Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Towards Understanding the Origin of Cosmic-Ray Positrons

Full text
Author(s):
Show less -
Aguilar, M. [1] ; Cavasonza, L. Ali [2, 3] ; Ambrosi, G. [4] ; Arruda, L. [5] ; Attig, N. [6, 7] ; Azzarello, P. [8] ; Bachlechner, A. [2, 3] ; Barao, F. [5] ; Barrau, A. [9] ; Barrin, L. [10] ; Bartoloni, A. [11] ; Basara, L. [12] ; Basegmez-du Pree, S. [13] ; Battiston, R. [14, 12, 15] ; Becker, U. [16] ; Behlmann, M. [16] ; Beischer, B. [2, 3] ; Berdugo, J. [1] ; Bertucci, B. [17, 4] ; Bindi, V. [18] ; de Boer, W. [19] ; Bollweg, K. [20, 21] ; Borgia, B. [11, 22] ; Boschini, M. J. [23] ; Bourquin, M. [8] ; Bueno, E. F. [24] ; Burger, J. [16] ; Burger, W. J. [12] ; Cai, X. D. [16] ; Capell, M. [16] ; Caroff, S. [25] ; Casaus, J. [1] ; Castellini, G. [26] ; Cervelli, F. [27] ; Chang, Y. H. [28, 29] ; Chen, G. M. [30] ; Chen, H. S. [30, 31] ; Chen, Y. [8] ; Cheng, L. [32] ; Chou, H. Y. [28, 29] ; Choutko, V. [16] ; Chung, C. H. [2, 3] ; Clark, C. [20, 21] ; Coignet, G. [25] ; Consolandi, C. [18] ; Contin, A. [33, 34] ; Corti, C. [18] ; Crispoltoni, M. [17, 4] ; Cui, Z. [32] ; Dadzie, K. [16] ; Dai, Y. M. [35] ; Datta, A. [18] ; Delgado, C. [1] ; Della Torre, S. [23] ; Demirkoz, M. B. [36] ; Derome, L. [9] ; Di Falco, S. [27] ; Dimiccoli, F. [10, 12] ; Diaz, C. [1] ; von Doetinchem, P. [18] ; Dong, F. [37] ; Donnini, F. [4, 38] ; Duranti, M. [4] ; Egorov, A. [16] ; Eline, A. [16] ; Eronen, T. [39] ; Feng, J. [16] ; Fiandrini, E. [17, 4] ; Fisher, P. [16] ; Formato, V. [4] ; Galaktionov, Y. [16] ; Garcia-Lopez, R. J. [40, 41] ; Gargiulo, C. [10] ; Gast, H. [2, 3] ; Gebauer, I. [19] ; Gervasi, M. [23, 42] ; Giovacchini, F. [1] ; Gomez-Coral, D. M. [43] ; Gong, J. [37] ; Goy, C. [25] ; Grabski, V. [43] ; Grandi, D. [23, 42] ; Graziani, M. [19] ; Guo, K. H. [44] ; Haino, S. [45] ; Han, K. C. [46] ; He, Z. H. [44] ; Heil, M. [16] ; Hsieh, T. H. [16] ; Huang, H. [45, 47] ; Huang, Z. C. [44] ; Incagli, M. [27] ; Jia, Yi [16] ; Jinchi, H. [46] ; Kanishev, K. [12] ; Khiali, B. [4, 38] ; Kirn, Th. [2, 3] ; Konak, C. [36] ; Kounina, O. [16] ; Kounine, A. [16] ; Koutsenko, V. [16] ; Kulemzin, A. [16] ; La Vacca, G. [23, 42] ; Laudi, E. [10] ; Laurenti, G. [33] ; Lazzizzera, I. [12, 15] ; Lebedev, A. [16] ; Lee, H. T. [48] ; Lee, S. C. [45] ; Leluc, C. [8] ; Li, J. Q. [37] ; Li, Q. [37] ; Li, T. X. [44] ; Li, Z. H. [30] ; Light, C. [18] ; Lin, C. H. [45] ; Lippert, T. [6, 7] ; Liu, F. Z. [16] ; Liu, Hu [16, 28, 29] ; Liu, Z. [8] ; Lu, S. Q. [44, 45] ; Lu, Y. S. [30] ; Luebelsmeyer, K. [2, 3] ; Luo, F. [32] ; Luo, J. Z. [37] ; Luo, Xi [18] ; Lyu, S. S. [44] ; Machate, F. [2, 3] ; Mana, C. [1] ; Marin, J. [1] ; Martin, T. [20, 21] ; Martinez, G. [1] ; Masi, N. [33] ; Maurin, D. [9] ; Menchaca-Rocha, A. [43] ; Meng, Q. [37] ; Mo, D. C. [44] ; Molero, M. [1] ; Mott, P. [20, 21] ; Mussolin, L. [17, 4] ; Nelson, T. [18] ; Ni, J. Q. [44] ; Nikonov, N. [2, 3] ; Nozzoli, F. [12] ; Oliva, A. [1] ; Orcinha, M. [5] ; Palermo, M. [18] ; Palmonari, F. [33, 34] ; Paniccia, M. [8] ; Pashnin, A. [16] ; Pauluzzi, M. [17, 4] ; Pensotti, S. [23, 