CERN Accelerating science

Article
Title Properties of Cosmic Deuterons Measured by the Alpha Magnetic Spectrometer
Author(s)

Aguilar, M (Madrid, CIEMAT) ; Alpat, B (INFN, Perugia ; Perugia U.) ; Ambrosi, G (INFN, Perugia ; Perugia U.) ; Anderson, H (MIT) ; Arruda, L (LIP, Lisbon) ; Attig, N (IAS, Julich) ; Bagwell, C (MIT) ; Barao, F (LIP, Lisbon) ; Barbanera, M (INFN, Perugia ; Perugia U.) ; Barrin, L (CERN) ; Bartoloni, A (INFN, Rome) ; Battiston, R (TIFPA-INFN, Trento ; Trento U.) ; Bayyari, A (Hawaii U.) ; Belyaev, N (MIT) ; Bertucci, B (INFN, Perugia ; Perugia U.) ; Bindi, V (Hawaii U.) ; Bollweg, K (NASA, Houston) ; Bolster, J (MIT) ; Borchiellini, M (Kapteyn Astron. Inst., Groningen) ; Borgia, B (INFN, Rome ; Rome U.) ; Boschini, M J (Milan Bicocca U.) ; Bourquin, M (Geneva U.) ; Brugnoni, C (INFN, Perugia ; Perugia U.) ; Burger, J (MIT) ; Burger, W J (TIFPA-INFN, Trento) ; Cai, X D (MIT) ; Capell, M (MIT) ; Casaus, J (Madrid, CIEMAT) ; Castellini, G (INFN, Bologna) ; Cervelli, F (Pisa U. ; INFN, Pisa) ; Chang, Y H (Taiwan, Inst. Phys.) ; Chen, G M (Beijing, GUCAS ; Beijing, Inst. High Energy Phys.) ; Chen, G R (Shandong U.) ; Chen, H (Zhejiang U.) ; Chen, H S (Beijing, GUCAS ; Beijing, Inst. High Energy Phys.) ; Chen, Y (Shandong U.) ; Cheng, L (Shandong U.) ; Chou, H Y (Taiwan, Inst. Phys.) ; Chouridou, S (RWTH Aachen U.) ; Choutko, V (MIT) ; Chung, C H (RWTH Aachen U.) ; Clark, C (NASA, Houston ; MIT) ; Coignet, G (Annecy, LAPP) ; Consolandi, C (Hawaii U.) ; Contin, A (INFN, Bologna) ; Corti, C (Hawaii U.) ; Cui, Z (Shandong U.) ; Dadzie, K (MIT) ; D'Angelo, F (INFN, Bologna) ; Dass, A (TIFPA-INFN, Trento ; Trento U.) ; Delgado, C (Madrid, CIEMAT) ; Della Torre, S (Milan Bicocca U.) ; Demirköz, M B (Middle East Tech. U., Ankara) ; Derome, L (LPSC, Grenoble) ; Di Falco, S (Pisa U. ; 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, Perugia ; Perugia U.) ; Duranti, M (INFN, Perugia ; Perugia U.) ; Egorov, A (MIT) ; Eline, A (MIT) ; Faldi, F (INFN, Perugia ; Perugia U.) ; Fehr, D (RWTH Aachen U.) ; Feng, J (SYSU, Guangzhou) ; Fiandrini, E (INFN, Perugia ; Perugia U.) ; Fisher, P (MIT) ; Formato, V (INFN, Rome2) ; Gámez, C (Madrid, CIEMAT) ; García-López, R J (IAC, La Laguna) ; Gargiulo, C (CERN) ; Gast, H (RWTH Aachen U.) ; Gervasi, M (INFN, Milan Bicocca ; Milan Bicocca U.) ; Giovacchini, F (Madrid, CIEMAT) ; Gómez-Coral, D M (Mexico U.) ; Gong, J (Southeast U., Nanjing) ; Grandi, D (INFN, Milan Bicocca ; Milan Bicocca U.) ; Graziani, M (INFN, Perugia ; Perugia U.) ; Guracho, A N (INFN, Rome) ; Haino, S (Taiwan, Inst. Phys.) ; Han, K C (Taiwan, Natl. Central U.) ; 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, GUCAS ; Beijing, Inst. High Energy Phys.) ; Huang, B W (Zhejiang U.) ; Ionica, M (INFN, Perugia ; Perugia U.) ; Incagli, M (Pisa U. ; INFN, Pisa) ; Jia, Yi (MIT) ; Jinchi, H (Taiwan, Natl. Central U.) ; Karagöz, G (Middle East Tech. U., Ankara) ; Khan, S (Geneva U.) ; Khiali, B (INFN, Rome2) ; Kirn, Th (RWTH Aachen U.) ; Klipfel, A P (MIT) ; Kounina, O (MIT) ; Kounine, A (MIT) ; Koutsenko, V (MIT) ; Krasnopevtsev, D (MIT) ; Kuhlman, A (Hawaii U.) ; Kulemzin, A (MIT) ; La Vacca, G (INFN, Milan Bicocca ; Milan Bicocca U.) ; Laudi, E (CERN) ; Laurenti, G (INFN, Bologna) ; LaVecchia, G (MIT) ; Lazzizzera, I (TIFPA-INFN, Trento ; Trento U.) ; Lee, H T (Taiwan, Inst. Phys.) ; Lee, S C (Taiwan, Inst. Phys.) ; Li, H L (Shandong U.) ; Li, J Q (Southeast U., Nanjing) ; Li, M (Geneva U.) ; Li, M (Shandong U.) ; Li, Q (Southeast U., Nanjing) ; Li, Q (Shandong U.) ; Li, Q Y (Shandong U.) ; Li, S (RWTH Aachen U.) ; Li, S L (Beijing, GUCAS ; Beijing, Inst. High Energy Phys.) ; Li, J H (Shandong U.) ; Li, Z H (Beijing, GUCAS ; Beijing, Inst. High Energy Phys.) ; Liang, M J (Beijing, GUCAS ; Beijing, Inst. High Energy Phys.) ; Liao, P (Shandong U.) ; Lin, C H (Taiwan, Inst. Phys.) ; Lippert, T (IAS, Julich) ; Liu, J