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Title Properties of Iron Primary Cosmic Rays: Results from the Alpha Magnetic Spectrometer
Author(s)

Aguilar, M (Madrid, CIEMAT) ; Cavasonza, L Ali (Aachen, Tech. Hochsch.) ; Allen, M S (MIT) ; Alpat, B (INFN, Perugia) ; Ambrosi, G (INFN, Perugia) ; Arruda, L (LIP, Lisbon ; Lisbon, CFTP) ; Attig, N (IAS, Julich ; JCHP, Julich) ; Barao, F (LIP, Lisbon ; Lisbon, CFTP) ; Barrin, L (CERN) ; Bartoloni, A (INFN, Rome) ; Başeğmez-du Pree, S (Kapteyn Astron. Inst., Groningen) ; Battiston, R (TIFPA-INFN, Trento ; Trento U.) ; Behlmann, M (MIT) ; Beischer, B (Aachen, Tech. Hochsch.) ; Berdugo, J (Madrid, CIEMAT) ; Bertucci, B (INFN, Perugia ; Perugia U.) ; Bindi, V (Hawaii U.) ; de Boer, W (KIT, Karlsruhe, ETP) ; Bollweg, K (NASA, Houston) ; Borgia, B (INFN, Rome ; U. Rome La Sapienza (main)) ; Boschini, M J (INFN, Milan Bicocca) ; Bourquin, M (Geneva U.) ; Bueno, E F (Kapteyn Astron. Inst., Groningen) ; Burger, J (MIT) ; Burger, W J (TIFPA-INFN, Trento) ; Burmeister, S (Kiel U.) ; Cai, X D (MIT) ; Capell, M (MIT) ; Casaus, J (Madrid, CIEMAT) ; Castellini, G (INOA, Florence) ; Cervelli, F (INFN, Pisa) ; Chang, Y H (Taiwan, Inst. Phys. ; Taiwan, Natl. Central U.) ; Chen, G M (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Chen, G R (Shandong U.) ; Chen, H S (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Chen, Y (Geneva U. ; Shandong U.) ; Cheng, L (Shandong U.) ; Chou, H Y (Taiwan, Natl. Central U.) ; Chouridou, S (Aachen, Tech. Hochsch.) ; Choutko, V (MIT) ; Chung, C H (Aachen, Tech. Hochsch.) ; Clark, C (MIT ; NASA, Houston) ; Coignet, G (Annecy, LAPP) ; Consolandi, C (Hawaii U.) ; Contin, A (INFN, Bologna ; Bologna U.) ; Corti, C (Hawaii U.) ; Cui, Z (Shandong U. ; Shandong U.) ; Dadzie, K (MIT) ; Delgado, C (Madrid, CIEMAT) ; Della Torre, S (INFN, Milan Bicocca) ; Demirköz, M B (Middle East Tech. U., Ankara) ; Derome, L (LPSC, Grenoble) ; Di Falco, S (INFN, Pisa) ; Di Felice, V (INFN, Rome2) ; Díaz, C (Madrid, CIEMAT) ; Dimiccoli, F (TIFPA-INFN, Trento) ; von Doetinchem, P (Hawaii U.) ; Dong, F (Southeast U., Nanjing) ; Donnini, F (INFN, Rome2) ; Duranti, M (INFN, Perugia) ; Egorov, A (MIT) ; Eline, A (MIT) ; Feng, J (MIT) ; Fiandrini, E (INFN, Perugia ; Perugia U.) ; Fisher, P (MIT) ; Formato, V (INFN, Rome2) ; Freeman, C (Hawaii U.) ; Galaktionov, Y (MIT) ; Gámez, C (Madrid, CIEMAT) ; García-López, R J (Laguna U., Tenerife ; IAC, La Laguna) ; Gargiulo, C (CERN) ; Gast, H (Aachen, Tech. Hochsch.) ; Gervasi, M (INFN, Milan Bicocca ; Milan Bicocca U.) ; Giovacchini, F (Madrid, CIEMAT) ; Gómez-Coral, D M (Hawaii U.) ; Gong, J (Southeast U., Nanjing) ; Goy, C (Annecy, LAPP) ; Grabski, V (Mexico U.) ; Grandi, D (INFN, Milan Bicocca ; Milan Bicocca U.) ; Graziani, M (INFN, Perugia ; Perugia U.) ; Haino, S (Taiwan, Inst. Phys.) ; Han, K C (CSIST, Taiwan) ; Hashmani, R K (Middle East Tech. U., Ankara) ; He, Z H (SYSU, Guangzhou) ; Heber, B (Kiel U.) ; Hsieh, T H (MIT) ; Hu, J Y (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Incagli, M (INFN, Pisa) ; Jang, W Y (CHEP, Taegu) ; Jia, Yi (MIT) ; Jinchi, H (CSIST, Taiwan) ; Kanishev, K (TIFPA-INFN, Trento) ; Khiali, B (INFN, Rome2) ; Kim, G N (CHEP, Taegu) ; Kirn, Th (Aachen, Tech. Hochsch.) ; Konyushikhin, M (MIT) ; Kounina, O (MIT) ; Kounine, A (MIT) ; Koutsenko, V (MIT) ; Kuhlman, A (Hawaii U.) ; Kulemzin, A (MIT) ; La Vacca, G (INFN, Milan Bicocca ; Milan Bicocca U.) ; Laudi, E (CERN) ; Laurenti, G (INFN, Bologna) ; Lazzizzera, I (TIFPA-INFN, Trento ; Trento U.) ; Lebedev, A (MIT) ; Lee, H T (Taipei, Computing Ctr.) ; Lee, S C (Taiwan, Inst. Phys.) ; Li, J Q (Southeast U., Nanjing) ; Li, M (Aachen, Tech. Hochsch.) ; Li, Q (Southeast U., Nanjing) ; Li, S (Aachen, Tech. Hochsch.) ; Li, J H (Shandong U.) ; Li, Z H (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Liang, J (Shandong U.) ; Light, C (Hawaii U.) ; Lin, C H (Taiwan, Inst. Phys.) ; Lippert, T (IAS, Julich ; JCHP, Julich) ; Liu, J H (Inst. Electr. Engin., Beijing) ; Liu, Z (Geneva U.) ; Lu, S Q (Taiwan, Inst. Phys.) ; Lu, Y S (Beijing, Inst. High Energy Phys.) ; Luebelsmeyer, K (Aachen, Tech. Hochsch.) ; Luo, J Z (Southeast U., Nanjing) ; Luo, Xi (Shandong U.) ; Lyu, S S (SYSU, Guangzhou) ; Machate, F (Aachen, Tech. Hochsch.) ; Mañá, C (Madrid, CIEMAT) ; Marín, J (Madrid, CIEMAT) ; Marquardt, J (Kiel U.) ; Martin, T (MIT ; NASA, Houston) ; Martínez, G (Madrid, CIEMAT) ; Masi, N (INFN, Bologna ; Bologna U.) ; Maurin, D (LPSC, Grenoble) ; Menchaca-Rocha, A (Mexico U.) ; Meng, Q (Southeast U., Nanjing) ; Mikhailov, V V (Moscow Phys. Eng. Inst.) ; Mo, D C (SYSU, Guangzhou) ; Molero, M (Madrid, CIEMAT) ; Mott, P (MIT ; NASA, Houston) ; Mussolin, L (INFN, Perugia ; Perugia U.) ; Negrete, J (Hawaii U.) ; Nikonov, N (Aachen, Tech. Hochsch.) ; Nozzoli, F (TIFPA-INFN, Trento) ; Oliva, A (INFN, Bologna) ; Orcinha, M (LIP, Lisbon ; Lisbon, CFTP) ; Palermo, M (Hawaii U.) ; Palmonari, F (INFN, Bologna ; Bologna U.) ; Paniccia, M (Geneva U.) ; Pashnin, A (MIT) ; Pauluzzi, M (INFN, Perugia ; Perugia U.) ; Pensotti, S (INFN, Milan Bicocca ; Milan Bicocca U.) ; Phan, H D (MIT) ; Piandani, R (KIT, Karlsruhe, ETP) ; Plyaskin, V (MIT) ; Poluianov, S (Oulu U.) ; Qin, X (MIT) ; Qu, Z Y (Taiwan, Inst. Phys.) ; Quadrani, L (INFN, Bologna ; Bologna U.) ; Rancoita, P G (INFN, Milan Bicocca) ; Rapin, D (Geneva U.) ; Conde, A Reina (Laguna U., Tenerife ; IAC, La Laguna) ; Robyn, E (Geneva U.) ; Rosier-Lees, S (Annecy, LAPP) ; Rozhkov, A (MIT) ; Rozza, D (INFN, Milan Bicocca ; Milan Bicocca U.) ; Sagdeev, R (Maryland U.) ; Schael, S (Aachen, Tech. Hochsch.) ; von Dratzig, A Schulz (Aachen, Tech. Hochsch.) ; Schwering, G (Aachen, Tech. Hochsch.) ; Seo, E S (Maryland U.) ; Shakfa, Z (Middle East Tech. U., Ankara) ; Shan, B S (Beihang U.) ; Siedenburg, T (Aachen, Tech. Hochsch.) ; Solano, C (MIT) ; Song, J W (Shandong U.) ; Song, X J (Shandong U.) ; Sonnabend, R (Aachen, Tech. Hochsch.) ; Strigari, L (INFN, Rome) ; Su, T (Shandong U.) ; Sun, Q (Shandong U.) ; Sun, Z T (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Tacconi, M (INFN, Milan Bicocca ; Milan Bicocca U.) ; Tang, X W (Beijing, Inst. High Energy Phys.) ; Tang, Z C (Beijing, Inst. High Energy Phys.) ; Tian, J (INFN, Perugia ; Perugia U.) ; Ting, Samuel C C (MIT ; CERN) ; Ting, S M (MIT) ; Tomassetti, N (INFN, Perugia ; Perugia U.) ; Torsti, J (Turku U.) ; Tüysüz, C (Middle East Tech. U., Ankara) ; Urban, T (MIT ; NASA, Houston) ; Usoskin, I (Oulu U.) ; Vagelli, V (ASI, Rome ; INFN, Perugia) ; Vainio, R (Turku U.) ; Valencia-Otero, M (Taiwan, Natl. Central U.) ; Valente, E (INFN, Rome ; U. Rome La Sapienza (main)) ; Valtonen, E (Turku U.) ; Vázquez Acosta, M (Laguna U., Tenerife ; IAC, La Laguna) ; Vecchi, M (Kapteyn Astron. Inst., Groningen) ; Velasco, M (Madrid, CIEMAT) ; Vialle, J P (Annecy, LAPP) ; Wang, C X (Shandong U.) ; Wang, L (Inst. Electr. Engin., Beijing) ; Wang, L Q (Shandong U.) ; Wang, N H (Shandong U.) ; Wang, Q L (Inst. Electr. Engin., Beijing) ; Wang, S (Hawaii U.) ; Wang, X (MIT) ; Wang, Yu (Shandong U.) ; Wang, Z M (Shandong U.) ; Wei, J (Geneva U.) ; Weng, Z L (MIT) ; Wu, H (Southeast U., Nanjing) ; Xiong, R Q (Southeast U., Nanjing) ; Xu, W (Shandong U. ; Shandong U.) ; Yan, Q (MIT) ; Yang, Y (Taiwan, Natl. Cheng Kung U.) ; Yashin, I I (Moscow Phys. Eng. Inst.) ; Yi, H (Southeast U., Nanjing) ; Yu, Y M (SYSU, Guangzhou) ; Yu, Z Q (Beijing, Inst. High Energy Phys.) ; Zannoni, M (INFN, Milan Bicocca ; Milan Bicocca U.) ; Zhang, C (Beijing, Inst. High Energy Phys.) ; Zhang, F (Beijing, Inst. High Energy Phys.) ; Zhang, F Z (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Zhang, J H (Southeast U., Nanjing) ; Zhang, Z (MIT) ; Zhao, F (Beijing, Inst. High Energy Phys. ; Beijing, GUCAS) ; Zheng, C (Shandong U.) ; Zheng, Z M (Beihang U.) ; Zhuang, H L (Beijing, Inst. High Energy Phys.) ; Zhukov, V (Aachen, Tech. Hochsch.) ; Zichichi, A (INFN, Bologna ; Bologna U.) ; Zimmermann, N (Aachen, Tech. Hochsch.) ; Zuccon, P (TIFPA-INFN, Trento ; Trento U.)

Publication 2021
Number of pages 8
In: Phys. Rev. Lett. 126 (2021) 041104
DOI 10.1103/PhysRevLett.126.041104
Subject category Astrophysics and Astronomy ; Detectors and Experimental Techniques
Accelerator/Facility, Experiment AMS
Abstract We report the observation of new properties of primary iron (Fe) cosmic rays in the rigidity range 2.65 GV to 3.0 TV with 0.62×10$^6$ iron nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. Above 80.5 GV the rigidity dependence of the cosmic ray Fe flux is identical to the rigidity dependence of the primary cosmic ray He, C, and O fluxes, with the Fe/O flux ratio being constant at 0.155±0.006. This shows that unexpectedly Fe and He, C, and O belong to the same class of primary cosmic rays which is different from the primary cosmic rays Ne, Mg, and Si class.
Copyright/License © 2021-2024 authors (License: CC-BY-4.0)

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 记录创建於2021-02-09,最後更新在2021-02-09


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