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

被引：376

作者：

Aguilar, M. ^{[30
]}

Alpat, B. ^{[36
]}

Ambrosi, G. ^{[36
]}

Arruda, L. ^{[28
]}

Attig, N. ^{[23
,24
]}

Aupetit, S. ^{[18
,19
]}

Azzarello, P. ^{[17
]}

Bachlechner, A. ^{[1
,2
,7
,52
]}

Barao, F. ^{[28
]}

Barrau, A. ^{[18
,19
]}

Barrin, L. ^{[16
]}

Bartoloni, A. ^{[42
]}

Basara, L. ^{[40
]}

Basegmez-du Pree, S. ^{[7
]}

Battarbee, M. ^{[50
]}

Battiston, R. ^{[40
,41
]}

Bazo, J. ^{[36
,51
]}

Becker, U. ^{[10
]}

Behlmann, M. ^{[10
]}

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

Berdugo, J. ^{[30
]}

Bertucci, B. ^{[36
,37
]}

Bindi, V. ^{[21
]}

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

de Boer, W. ^{[25
]}

Bollweg, K. ^{[22
]}

Bonnivard, V. ^{[18
,19
]}

Borgia, B. ^{[42
,43
]}

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

Bourquin, M. ^{[17
]}

Bueno, E. F. ^{[44
]}

Burger, J. ^{[10
]}

Cadoux, F. ^{[17
]}

Cai, X. D. ^{[10
]}

Capell, M. ^{[10
]}

Caroff, S. ^{[4
]}

Casaus, J. ^{[30
]}

Castellini, G. ^{[15
]}

Cernuda, I. ^{[30
]}

Cervelli, F. ^{[38
]}

Chae, M. J. ^{[45
]}

Chang, Y. H. ^{[11
]}

Chen, A. I. ^{[10
]}

Chen, G. M. ^{[7
]}

Chen, H. S. ^{[7
]}

Cheng, L. ^{[46
]}

Chou, H. Y. ^{[11
]}

Choumilov, E. ^{[10
]}

Choutko, V. ^{[10
]}

机构：

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

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

[3] Middle E Tech Univ, Dept Phys, TR-06800 Ankara, Turkey

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

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

[6] Chinese Acad Sci, Inst Elect Engn IEE, Beijing 100190, Peoples R China

[7] Chinese Acad Sci, Inst High Energy Phys IHEP, Beijing 100049, Peoples R China

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

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

[10] MIT, Cambridge, MA 02139 USA

[11] Natl Cent Univ NCU, Taoyuan 32054, Taiwan

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

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

[14] Kyungpook Natl Univ, CHEP, Daegu 41566, South Korea

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

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

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

[18] CNRS IN2P3, LPSC, F-38026 Grenoble, France

[19] Univ Grenoble Alpes, F-38026 Grenoble, France

[20] Sun Yat Sen Univ SYSU, Guangzhou 510275, Guangdong, Peoples R China

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

[22] NASA, Johnson Space Ctr JSC, Jacobs Engn & Business Integra, Houston, TX 77058 USA

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

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

[25] KIT, Inst Expt Kernphys, D-76128 Karlsruhe, Germany

[26] IAC, E-38205 San Cristobal la Laguna, Spain

[27] Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain

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

[29] Natl Chung Shan Inst Sci & Technol NCSIST, Taoyuan 32546, Taiwan

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

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

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

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

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

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

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

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

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

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

[44] Univ Sao Paulo, Inst Fis Sao Carlos, CP 369, BR-13560970 Sao Carlos, SP, Brazil

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

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

[47] Natl Cheng Kung Univ, Tainan 70101, Taiwan

[48] Acad Sinica Grid Ctr ASGC, Taipei 11529, Taiwan

[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 | 2016年 / 117卷 / 09期

基金：

美国国家科学基金会; 芬兰科学院; 巴西圣保罗研究基金会; 瑞士国家科学基金会;

关键词：

ABSORPTION CROSS-SECTIONS; GEOMAGNETIC REFERENCE FIELD; DARK-MATTER; RICH DETECTOR; ANTI-PROTONS; AMS-02; TRD; GEV-C; POSITRONS; NUCLEI; CARBON;

D O I：

10.1103/PhysRevLett.117.091103

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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 x 10(5) antiproton events and 2.42 x 10(9) proton events. The fluxes and flux ratios of charged elementary particles in cosmic rays are also presented. In the absolute rigidity range similar to 60 to similar to 500 GV, the antiproton (p) over bar, 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) over bar /p), ((p) over bar /e(+)), and (p/e(+)) flux ratios each reaches a maximum. From similar to 60 to similar to 500 GV, the ((p) over bar /p), ((p) over bar /e(+)), and (p/e(+)) flux ratios show no rigidity dependence. These are new observations of the properties of elementary particles in the cosmos.

引用

页数：10

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