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Observation of the Identical Rigidity Dependence of He, C, and O Cosmic Rays at High Rigidities by the Alpha Magnetic Spectrometer on the International Space Station

  • (AMS Collaboration)
  • CIEMAT
  • RWTH Aachen University
  • National Institute for Nuclear Physics
  • Laboratório de Instrumentação e Física Experimental de Partículas
  • Jülich Research Centre
  • Université Grenoble Alpes
  • University of Geneva
  • CERN
  • University of Trento
  • CAS - Institute of High Energy Physics
  • University of Turku
  • ASI
  • Massachusetts Institute of Technology
  • University of Perugia
  • Karlsruhe Institute of Technology
  • University of Hawai'i at Mānoa
  • NASA Johnson Space Center
  • University of Rome La Sapienza
  • Universidade de São Paulo
  • Université Savoie Mont Blanc
  • National Research Council of Italy
  • Ewha Womans University
  • National Central University
  • University of Chinese Academy of Sciences
  • Shandong University

Research output: Contribution to journalArticlepeer-review

331 Scopus citations

Abstract

We report the observation of new properties of primary cosmic rays He, C, and O measured in the rigidity (momentum/charge) range 2 GV to 3 TV with 90×106 helium, 8.4×106 carbon, and 7.0×106 oxygen nuclei collected by the Alpha Magnetic Spectrometer (AMS) during the first five years of operation. 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.

Original languageEnglish
Article number251101
JournalPhysical Review Letters
Volume119
Issue number25
DOIs
StatePublished - 18 Dec 2017

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