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| 題名: | Antiproton Flux, Antiproton-to-Proton Flux Ratio, and Properties of Elementary Particle Fluxes in Primary Cosmic Rays Measured 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: | Antiprotons;Astrophysics;Astrophysics and Astronomy;Cosmic rays;Elementary particles;Flux;Fluxes;High Energy Astrophysical Phenomena;Physics;Positrons;Primary cosmic rays;Rigidity |
| 日期: | 2016-08-26 |
| 上傳時間: | 2026-04-23 11:42:54 (UTC+8) |
| 出版者: | American Physical Society;United States: American Physical Society |
| 摘要: | 摘要： A precision measurement by AMS of the antiproton flux and the antiproton-to-proton flux ratio in primary cosmic rays in the absolute rigidity range from 1 to 450 GV is presented based on 3.49×105 antiproton events and 2.42×109 proton events. The fluxes and flux ratios of charged elementary particles in cosmic rays are also presented. In the absolute rigidity range ∼60 to ∼500 GV, the antiproton p¯, proton p, and positron e+ fluxes are found to have nearly identical rigidity dependence and the electron e− flux exhibits a different rigidity dependence. Below 60 GV, the (p¯/p), (p¯/e+), and (p/e+) flux ratios each reaches a maximum. From ∼60 to ∼500 GV, the (p¯/p), (p¯/e+), and (p/e+) flux ratios show no rigidity dependence. These are new observations of the properties of elementary particles in the cosmos. A precision measurement by AMS of the antiproton flux and the antiproton-to-proton flux ratio in primary cosmic rays in the absolute rigidity range from 1 to 450 GV is presented based on 3.49×105 antiproton events and 2.42×109 proton events. The fluxes and flux ratios of charged elementary particles in cosmic rays are also presented. In the absolute rigidity range ∼60 to ∼500 GV, the antiproton p¯, proton p, and positron e+ fluxes are found to have nearly identical rigidity dependence and the electron e- flux exhibits a different rigidity dependence. Below 60 GV, the (p¯/p), (p¯/e+), and (p/e+) flux ratios each reaches a maximum. From ∼60 to ∼500 GV, the (p¯/p), (p¯/e+), and (p/e+) flux ratios show no rigidity dependence. These are new observations of the properties of elementary particles in the cosmos.
其他題名： Phys Rev Lett
出版者： United States: American Physical Society
出版日期： 2016-08-26
出處： Physical review letters, 2016-08, Vol.117 (9), p.091103, Article 091103
資源來源： APS 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.117.091103
識別號： PMID: 27610839 |
| 顯示於類別: | [物理學系] 期刊論文
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