H (Beijing, Inst. Theor. Phys.) ; Liu, P C (Shandong U.) ; Lu, S Q (Taiwan, Inst. Phys.) ; Lu, Y S (Beijing, Inst. High Energy Phys.) ; Luebelsmeyer, K (RWTH Aachen U.) ; Luo, J Z (Southeast U., Nanjing) ; Luo, Q (SYSU, Guangzhou) ; Luo, S D (Zhejiang U.) ; Luo, Xi (Shandong U.) ; Mañá, C (Madrid, CIEMAT) ; Marín, J (Madrid, CIEMAT) ; Marquardt, J (Kiel U.) ; Martínez, G (Madrid, CIEMAT) ; Masi, N (INFN, Bologna) ; Maurin, D (LPSC, Grenoble) ; Medvedeva, T (MIT) ; Menchaca-Rocha, A (Mexico U.) ; Meng, Q (Southeast U., Nanjing) ; Mikhailov, V V (Shandong U.) ; Molero, M (IAC, La Laguna) ; Mott, P (NASA, Houston ; MIT) ; Mussolin, L (INFN, Perugia ; Perugia U.) ; Jozani, Y Najafi (RWTH Aachen U.) ; Nicolaidis, R (TIFPA-INFN, Trento ; Trento U.) ; Nikonov, N (Hawaii U.) ; Nozzoli, F (TIFPA-INFN, Trento) ; Ocampo-Peleteiro, J (Madrid, CIEMAT) ; Oliva, A (INFN, Bologna) ; Orcinha, M (INFN, Perugia ; Perugia U.) ; Palmonari, F (INFN, Bologna) ; Paniccia, M (Geneva U.) ; Pashnin, A (MIT) ; Pauluzzi, M (INFN, Perugia ; Perugia U.) ; Pensotti, S (INFN, Milan Bicocca ; Milan Bicocca U.) ; Pietzcker, P (Kiel U.) ; Plyaskin, V (MIT) ; Poluianov, S (Oulu U.) ; Pridöhl, D (RWTH Aachen U.) ; Qu, Z Y (Shandong U.) ; Quadrani, L (INFN, Bologna) ; Rancoita, P G (Milan Bicocca U.) ; Rapin, D (Geneva U.) ; Conde, A Reina (INFN, Bologna) ; Robyn, E (Geneva U.) ; Rodríguez-García, I (Madrid, CIEMAT) ; Romaneehsen, L (Kiel U.) ; Rossi, F (TIFPA-INFN, Trento ; Trento U.) ; Rozhkov, A (MIT) ; Rozza, D (Milan Bicocca U.) ; Sagdeev, R (Maryland U.) ; Savin, E (INFN, Bologna) ; Schael, S (RWTH Aachen U.) ; Schultz von Dratzig, A (RWTH Aachen U.) ; Schwering, G (RWTH Aachen U.) ; Seo, E S (Maryland U.) ; Shan, B S (BeiHang U.) ; Shukla, A (Hawaii U.) ; Siedenburg, T (RWTH Aachen U.) ; Silvestre, G (INFN, Perugia ; Perugia U.) ; Song, J W (Shandong U.) ; Song, X J (Shandong U.) ; Sonnabend, R (RWTH Aachen U.) ; Strigari, L (INFN, Rome) ; Su, T (Shandong U.) ; Sun, Q (Shandong U.) ; Sun, Z T (Beijing, GUCAS ; Beijing, Inst. High Energy Phys.) ; Tabarroni, L (INFN, Rome2) ; Tacconi, M (INFN, Milan Bicocca ; Milan Bicocca U.) ; Tang, Z C (Beijing, Inst. High Energy Phys.) ; Tian, J (INFN, Rome2) ; Tian, Y (Zhejiang U.) ; Ting, Samuel C C (CERN ; MIT) ; Ting, S M (MIT) ; Tomassetti, N (INFN, Perugia ; Perugia U.) ; Torsti, J (Turku U.) ; Urban, T (NASA, Houston ; MIT) ; Usoskin, I (Oulu U.) ; Vagelli, V (ASI, Rome ; INFN, Perugia ; Perugia U.) ; Vainio, R (Turku U.) ; Valencia-Otero, M (Taiwan, Natl. Central U.) ; Valente, E (INFN, Rome ; Rome U.) ; Valtonen, E (Turku U.) ; Vázquez Acosta, M (IAC, La Laguna) ; Vecchi, M (Kapteyn Astron. Inst., Groningen) ; Velasco, M (Madrid, CIEMAT) ; Wang, C X (Shandong U.) ; Wang, L (Beijing, Inst. Theor. Phys.) ; Wang, L Q (Shandong U.) ; Wang, N H (Shandong U.) ; Wang, Q L (Beijing, Inst. Theor. Phys.) ; Wang, S (Hawaii U.) ; Wang, X (MIT) ; Wang, Z M (Shandong U.) ; Wei, J (Geneva U. ; Shandong U.) ; Weng, Z L (MIT) ; Wu, H (Southeast U., Nanjing) ; Wu, Y (Shandong U.) ; Wu, Z B (Shandong U.) ; Xiao, J N (Zhejiang U.) ; Xiong, R Q (Southeast U., Nanjing) ; Xiong, X Z (Zhejiang U.) ; Xu, W (Shandong U.) ; Yan, Q (MIT) ; Yang, H T (Beijing, GUCAS ; Beijing, Inst. High Energy Phys.) ; Yang, Y (Taiwan, Natl. Cheng Kung U.) ; Yelland, A (MIT) ; Yi, H (Southeast U., Nanjing) ; You, Y H (Beijing, GUCAS ; Beijing, Inst. High Energy Phys.) ; Yu, Y M (MIT) ; Yu, Z Q (Beijing, Inst. High Energy Phys.) ; Zhang, C (Beijing, Inst. High Energy Phys.) ; Zhang, F Z (Beijing, GUCAS ; Beijing, Inst. High Energy Phys.) ; Zhang, J (Shandong U.) ; Zhang, J H (Southeast U., Nanjing) ; Zhang, Z (MIT) ; Zhao, P W (SYSU, Guangzhou) ; Zheng, C (Shandong U.) ; Zheng, Z M (BeiHang U.) ; Zhuang, H L (Beijing, Inst. High Energy Phys.) ; Zhukov, V (RWTH Aachen U.) ; Zichichi, A (INFN, Bologna) ; Zuccon, P (TIFPA-INFN, Trento ; Trento U.)

