Biswas, S. ; Ramadurai, S. ; Sreenivasan, N. (1966) Matter traversed by low-energy cosmic-ray nuclei in space Physical Review Letters, 149 (4). pp. 1037-1040. ISSN 0031-9007
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Official URL: http://prola.aps.org/abstract/PR/v149/i4/p1037_1
Related URL: http://dx.doi.org/10.1103/PhysRev.149.1037
Abstract
The amount of matter traversed in space by the primary cosmic-ray nuclei of energy 50-150, 200-500, 500-1000, and >1500 MeV/nucleon are obtained as 5.5±1.4, 9.1±0.9, 5.3±0.5, and 3.1± 0.4 g cm-2 of hydrogen, respectively, using recent measurements of spallation cross sections with proton beams from accelerators and Li/M ratios of cosmic-ray nuclei (where M denotes nuclei with 6<~Z<~9). These results and other evidence seem to suggest the hypothesis of two distinct sources (or propagation paths) of cosmicray nuclei, one responsible for nuclei of energy roughly 50-150 MeV/nucleon and the other of energies greater than this.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 3803 |
| Deposited On: | 18 Oct 2010 09:44 |
| Last Modified: | 27 May 2011 08:42 |
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