42] ; Perrina, C. [8] ; Phan, H. D. [16] ; Picot-Clemente, N. [49] ; Plyaskin, V. [16] ; Pohl, M. [8] ; Poireau, V. [25] ; Popkow, A. [18] ; Quadrani, L. [33, 34] ; Qi, X. M. [44] ; Qin, X. [16] ; Qu, Z. Y. [45, 50] ; Rancoita, P. G. [23] ; Rapin, D. [8] ; Reina Conde, A. [40, 41] ; Rosier-Lees, S. [25] ; Rozhkov, A. [16] ; Rozza, D. [23, 42] ; Sagdeev, R. [51] ; Solano, C. [16] ; Schael, S. [2, 3] ; Schmidt, S. M. [6, 7] ; von Dratzig, A. Schulz [2, 3] ; Schwering, G. [2, 3] ; Seo, E. S. [49] ; Shan, B. S. [52] ; Shi, J. Y. [37] ; Siedenburg, T. [2, 3] ; Song, J. W. [32] ; Sun, Z. T. [30] ; Tacconi, M. [23, 42] ; Tang, X. W. [30] ; Tang, Z. C. [30] ; Tian, J. [17, 4] ; Ting, Samuel C. C. [10, 16] ; Ting, S. M. [16] ; Tomassetti, N. [17, 4] ; Torsti, J. [39] ; Urban, T. [20, 21] ; Vagelli, V. [17, 4] ; Valente, E. [11, 22] ; Valtonen, E. [39] ; Vazquez Acosta, M. [40, 41] ; Vecchi, M. [13, 24] ; Velasco, M. [1] ; Vialle, J. P. [25] ; Vizan, J. [1] ; Wang, L. Q. [32] ; Wang, N. H. [32] ; Wang, Q. L. [35] ; Wang, X. [16] ; Wang, X. Q. [30, 31] ; Wang, Z. X. [44] ; Wei, J. [8] ; Weng, Z. L. [16] ; Wu, H. [37] ; Xiong, R. Q. [37] ; Xu, W. [16] ; Yan, Q. [16] ; Yang, Y. [53] ; Yi, H. [37] ; Yu, Y. J. [35] ; Yu, Z. Q. [30] ; Zannoni, M. [23, 42] ; Zeissler, S. [19] ; Zhang, C. [30] ; Zhang, F. [30] ; Zhang, J. H. [37] ; Zhang, Z. [16] ; Zhao, F. [30, 31] ; Zheng, Z. M. [52] ; Zhuang, H. L. [30] ; Zhukov, V. [2, 3] ; Zichichi, A. [33, 34] ; Zimmermann, N. [2, 3] ; Zuccon, P. [12, 15] ; Collaboration, AMS
Total Authors: 228
Affiliation:
Show less -
[1] Ctr Invest Energet Med Medioambientales & Tecnol, E-28040 Madrid - Spain
[2] Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen - Germany
[3] Rhein Westfal TH Aachen, JARA FAME, D-52056 Aachen - Germany
[4] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia - Italy
[5] Lab Instrumentacao & Fis Expt Particulas LIP, P-1000 Lisbon - Portugal
[6] Res Ctr Julich, JARA FAME, D-52425 Julich - Germany
[7] Res Ctr Julich, Julich Supercomp Ctr, D-52425 Julich - Germany
[8] Univ Geneva, DPNC, CH-1211 Geneva 4 - Switzerland
[9] Univ Grenoble Alpes, CNRS, Grenoble INP, LPSC, IN2P3, F-38000 Grenoble - France
[10] CERN, European Org Nucl Res, CH-1211 Geneva 23 - Switzerland
[11] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome - Italy
[12] Ist Nazl Fis Nucl, TIFPA, I-38123 Povo, Trento - Italy
[13] Univ Groningen, KVI Ctr Adv Radiat Technol, NL-9700 AB Groningen - Netherlands
[14] ASI, I-00133 Rome - Italy
[15] Univ Trento, I-38123 Povo, Trento - Italy
[16] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 - USA
[17] Univ Perugia, I-06100 Perugia - Italy
[18] Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 - USA
[19] Karlsruhe Inst Technol, Inst Expt Teilchenphys, D-76131 Karlsruhe - Germany
[20] Jacobs Engn, Johnson Space Ctr, Natl Aeronaut & Space Adm, Houston, TX 77058 - USA
[21] Business Integra, Houston, TX 77058 - USA
[22] Univ Roma La Sapienza, I-00185 Rome - Italy
[23] Ist Nazl Fis Nucl, Sez Milano Bicocca, I-20126 Milan - Italy
[24] Univ Sao Paulo, Inst Fis Sao Carlos, CP 369, BR-13560970 Sao Paulo, SP - Brazil
