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| 題名: | 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 |
| 作者: | 張元翰;Vitale, V;Nelson, T;Seo, E S;Chou, H Y;Tang, Z C;Wei, C C;Beischer, B;Wang, Z X;Zhang, S D;Barrau, A;Shi, J Y;Consolandi, C;Nozzoli, F;Battarbee, M;Boschini, M J;Egorov, A;Vecchi, M;Bueno, E F;Bachlechner, A;Berdugo, J;Yan, Q;García, B;Battiston, R;Yi, H;Zhang, C;Corti, C;Cui, Z;Li, T X;Heil, M;Gargiulo, C;Hsieh, T H;Dong, F;Grandi, D;Paniccia, M;Choumilov, E;Qin, X;Wang, L Q;Ionica, M;von Doetinchem, P;Li, Z Y;Xu, W;Lim, S;Wienkenhöver, J;Kim, G N;Wang, N H;Crispoltoni, M;Demirköz, M B;Pereira, R;Willenbrock, M;Zichichi, A;Chae, M J;Zhu, Z Q;Marín, J;Quadrani, L;Eronen, T;Sagdeev, R;Rosier-Lees, S;Eline, A;Bartoloni, A;Krafczyk, M S;Lin, C H;Vitillo, S;Galaktionov, Y;Martínez, G;Putze, A;Gebauer, I;Li, W;Velasco, M;Li, Q;Lippert, T;Bollweg, K;de Boer, W;Nunes, P;Wu, X;Menchaca-Rocha, A;Poireau, V;Tao, L;Alpat, B;Rozza, D;Finch, E;Lebedev, A;Schael, S;Barao, F;Lee, S C;Zhukov, V;Chen, A I;García-López, R J;Qi, X M;Guo, K H;Pizzolotto, C;Tescaro, D;Gast, H;Luo, J Z;Lv, S S;Maurin, D;Formato, V;Mo, D C;Ambrosi, G;Donnini, F;Fisher, P |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | Astrophysics;Astrophysics and Astronomy;Asymptotic properties;Boron;Carbon;Cosmic rays;Deltas;Flux;High Energy Astrophysical Phenomena;Mathematical models;Physics;Rigidity |
| 日期: | 2016-11-28 |
| 上傳時間: | 2026-04-23 12:40:25 (UTC+8) |
| 出版者: | American Physical Society;United States: American Physical Society |
| 摘要: | 摘要： Knowledge of the rigidity dependence of the boron to carbon flux ratio (B/C) is important in understanding the propagation of cosmic rays. The precise measurement of the B/C ratio from 1.9 GV to 2.6 TV, based on 2.3 million boron and 8.3 million carbon nuclei collected by AMS during the first 5 years of operation, is presented. The detailed variation with rigidity of the B/C spectral index is reported for the first time. The B/C ratio does not show any significant structures in contrast to many cosmic ray models that require such structures at high rigidities. Remarkably, above 65 GV, the B/C ratio is well described by a single power law RΔ with index Δ=-0.333±0.014(fit)±0.005(syst), in good agreement with the Kolmogorov theory of turbulence which predicts Δ=-1/3 asymptotically.
其他題名： Phys Rev Lett
出版者： United States: American Physical Society
出版日期： 2016-12-02
出處： Physical review letters, 2016-12, Vol.117 (23), p.231102, Article 231102
資源來源： American Physical Society Journals
版權： licence_http://creativecommons.org/publicdomain/zero
識別號： ISSN: 0031-9007
識別號： ISSN: 1079-7114
識別號： ISSN: 1092-0145
識別號： EISSN: 1079-7114
識別號： DOI: 10.1103/PhysRevLett.117.231102
識別號： PMID: 27982618 |
| 顯示於類別: | [物理學系] 期刊論文
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