T20:18:47Zdoi:10.22323/1.340.0364http://cds.cern.ch/record/2826920engWeng, ZhiliObservation of the Identical Rigidity Dependence of the Primary Cosmic Rays Helium, Carbon and Oxygen fluxes by the Alpha Magnetic Spectrometer on the International Space StationAstrophysics and AstronomyParticle Physics - ExperimentWe report on the observation of new and unexpected properties of primary cosmic rays, He, C, and O, measured in the rigidity (momentum/charge) range 2~GV to $3$~TV with 90 million helium, 8.4 million carbon, and 7.0 million oxygen nuclei collected by the Alpha Magnetic Spectrometer on the International Space Station during the first 5 years of operation. Unexpectedly, above 60 GV, these three spectra have identical rigidity dependence. They all deviate from a single power law above 200~GV and harden in an identical way. These are new and unexpected properties of primary cosmic rays and they are challenging current model of CR production, acceleration, and propagation.SISSAoai:cds.cern.ch:28269202018
spellingShingle Astrophysics and Astronomy
Particle Physics - Experiment
Weng, Zhili
Observation of the Identical Rigidity Dependence of the Primary Cosmic Rays Helium, Carbon and Oxygen fluxes by the Alpha Magnetic Spectrometer on the International Space Station
title Observation of the Identical Rigidity Dependence of the Primary Cosmic Rays Helium, Carbon and Oxygen fluxes by the Alpha Magnetic Spectrometer on the International Space Station
title_full Observation of the Identical Rigidity Dependence of the Primary Cosmic Rays Helium, Carbon and Oxygen fluxes by the Alpha Magnetic Spectrometer on the International Space Station
title_fullStr Observation of the Identical Rigidity Dependence of the Primary Cosmic Rays Helium, Carbon and Oxygen fluxes by the Alpha Magnetic Spectrometer on the International Space Station
title_full_unstemmed Observation of the Identical Rigidity Dependence of the Primary Cosmic Rays Helium, Carbon and Oxygen fluxes by the Alpha Magnetic Spectrometer on the International Space Station
title_short Observation of the Identical Rigidity Dependence of the Primary Cosmic Rays Helium, Carbon and Oxygen fluxes by the Alpha Magnetic Spectrometer on the International Space Station
title_sort observation of the identical rigidity dependence of the primary cosmic rays helium, carbon and oxygen fluxes by the alpha magnetic spectrometer on the international space station
topic Astrophysics and Astronomy
Particle Physics - Experiment
url https://dx.doi.org/10.22323/1.340.0364
http://cds.cern.ch/record/2826920
work_keys_str_mv AT wengzhili observationoftheidenticalrigiditydependenceoftheprimarycosmicraysheliumcarbonandoxygenfluxesbythealphamagneticspectrometerontheinternationalspacestation

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