[25] Univ Savoie Mt Blanc, Univ Grenoble Alpes, CNRS, LAPP, IN2P3, F-74000 Annecy - France
[26] CNR, IROE, I-50125 Florence - Italy
[27] Ist Nazl Fis Nucl, Sez Pisa, I-56100 Pisa - Italy
[28] Natl Cent Univ, Phys Dept, Tao Yuan 32054 - Taiwan
[29] Natl Cent Univ, Ctr High Energy & High Field, Tao Yuan 32054 - Taiwan
[30] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049 - Peoples R China
[31] Univ Chinese Acad Sci, Beijing 100049 - Peoples R China
[32] Shandong Univ SDU, Jinan 250100, Shandong - Peoples R China
[33] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna - Italy
[34] Univ Bologna, I-40126 Bologna - Italy
[35] Chinese Acad Sci, Inst Elect Engn, Beijing 100190 - Peoples R China
[36] Middle East Tech Univ, Dept Phys, TR-06800 Ankara - Turkey
[37] Southeast Univ SEU, Nanjing 210096, Jiangsu - Peoples R China
[38] ASI, Space Sci Data Ctr, I-00133 Rome - Italy
[39] Univ Turku, Dept Phys & Astron, Space Res Lab, FI-20014 Turku - Finland
[40] Inst Astrofis Canarias, E-38205 San Cristobal la Laguna - Spain
[41] Univ La Laguna, Dept Astrofis, E-38206 Tenerife - Spain
[42] Univ Milano Bicocca, I-20126 Milan - Italy
[43] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF - Mexico
[44] Sun Yat Sen Univ, Guangzhou 510275, Guangdong - Peoples R China
[45] Acad Sinica, Inst Phys, Taipei 11529 - Taiwan
[46] NCSIST, Longtan 32546, Tao Yuan - Taiwan
[47] Wuhan Univ, Wuhan 430072, Hubei - Peoples R China
[48] Acad Sinica, Grid Ctr, Taipei 11529 - Taiwan
[49] Univ Maryland, IPST, College Pk, MD 20742 - USA
[50] Nankai Univ, Tianjin 300071 - Peoples R China
[51] Univ Maryland, East West Ctr Space Sci, College Pk, MD 20742 - USA
[52] Beihang Univ BUAA, Beijing 100191 - Peoples R China
[53] Natl Cheng Kung Univ, Tainan 70101 - Taiwan
Total Affiliations: 53
Document type: Journal article
Source: Physical Review Letters; v. 122, n. 4 JAN 29 2019.
Web of Science Citations: 17
Abstract

Precision measurements of cosmic ray positrons are presented up to 1 TeV based on 1.9 million positrons collected by the Alpha Magnetic Spectrometer on the International Space Station. The positron flux exhibits complex energy dependence. Its distinctive properties are (a) a significant excess starting from 25.2 +/- 1.8 GeV compared to the lower-energy, power-law trend, (b) a sharp dropoff above 284(-64)(+91) GeV, (c) in the entire energy range the positron flux is well described by the sum of a term associated with the positrons produced in the collision of cosmic rays, which dominates at low energies, and a new source term of positrons, which dominates at high energies, and (d) a finite energy cutoff of the source term of E-s = 810(-180)(+310) GeV is established with a significance of more than 4 sigma. These experimental data on cosmic ray positrons show that, at high energies, they predominantly originate either from dark matter annihilation or from other astrophysical sources. (AU)

FAPESP's process: 14/19149-7 - Indirect dark matter search with the AMS-02 detector
Grantee:Manuela Vecchi
Support type: Research Grants - Young Investigators Grants