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Title: Observation of New Properties of Secondary Cosmic Rays Lithium, Beryllium, and Boron by the Alpha Magnetic Spectrometer on the International Space Station

Journal Article · · Physical Review Letters
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We report on the observation of new properties of secondary cosmic rays Li, Be, and B measured in the rigidity (momentum per unit charge) range 1.9 GV to 3.3 TV with a total of 5.4 × 106 nuclei collected by AMS during the first five years of operation aboard the International Space Station. The Li and B fluxes have an identical rigidity dependence above 7 GV and all three fluxes have an identical rigidity dependence above 30 GV with the Li / Be flux ratio of 2.0 ± 0.1 . The three fluxes deviate from a single power law above 200 GV in an identical way. This behavior of secondary cosmic rays has also been observed in the AMS measurement of primary cosmic rays He, C, and O but the rigidity dependences of primary cosmic rays and of secondary cosmic rays are distinctly different. In particular, above 200 GV, the secondary cosmic rays harden more than the primary cosmic rays.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC)
Contributing Organization:
AMS Collaboration
Grant/Contract Number:
AC02-05CH11231; AC02-06CH11357; HELIO15F-0005; 2014/19149-7; 2015/50378-5; 2016/10222-9; 707543-MAtISSE; 40361/01; 40518/03; 258963; 50OO1403; 2013-002-R.0; 2014-037-R.0; NRF-2009-0080142; NRF-2012-010226; NRF-2013-004883; PTDC/FIS/122567/2010; ESP2015-71662-C2-(1-P/2-P); SEV-2015-0548; , MDM-2015-0509; RyC-2013-14660; 103-2112-M-006-018-MY3; 105-2112-M-001-003; CDA-105-M06; 2017TEAK(CERN)A5.H6.F2-15; 14255202; 1551980; JARA0052; 2014/T72497
OSTI ID:
1416627
Alternate ID(s):
OSTI ID: 1544336
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Vol. 120 Journal Issue: 2; ISSN 0031-9007
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 145 works
Citation information provided by
Web of Science

References (41)

The antimatter spectrometer (AMS-02): A particle physics detector in space
  • Battiston, Roberto
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 588, Issue 1-2 https://doi.org/10.1016/j.nima.2008.01.044
journal April 2008
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 journal April 2015
Recent developments in Geant4
  • Allison, J.; Amako, K.; Apostolakis, J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 835 https://doi.org/10.1016/j.nima.2016.06.125
journal November 2016
Abundances and spectra for cosmic-ray nuclei from lithium to iron for 2 to 150 GeV per nucleon journal December 1978
Charge Composition and Energy Spectra of Cosmic-Ray Nuclei at Energies above 20 GeV Per Nucleon journal July 1974
Astroparticle Physiscs with AMS02
  • Incagli, Marco; Cecchi, Claudia; Ciprini, Stefano
  • SCIENCE WITH THE NEW GENERATION OF HIGH ENERGY GAMMA-RAY EXPERIMENTS: Proceedings of the 7th Workshop on Gamma-Ray Physics in the LHC Era, AIP Conference Proceedings https://doi.org/10.1063/1.3395995
conference January 2010
Energy Spectra of Primary and Secondary Cosmic-Ray Nuclei Measured with Tracer journal November 2011
Energy spectra of cosmic-ray nuclei to above 100 GeV per nucleon journal July 1980
The Origin of Cosmic Rays: Explosions of Massive Stars with Magnetic Winds and Their Supernova Mechanism journal November 2010
The Alpha Magnetic Spectrometer on the International Space Station journal October 2013
Revisiting the hardening of the cosmic ray energy spectrum at TeV energies journal September 2013
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 journal December 2017
Precision Measurement of the Helium Flux in Primary Cosmic Rays of Rigidities 1.9 GV to 3 TV with the Alpha Magnetic Spectrometer on the International Space Station journal November 2015
International Geomagnetic Reference Field: the eleventh generation: IGRF-11 journal October 2010
Relative abundances of secondary and primary cosmic rays at high energies journal January 1990
Measurements of cosmic-ray secondary nuclei at high energies with the first flight of the CREAM balloon-borne experiment journal October 2008
GeV-TeV cosmic-ray spectral anomaly as due to reacceleration by weak shocks in the Galaxy journal July 2014
Energy spectra of cosmic ray nuclei: 4?Z?26 and 0.3?E?2 GeV amu?1 journal March 1977
The Alpha Magnetic Spectrometer on the International Space Station journal August 2012
A database of charged cosmic rays journal September 2014
The internal alignment and position resolution of the AMS-02 silicon tracker determined with cosmic-ray muons
  • Alpat, B.; Ambrosi, G.; Azzarello, Ph.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 613, Issue 2 https://doi.org/10.1016/j.nima.2009.11.065
journal February 2010
Diffusion coefficient and acceleration spectrum from direct measurements of charged cosmic ray nuclei journal September 2005
Upgrade of the Alpha Magnetic Spectrometer (AMS-02) for long term operation on the International Space Station (ISS)
  • Lübelsmeyer, K.; Schultz von Dratzig, A.; Wlochal, M.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 654, Issue 1 https://doi.org/10.1016/j.nima.2011.06.051
journal October 2011
The origin of galactic cosmic rays journal November 2013
The charge composition and energy spectra of cosmic-ray nuclei from 3000 MeV per nucleon to 50 GeV per nucleon journal July 1978
Geant4—a simulation toolkit
  • Agostinelli, S.; Allison, J.; Amako, K.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 506, Issue 3 https://doi.org/10.1016/S0168-9002(03)01368-8
journal July 2003
The Nine Lives of Cosmic Rays in Galaxies journal August 2015
Cosmic-Ray Helium Hardening journal February 2011
Leptons in near earth orbit journal June 2000
International Geomagnetic Reference Field: the 12th generation journal May 2015
Where to stick your data points: The treatment of measurements within wide bins
  • Lafferty, G. D.; Wyatt, T. R.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 355, Issue 2-3 https://doi.org/10.1016/0168-9002(94)01112-5
journal February 1995
Relative Composition and Energy Spectra of Light Nuclei in Cosmic Rays: Results from Ams-01 journal November 2010
Measurement of Boron and Carbon Fluxes in Cosmic rays with the Pamela Experiment journal July 2014
Testing the Origin of High-Energy Cosmic rays journal May 2012
Calibration and performance of the AMS-02 time of flight detector in space
  • Bindi, V.; Chen, G. M.; Chen, H. S.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 743 https://doi.org/10.1016/j.nima.2014.01.002
journal April 2014
Cosmic-Ray Propagation and Interactions in the Galaxy journal November 2007
Precision Measurement of the Boron to Carbon Flux Ratio in Cosmic Rays from 1.9 GV to 2.6 TV with the Alpha Magnetic Spectrometer on the International Space Station journal November 2016
The spatial resolution of the silicon tracker of the Alpha Magnetic Spectrometer
  • Ambrosi, G.; Choutko, V.; Delgado, C.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 869 https://doi.org/10.1016/j.nima.2017.07.014
journal October 2017
Determination of the rigidity scale of the Alpha Magnetic Spectrometer
  • Berdugo, J.; Choutko, V.; Delgado, C.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 869 https://doi.org/10.1016/j.nima.2017.07.012
journal October 2017
The origin of galactic cosmic rays
  • Hörandel, Jörg R.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 588, Issue 1-2 https://doi.org/10.1016/j.nima.2008.01.036
journal April 2008
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 text January 2017

