Electron and positron 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/987654321/104562

Title:	Electron and positron fluxes in primary cosmic rays measured with the alpha magnetic spectrometer on the international space station
Authors:	張元翰;Beischer, B;Bizzaglia, S;Barrau, A;Shan, Y H;Yu, Y J;Consolandi, C;Nozzoli, F;Schmidt, S M;Battarbee, M;Lee, H T;Lee, S C;Xin, G M;Vecchi, M;Wang, Z X;Bachlechner, A;He, Z H;Chen, H;Berdugo, J;Yan, Q;García, B;Hsieh, T H;Battiston, R;Yi, H;Corti, C;Cui, Z;Luo, J Z;Rancoita, P G;Chou, H Y;Sbarra, C;Heil, M;Tang, X W;Fiasson, A;Grandi, D;Li, H L;Paniccia, M;Choumilov, E;Aisa, D;Spinella, F;Zhuang, H L;Guo, K H;Gillard, W;Ionica, M;von Doetinchem, P;Shi, Y M;Huang, Z C;Xu, W;Bizzarri, M;Lim, S;Du, W J;Wienkenhöver, J;Cheng, G M;Kunz, S;Di Masso, L;Lv, S S;García-López, R;Xu, N S;Zhang, M T;Pereira, R;Zichichi, A;Kim, G N;Mo, D C;Li, Z H;Lin, C H;Marín, J;Quadrani, L;Eronen, T;Sagdeev, R;Rosier-Lees, S;Eline, A;Bartoloni, A;Fan, Y Y;Galaktionov, Y;Martínez, G;Putze, A;Gebauer, I;Li, W;Velasco, M;Li, Q;Lippert, T;Bollweg, K;Schuckardt, D;de Boer, W;Nunes, P;Menchaca-Rocha, A;Müller, M;Jang, W Y;Poireau, V;Lu, Y S;Tao, L;Li, T X;Tang, C P;Rozza, D;Finch, E;Lebedev, A;Schael, S;Barao, F;Zurbach, C;Tang, Z C;Vialle, J P;Zhukov, V
Contributors:	理學院物理學系
Keywords:	Alpha Magnetic Spectrometer;Astrophysics;Astrophysics and Astronomy;Cosmology and Extra-Galactic Astrophysics;Electron density;Experiment;Fluxes;Information dissemination;International Space Station;Origins;Particle Physics;Physics;Positrons;Sciences of the Universe;Spectra
Date:	2014-09-18
Issue Date:	2026-04-23 11:52:41 (UTC+8)
Publisher:	American Physical Society;United States: American Physical Society
Abstract:	摘要： Precision measurements by the Alpha Magnetic Spectrometer on the International Space Station of the primary cosmic-ray electron flux in the range 0.5 to 700 GeV and the positron flux in the range 0.5 to 500 GeV are presented. The electron flux and the positron flux each require a description beyond a single power-law spectrum. Both the electron flux and the positron flux change their behavior at ∼30 GeV but the fluxes are significantly different in their magnitude and energy dependence. Between 20 and 200 GeV the positron spectral index is significantly harder than the electron spectral index. The determination of the differing behavior of the spectral indices versus energy is a new observation and provides important information on the origins of cosmic-ray electrons and positrons. 其他題名： Phys Rev Lett 出版者： United States: American Physical Society 出版日期： 2014-09-19 出處： Physical review letters, 2014-09, Vol.113 (12), p.121102, Article 121102 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.113.121102 識別號： PMID: 25279617
Appears in Collections:	[Department of Physics] journal & Dissertation

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