Relative Composition and Energy Spectra of Light Nuclei in Cosmic Rays: Results from AMS-01
Measurement of the chemical and isotopic composition of cosmic rays is essential for the precise understanding of their propagation in the galaxy. While the model parameters are mainly determined using the B/C ratio, the study of extended sets of ratios can provide stronger constraints on the propag...
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2013
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| Online Access: | http://hdl.handle.net/1721.1/76316 https://orcid.org/0000-0002-4436-6077 https://orcid.org/0000-0001-7831-7460 https://orcid.org/0000-0002-0450-7007 https://orcid.org/0000-0002-5006-6847 https://orcid.org/0000-0003-3513-8408 https://orcid.org/0000-0002-8667-5660 https://orcid.org/0000-0002-0236-7274 https://orcid.org/0000-0002-7172-9021 |
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| author | Becker, R. Becker, Ulrich J. Berges, P. Burger, Joseph D. Cai, X. D. Capell, Michael H. Dai, T. S. Eppling, Frederic J. Fisher, Peter H. Galaktionov, Y. Klimentov, A. Kounine, Andrei Koutsenko, Vladimir Lebedev, Alexei Luckey, P. David, Jr. Shoutko, V. Siedenburg, T. Steuer, M. Ting, Samuel C. C. Ting, Susan Marks Wu, Xiaohua Sherry Xu, S. Zhou, F. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Becker, R. Becker, Ulrich J. Berges, P. Burger, Joseph D. Cai, X. D. Capell, Michael H. Dai, T. S. Eppling, Frederic J. Fisher, Peter H. Galaktionov, Y. Klimentov, A. Kounine, Andrei Koutsenko, Vladimir Lebedev, Alexei Luckey, P. David, Jr. Shoutko, V. Siedenburg, T. Steuer, M. Ting, Samuel C. C. Ting, Susan Marks Wu, Xiaohua Sherry Xu, S. Zhou, F. |
| author_sort | Becker, R. |
| collection | MIT |
| description | Measurement of the chemical and isotopic composition of cosmic rays is essential for the precise understanding of their propagation in the galaxy. While the model parameters are mainly determined using the B/C ratio, the study of extended sets of ratios can provide stronger constraints on the propagation models. In this paper, the relative abundances of light-nuclei lithium, beryllium, boron, and carbon are presented. The secondary-to-primary ratios Li/C, Be/C, and B/C have been measured in the kinetic energy range 0.35-45 GeV nucleon[superscript –1]. The isotopic ratio [superscript 7]Li/[superscript 6]Li is also determined in the magnetic rigidity interval 2.5-6.3 GV. The secondary-to-secondary ratios Li/Be, Li/B, and Be/B are also reported. These measurements are based on the data collected by the Alpha Magnetic Spectrometer AMS-01 during the STS-91 space shuttle flight in 1998 June. Our experimental results are in substantial agreement with other measurements, where they exist. We describe our light-nuclei data with a diffusive-reacceleration model. A 10%-15% overproduction of Be is found in the model predictions and can be attributed to uncertainties in the production cross-section data. |
| first_indexed | 2024-09-23T12:47:04Z |
| format | Article |
| id | mit-1721.1/76316 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:47:04Z |
| publishDate | 2013 |
| publisher | IOP Publishing |
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| spelling | mit-1721.1/763162022-09-28T09:58:32Z Relative Composition and Energy Spectra of Light Nuclei in Cosmic Rays: Results from AMS-01 Becker, R. Becker, Ulrich J. Berges, P. Burger, Joseph D. Cai, X. D. Capell, Michael H. Dai, T. S. Eppling, Frederic J. Fisher, Peter H. Galaktionov, Y. Klimentov, A. Kounine, Andrei Koutsenko, Vladimir Lebedev, Alexei Luckey, P. David, Jr. Shoutko, V. Siedenburg, T. Steuer, M. Ting, Samuel C. C. Ting, Susan Marks Wu, Xiaohua Sherry Xu, S. Zhou, F. Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Becker, R. Becker, Ulrich J. Berges, P. Burger, Joseph D. Cai, X. D. Capell, Michael H. Dai, T. S. Eppling, Frederic J. Fisher, Peter H. Galaktionov, Y. Klimentov, A. Kounine, Andrei Koutsenko, Vladimir Lebedev, Alexei Luckey, P. David, Jr. Shoutko, V. Siedenburg, T. Steuer, M. Ting, Samuel C. C. Ting, Susan Marks Wu, Xiaohua Sherry Xu, S. Zhou, F. Measurement of the chemical and isotopic composition of cosmic rays is essential for the precise understanding of their propagation in the galaxy. While the model parameters are mainly determined using the B/C ratio, the study of extended sets of ratios can provide stronger constraints on the propagation models. In this paper, the relative abundances of light-nuclei lithium, beryllium, boron, and carbon are presented. The secondary-to-primary ratios Li/C, Be/C, and B/C have been measured in the kinetic energy range 0.35-45 GeV nucleon[superscript –1]. The isotopic ratio [superscript 7]Li/[superscript 6]Li is also determined in the magnetic rigidity interval 2.5-6.3 GV. The secondary-to-secondary ratios Li/Be, Li/B, and Be/B are also reported. These measurements are based on the data collected by the Alpha Magnetic Spectrometer AMS-01 during the STS-91 space shuttle flight in 1998 June. Our experimental results are in substantial agreement with other measurements, where they exist. We describe our light-nuclei data with a diffusive-reacceleration model. A 10%-15% overproduction of Be is found in the model predictions and can be attributed to uncertainties in the production cross-section data. 2013-01-18T20:25:00Z 2013-01-18T20:25:00Z 2010-11 2010-06 Article http://purl.org/eprint/type/JournalArticle 0004-637X 1538-4357 http://hdl.handle.net/1721.1/76316 Aguilar, M. et al. “RELATIVE COMPOSITION AND ENERGY SPECTRA OF LIGHT NUCLEI IN COSMIC RAYS: RESULTS FROM AMS-01.” The Astrophysical Journal 724.1 (2010): 329–340. https://orcid.org/0000-0002-4436-6077 https://orcid.org/0000-0001-7831-7460 https://orcid.org/0000-0002-0450-7007 https://orcid.org/0000-0002-5006-6847 https://orcid.org/0000-0003-3513-8408 https://orcid.org/0000-0002-8667-5660 https://orcid.org/0000-0002-0236-7274 https://orcid.org/0000-0002-7172-9021 en_US http://dx.doi.org/10.1088/0004-637x/724/1/329 Astrophysical Journal Creative Commons Attribution-Noncommercial-Share Alike 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ application/pdf IOP Publishing arXiv |
| spellingShingle | Becker, R. Becker, Ulrich J. Berges, P. Burger, Joseph D. Cai, X. D. Capell, Michael H. Dai, T. S. Eppling, Frederic J. Fisher, Peter H. Galaktionov, Y. Klimentov, A. Kounine, Andrei Koutsenko, Vladimir Lebedev, Alexei Luckey, P. David, Jr. Shoutko, V. Siedenburg, T. Steuer, M. Ting, Samuel C. C. Ting, Susan Marks Wu, Xiaohua Sherry Xu, S. Zhou, F. Relative Composition and Energy Spectra of Light Nuclei in Cosmic Rays: Results from AMS-01 |
| title | Relative Composition and Energy Spectra of Light Nuclei in Cosmic Rays: Results from AMS-01 |
| title_full | Relative Composition and Energy Spectra of Light Nuclei in Cosmic Rays: Results from AMS-01 |
| title_fullStr | Relative Composition and Energy Spectra of Light Nuclei in Cosmic Rays: Results from AMS-01 |
| title_full_unstemmed | Relative Composition and Energy Spectra of Light Nuclei in Cosmic Rays: Results from AMS-01 |
| title_short | Relative Composition and Energy Spectra of Light Nuclei in Cosmic Rays: Results from AMS-01 |
| title_sort | relative composition and energy spectra of light nuclei in cosmic rays results from ams 01 |
| url | http://hdl.handle.net/1721.1/76316 https://orcid.org/0000-0002-4436-6077 https://orcid.org/0000-0001-7831-7460 https://orcid.org/0000-0002-0450-7007 https://orcid.org/0000-0002-5006-6847 https://orcid.org/0000-0003-3513-8408 https://orcid.org/0000-0002-8667-5660 https://orcid.org/0000-0002-0236-7274 https://orcid.org/0000-0002-7172-9021 |
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