Publication 2024
Number of pages 8
In: Phys. Rev. Lett. 132 (2024) 261001
DOI 10.1103/PhysRevLett.132.261001 (publication)
Subject category Nuclear Physics - Experiment ; Astrophysics and Astronomy
Accelerator/Facility, Experiment AMS
Abstract Precision measurements by the Alpha Magnetic Spectrometer (AMS) on the International Space Station of the deuteron (D) flux are presented. The measurements are based on 21×106 D nuclei in the rigidity range from 1.9 to 21 GV collected from May 2011 to April 2021. We observe that over the entire rigidity range the D flux exhibits nearly identical time variations with the p, He3, and He4 fluxes. Above 4.5 GV, the D/He4 flux ratio is time independent and its rigidity dependence is well described by a single power law ∝RΔ with ΔD/He4=-0.108±0.005. This is in contrast with the He3/He4 flux ratio for which we find ΔHe3/He4=-0.289±0.003. Above ∼13  GV we find a nearly identical rigidity dependence of the D and p fluxes with a D/p flux ratio of 0.027±0.001. These unexpected observations indicate that cosmic deuterons have a sizable primarylike component. With a method independent of cosmic ray propagation, we obtain the primary component of the D flux equal to 9.4±0.5% of the He4 flux and the secondary component of the D flux equal to 58±5% of the He3 flux.
Copyright/License publication: © 2024 authors (License: CC BY 4.0)

Corresponding record in: Inspire
 Journalen skapades 2024-07-05, och modifierades senast 2024-09-09


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