Electron and Positron Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station

被引：249

作者：

Aguilar, M. ^{[30
]}

Aisa, D. ^{[38
,39
]}

Alvino, A. ^{[38
]}

Ambrosi, G. ^{[38
]}

Andeen, K. ^{[26
]}

Arruda, L. ^{[28
]}

Attig, N. ^{[24
,25
]}

Azzarello, P. ^{[18
,38
]}

Bachlechner, A. ^{[1
,2
]}

Barao, F. ^{[28
]}

Barrau, A. ^{[19
]}

Barrin, L. ^{[17
]}

Bartoloni, A. ^{[44
]}

Basara, L. ^{[4
,5
,42
,43
]}

Battarbee, M. ^{[50
]}

Battiston, R. ^{[42
,43
,51
]}

Bazo, J. ^{[38
]}

Becker, U. ^{[11
]}

Behlmann, M. ^{[11
]}

Beischer, B. ^{[1
,2
]}

Berdugo, J. ^{[30
]}

Bertucci, B. ^{[38
,39
]}

Bigongiari, G. ^{[40
,41
]}

Bindi, V. ^{[21
]}

Bizzaglia, S. ^{[38
]}

Bizzarri, M. ^{[38
,39
]}

Boella, G. ^{[32
,33
]}

de Boer, W. ^{[26
]}

Bollweg, K. ^{[22
,23
]}

Bonnivard, V. ^{[19
]}

Borgia, B. ^{[44
,45
]}

Borsini, S. ^{[38
]}

Boschini, M. J. ^{[32
]}

Bourquin, M. ^{[18
]}

Burger, J. ^{[11
]}

Cadoux, F. ^{[18
]}

Cai, X. D. ^{[11
]}

Capell, M. ^{[11
]}

Caroff, S. ^{[4
,5
]}

Casaus, J. ^{[30
]}

Cascioli, V. ^{[38
]}

Castellini, G. ^{[16
]}

Cernuda, I. ^{[30
]}

Cervelli, F. ^{[40
]}

Chae, M. J. ^{[46
]}

Chang, Y. H. ^{[12
]}

Chen, A. I. ^{[11
]}

Chen, H. ^{[11
]}

Cheng, G. M. ^{[8
]}

Chen, H. S. ^{[8
]}

机构：

[1] Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany

[2] Rhein Westfal TH Aachen, JARA FAME, D-52056 Aachen, Germany

[3] METU, Dept Phys, TR-06800 Ankara, Turkey

[4] CNRS, IN2P3, LAPP, F-74941 Annecy Le Vieux, France

[5] Univ Savoie, F-74941 Annecy Le Vieux, France

[6] Beihang Univ BUAA, Beijing 100191, Peoples R China

[7] Chinese Acad Sci, IEE, Beijing 100080, Peoples R China

[8] Chinese Acad Sci, IHEP, Beijing 100039, Peoples R China

[9] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[10] Univ Bologna, I-40126 Bologna, Italy

[11] MIT, Cambridge, MA 02139 USA

[12] Natl Cent Univ, Taoyuan 32054, Taiwan

[13] Univ Maryland, East West Ctr Space Sci, College Pk, MD 20742 USA

[14] Univ Maryland, IPST, College Pk, MD 20742 USA

[15] Kyungpook Natl Univ, CHEP, Taegu 702701, South Korea

[16] CNR, IROE, I-50125 Florence, Italy

[17] CERN, European Org Nucl Res, CH-1211 Geneva 23, Switzerland

[18] Univ Geneva, DPNC, CH-1211 Geneva 4, Switzerland

[19] Univ Grenoble Alpes, LPSC, CNRS, IN2P3, F-38026 Grenoble, France

[20] SYSU, Guangzhou 510275, Guangdong, Peoples R China

[21] Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA

[22] NASA, Johnson Space Ctr, Houston, TX 77058 USA

[23] Jacobs Sverdrup, Houston, TX 77058 USA

[24] Julich Supercomp Ctr, D-52425 Julich, Germany

[25] Res Ctr Julich, JARA FAME, D-52425 Julich, Germany

[26] Karlsruhe Inst Technol, Inst Expt Kernphys, D-76128 Karlsruhe, Germany

[27] IAC, E-38205 Tenerife, Spain

[28] LIP, Lab Instrumentacao & Fis Expt Particulas, P-1000 Lisbon, Portugal

[29] NCSIST, Taoyuan 325, Taiwan

[30] Ctr Invest Energet Medioambientales & Tecnol CIEM, E-28040 Madrid, Spain

[31] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico

[32] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20126 Milan, Italy

[33] Univ Milano Bicocca, I-20126 Milan, Italy

[34] CNRS, IN2P3, LUPM, F-34095 Montpellier, France

[35] Univ Montpellier 2, F-34095 Montpellier, France

[36] Southeast Univ, SEU, Nanjing 210096, Jiangsu, Peoples R China

[37] Yale Univ, Dept Phys, New Haven, CT 06520 USA

[38] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy

[39] Univ Perugia, I-06100 Perugia, Italy

[40] Ist Nazl Fis Nucl, Sez Pisa, I-56100 Pisa, Italy

[41] Univ Pisa, I-56100 Pisa, Italy

[42] Ist Nazl Fis Nucl, TIFPA, I-38123 Povo, Trento, Italy

[43] Univ Trento, I-38123 Povo, Trento, Italy

[44] Ist Nazl Fis Nucl, Sez Roma 1, I-00185 Rome, Italy

[45] Univ Roma La Sapienza, I-00185 Rome, Italy

[46] Ewha Womans Univ, Dept Phys, Seoul 120750, South Korea

[47] Shandong Univ, SDU, Jinan 250100, Shandong, Peoples R China

[48] Shanghai Jiao Tong Univ, Shanghai 200030, Peoples R China

[49] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[50] Univ Turku, Dept Phys & Astron, Space Res Lab, FI-20014 Turku, Finland

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 12期

基金：

瑞士国家科学基金会; 中国国家自然科学基金;

关键词：

AMS-02; SPECTRA; MODELS; ORIGIN;

D O I：

10.1103/PhysRevLett.113.121102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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 similar to 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.

引用

页数：9

共 30 条

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