Cited By (20)

Precision Measurement of Cosmic-Ray Nitrogen and its Primary and Secondary Components with the Alpha Magnetic Spectrometer on the International Space Station journal July 2018
Observation of New Properties of Secondary Cosmic Rays Lithium, Beryllium, and Boron by the Alpha Magnetic Spectrometer on the International Space Station text January 2018
Cosmic-ray transport from AMS-02 boron to carbon ratio data: Benchmark models and interpretation journal June 2019
The Self-Control of Cosmic Rays journal June 2019
Entering the cosmic ray precision era journal July 2018
Validation of the Neutron Monitor Yield Function Using Data From AMS‐02 Experiment, 2011–2017 journal April 2019
Update on Galactic Cosmic Ray Integral Flux Measurements in Lunar Orbit With CRaTER journal July 2019
Fitting B/C cosmic-ray data in the AMS-02 era: a cookbook: Model numerical precision, data covariance matrix of errors, cross-section nuisance parameters, and mock data journal July 2019
Effects of re-acceleration and source grammage on secondary cosmic rays spectra journal July 2019
Gamma-rays from reaccelerated particles at supernova remnant shocks journal August 2019
AMS-02 beryllium data and its implication for cosmic ray transport journal January 2020
Properties of Cosmic Helium Isotopes Measured by the Alpha Magnetic Spectrometer text January 2019
Deciphering the Local Interstellar Spectra of Primary Cosmic-Ray Species with HelMod journal May 2018
Studies on Cosmic-Ray Nuclei with Voyager , ACE , and AMS-02. I. Local Interstellar Spectra and Solar Modulation journal August 2018
Revisiting the Spatially Dependent Propagation Model with the Latest Observations of Cosmic-Ray Nuclei journal December 2018
Acceleration of Cosmic Rays in Supernova Shocks: Elemental Selectivity of the Injection Mechanism journal February 2019
Bayesian Analysis of the Hardening in AMS-02 Nuclei Spectra journal March 2019
Cosmic-Ray Propagation in Light of the Recent Observation of Geminga journal July 2019
Modulation of Galactic Cosmic Rays from Helium to Nickel in the Inner Heliosphere journal December 2019
Deciphering the Local Interstellar Spectra of Secondary Nuclei with the Galprop/Helmod Framework and a Hint for Primary Lithium in Cosmic Rays journal February 2020

Figures / Tables (4)