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

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/104070

Title:	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
Authors:	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
Contributors:	理學院物理學系
Keywords:	Antiprotons;Astrophysics;Astrophysics and Astronomy;Cosmic rays;Elementary particles;Flux;Fluxes;High Energy Astrophysical Phenomena;Physics;Positrons;Primary cosmic rays;Rigidity
Date:	2016-08-26
Issue Date:	2026-04-23 11:42:54 (UTC+8)
Publisher:	American Physical Society;United States: American Physical Society
Abstract:	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
Appears in Collections:	[Department of Physics] journal & Dissertation

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