CERN Accelerating science

Published Articles
Title	Precision Measurement of the Proton Flux in Primary Cosmic Rays from Rigidity 1 GV to 1.8 TV with the Alpha Magnetic Spectrometer on the International Space Station
Author(s)	Aguilar, M (Madrid, CIEMAT) ; Aisa, D (INFN, Perugia ; Perugia U.) ; Alpat, B (INFN, Perugia) ; Alvino, A (INFN, Perugia) ; Ambrosi, G (INFN, Perugia) ; Andeen, K (KIT, Karlsruhe, IKP) ; Arruda, L (LIP, Lisbon) ; Attig, N (IAS, Julich ; JARA, Aachen) ; Azzarello, P (INFN, Perugia ; Geneva U.) ; Bachlechner, A (RWTH Aachen U. ; JARA, Aachen) ; Barao, F (LIP, Lisbon) ; Barrau, A (LPSC, Grenoble) ; Barrin, L (CERN) ; Bartoloni, A (INFN, Rome) ; Basara, L (Annecy, LAPP ; INFN, Trento ; Trento U.) ; Battarbee, M (Turku U.) ; Battiston, R (INFN, Trento ; Trento U.) ; Bazo, J (INFN, Perugia) ; Becker, U (MIT) ; Behlmann, M (MIT) ; Beischer, B (JARA, Aachen ; RWTH Aachen U.) ; Berdugo, J (Madrid, CIEMAT) ; Bertucci, B (INFN, Perugia ; Perugia U.) ; Bigongiari, G (INFN, Pisa ; Pisa U.) ; Bindi, V (Hawaii U.) ; Bizzaglia, S (INFN, Perugia) ; Bizzarri, M (INFN, Perugia ; Perugia U.) ; Boella, G (INFN, Milan Bicocca ; Milan Bicocca U.) ; de Boer, W (KIT, Karlsruhe, IKP) ; Bollweg, K (NASA, Houston) ; Bonnivard, V (LPSC, Grenoble) ; Borgia, B (INFN, Rome ; Rome U.) ; Borsini, S (INFN, Perugia) ; Boschini, M J (INFN, Milan Bicocca) ; Bourquin, M (Geneva U.) ; Burger, J (MIT) ; Cadoux, F (Geneva U.) ; Cai, X  D (MIT) ; Capell, M (MIT) ; Caroff, S (Annecy, LAPP) ; Casaus, J (Madrid, CIEMAT) ; Cascioli, V (INFN, Perugia) ; Castellini, G (Florence, IROE) ; Cernuda, I (Madrid, CIEMAT) ; Cerreta, D (INFN, Perugia ; Perugia U.) ; Cervelli, F (INFN, Pisa) ; Chae, M J (Ewha Women's U., Seoul) ; Chang, Y H (Taiwan, Natl. Central U.) ; Chen, A I (MIT) ; Chen, H (MIT) ; Cheng, G M (Beijing, Inst. High Energy Phys.) ; Chen, H S (Beijing, Inst. High Energy Phys.) ; Cheng, L (Shandong U.) ; Chou, H Y (Taiwan, Natl. Central U.) ; Choumilov, E (MIT) ; Choutko, V (MIT) ; Chung, C H (RWTH Aachen U. ; JARA, Aachen) ; Clark, C (NASA, Houston) ; Clavero, R (IAC, La Laguna ; Laguna U., Tenerife) ; Coignet, G (Annecy, LAPP) ; Consolandi, C (Hawaii U.) ; Contin, A (INFN, Bologna ; Bologna U.) ; Corti, C (Hawaii U.) ; Cortina Gil, E (Geneva U.) ; Coste, B (INFN, Trento ; Trento U. ; CERN) ; Creus, W (Taiwan, Natl. Central U.) ; Crispoltoni, M (INFN, Perugia ; Perugia U.) ; Cui, Z (Shandong U.) ; Dai, Y M (Inst. Electr. Engin., Beijing) ; 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 Masso, L (INFN, Perugia ; Perugia U.) ; Dimiccoli, F (INFN, Trento ; Trento U.) ; Díaz, C (Madrid, CIEMAT) ; von Doetinchem, P (Hawaii U.) ; Donnini, F (INFN, Perugia ; Perugia U.) ; Du, W J (Shandong U.) ; Duranti, M (INFN, Perugia ; Perugia U.) ; D'Urso, D (INFN, Perugia) ; Eline, A (MIT) ; Eppling, F J (MIT) ; Eronen, T (Turku U.) ; Fan, Y Y (Taiwan, Inst. Phys.) ; Farnesini, L (INFN, Perugia) ; Feng, J (Annecy, LAPP) ; Fiandrini, E (INFN, Perugia ; Perugia U.) ; Fiasson, A (Annecy, LAPP) ; Finch, E (Yale U.) ; Fisher, P (MIT) ; Galaktionov, Y (MIT) ; Gallucci, G (INFN, Pisa) ; García, B (Madrid, CIEMAT) ; García-López, R (IAC, La Laguna ; Laguna U., Tenerife) ; Gargiulo, C (CERN) ; Gast, H (RWTH Aachen U. ; JARA, Aachen) ; Gebauer, I (KIT, Karlsruhe, IKP) ; Gervasi, M (INFN, Milan Bicocca ; Milan Bicocca U.) ; Ghelfi, A (LPSC, Grenoble) ; Gillard, W (Taiwan, Natl. Central U.) ; Giovacchini, F (Madrid, CIEMAT) ; Goglov, P (MIT) ; Gong, J (Southeast U., Nanjing) ; Goy, C (Annecy, LAPP) ; Grabski, V (Mexico U.) ; Grandi, D (INFN, Milan Bicocca) ; Graziani, M (INFN, Perugia ; Perugia U.) ; Guandalini, C (INFN, Bologna ; Bologna U.) ; Guerri, I (INFN, Pisa ; Pisa U.) ; Guo, K H (SYSU, Guangzhou) ; Haas, D (Geneva U.) ; Habiby, M (Geneva U.) ; Haino, S (Taiwan, Natl. Central U. ; Taiwan, Inst. Phys.) ; Han, K C (CSIST, Taiwan) ; He, Z H (SYSU, Guangzhou) ; Heil, M (MIT) ; Hoffman, J (Taiwan, Natl. Central U.) ; Hsieh, T H (MIT) ; Huang, Z C (SYSU, Guangzhou) ; Huh, C (CHEP, Taegu) ; Incagli, M (INFN, Pisa) ; Ionica, M (INFN, Perugia ; Perugia U.) ; Jang, W Y (CHEP, Taegu) ; Jinchi, H (CSIST, Taiwan) ; Kanishev, K (INFN, Trento ; Trento U. ; CERN) ; Kim, G N (CHEP, Taegu) ; Kim, K S (CHEP, Taegu) ; Kirn, Th (JARA, Aachen ; RWTH Aachen U.) ; Kossakowski, R (Annecy, LAPP) ; Kounina, O (MIT) ; Kounine, A (MIT) ; Koutsenko, V (MIT) ; Krafczyk, M S (MIT) ; La Vacca, G (INFN, Milan Bicocca) ; Laudi, E (INFN, Perugia ; Perugia U.) ; Laurenti, G (INFN, Bologna ; Bologna U.) ; Lazzizzera, I (INFN, Trento ; Trento U.) ; Lebedev, A (MIT) ; Lee, H T (Taiwan, Inst. Phys.) ; Lee, S C (Taiwan, Inst. Phys.) ; Leluc, C (Geneva U.) ; Levi, G (INFN, Bologna ; Bologna U.) ; Li, H L (Taiwan, Inst. Phys.) ; Li, J Q (Southeast U., Nanjing) ; Li, Q (Southeast U., Nanjing) ; Li, Q (MIT) ; Li, T X (SYSU, Guangzhou) ; Li, W (BeiHang U.) ; Li, Y (Geneva U.) ; Li, Z H (Beijing, Inst. High Energy Phys.) ; Li, Z Y (Taiwan, Inst. Phys.) ; Lim, S (CHEP, Taegu) ; Lin, C H (Taiwan, Inst. Phys.) ; Lipari, P (INFN, Rome) ; Lippert, T (IAS, Julich ; JARA, Aachen) ; Liu, D (Taiwan, Inst. Phys.) ; Liu, H (Southeast U., Nanjing) ; Lolli, M (INFN, Bologna ; Bologna U.) ; Lomtadze, T (INFN, Pisa) ; Lu, M J (INFN, Trento ; Trento U.) ; Lu, S Q (Taiwan, Inst. Phys.) ; Lu, Y S (Beijing, Inst. High Energy Phys.) ; Luebelsmeyer, K (RWTH Aachen U. ; JARA, Aachen) ; Luo, J Z (Southeast U., Nanjing) ; Lv, S S (SYSU, Guangzhou) ; Majka, R (Yale U.) ; Mañá, C (Madrid, CIEMAT) ; Marín, J (Madrid, CIEMAT) ; Martin, T (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) ; Mo, D C (SYSU, Guangzhou) ; Morescalchi, L (INFN, Pisa) ; Mott, P (NASA, Houston) ; Müller, M (JARA, Aachen ; RWTH Aachen U.) ; Ni, J Q (SYSU, Guangzhou) ; Nikonov, N (KIT, Karlsruhe, IKP) ; Nozzoli, F (INFN, Perugia) ; Nunes, P (LIP, Lisbon) ; Obermeier, A (JARA, Aachen ; RWTH Aachen U.) ; Oliva, A (Madrid, CIEMAT) ; Orcinha, M (LIP, Lisbon) ; Palmonari, F (INFN, Bologna ; Bologna U.) ; Palomares, C (Madrid, CIEMAT) ; Paniccia, M (Geneva U.) ; Papi, A (INFN, Perugia) ; Pauluzzi, M (INFN, Perugia ; Perugia U.) ; Pedreschi, E (INFN, Pisa) ; Pensotti, S (INFN, Milan Bicocca ; Milan Bicocca U.) ; Pereira, R (Hawaii U.) ; Picot-Clemente, N (Maryland U., College Park, IPST) ; Pilo, F (INFN, Pisa) ; Piluso, A (INFN, Perugia ; Perugia U.) ; Pizzolotto, C (INFN, Perugia) ; Plyaskin, V (MIT) ; Pohl, M (Geneva U.) ; Poireau, V (Annecy, LAPP) ; Postaci, E (Middle East Tech. U., Ankara) ; Putze, A (Annecy, LAPP) ; Quadrani, L (INFN, Bologna ; Bologna U.) ; Qi, X M (SYSU, Guangzhou) ; Qin, X (INFN, Perugia) ; Qu, Z Y (Taiwan, Inst. Phys.) ; Räihä, T (JARA, Aachen ; RWTH Aachen U.) ; Rancoita, P G (INFN, Milan Bicocca) ; Rapin, D (Geneva U.) ; Ricol, J S (LPSC, Grenoble) ; Rodríguez, I (Madrid, CIEMAT) ; Rosier-Lees, S (Annecy, LAPP) ; Rozhkov, A (MIT) ; Rozza, D (INFN, Milan Bicocca) ; Sagdeev, R (Maryland U.) ; Sandweiss, J (Yale U.) ; Saouter, P (Geneva U.) ; Sbarra, C (INFN, Bologna ; Bologna U.) ; Schael, S (JARA, Aachen ; RWTH Aachen U.) ; Schmidt, S M (IAS, Julich ; JARA, Aachen) ; Schulz von Dratzig, A (RWTH Aachen U. ; JARA, Aachen) ; Schwering, G (JARA, Aachen ; RWTH Aachen U.) ; Scolieri, G (INFN, Perugia) ; Seo, E S (Maryland U., College Park, IPST) ; Shan, B S (BeiHang U.) ; Shan, Y H (BeiHang U.) ; Shi, J Y (Southeast U., Nanjing) ; Shi, X  Y (MIT) ; Shi, Y M (Shanghai Jiaotong U.) ; Siedenburg, T (RWTH Aachen U. ; JARA, Aachen) ; Son, D (CHEP, Taegu) ; Spada, F (INFN, Rome) ; Spinella, F (INFN, Pisa) ; Sun, W (MIT) ; Sun, W H (MIT) ; Tacconi, M (INFN, Milan Bicocca ; Milan Bicocca U. ; CERN) ; Tang, C P (SYSU, Guangzhou) ; Tang, X W (Beijing, Inst. High Energy Phys.) ; Tang, Z C (Beijing, Inst. High Energy Phys.) ; Tao, L (Annecy, LAPP) ; Tescaro, D (IAC, La Laguna ; Laguna U., Tenerife) ; Ting, Samuel C C (MIT) ; Ting, S M (MIT) ; Tomassetti, N (LPSC, Grenoble) ; Torsti, J (Turku U.) ; Türkoğlu, C (Middle East Tech. U., Ankara) ; Urban, T (NASA, Houston) ; Vagelli, V (KIT, Karlsruhe, IKP) ; Valente, E (INFN, Rome ; Rome U.) ; Vannini, C (INFN, Pisa) ; Valtonen, E (Turku U.) ; Vaurynovich, S (MIT) ; Vecchi, M (Sao Paulo U., Sao Carlos) ; Velasco, M (Madrid, CIEMAT) ; Vialle, J P (Annecy, LAPP) ; Vitale, V (INFN, Perugia) ; Vitillo, S (Geneva U.) ; Wang, L Q (Shandong U.) ; Wang, N H (Shandong U.) ; Wang, Q L (Inst. Electr. Engin., Beijing) ; Wang, R S (Shanghai Jiaotong U.) ; Wang, X (MIT) ; Wang, Z X (Zhongshan U.) ; Weng, Z L (MIT) ; Whitman, K (Hawaii U.) ; Wienkenhöver, J (RWTH Aachen U. ; JARA, Aachen) ; Wu, H (Southeast U., Nanjing) ; Wu, X (Geneva U.) ; Xia, X (Madrid, CIEMAT) ; Xie, M (MIT) ; Xie, S (Shanghai Jiaotong U.) ; Xiong, R Q (Southeast U., Nanjing) ; Xin, G M (Shandong U.) ; Xu, N S (SYSU, Guangzhou) ; Xu, W (Beijing, Inst. High Energy Phys. ; MIT) ; Yan, Q (MIT) ; Yang, J (Ewha Women's U., Seoul) ; Yang, M (Beijing, Inst. High Energy Phys.) ; Ye, Q H (Shanghai Jiaotong U.) ; Yi, H (Southeast U., Nanjing) ; Yu, Y J (Inst. Electr. Engin., Beijing) ; Yu, Z Q (Beijing, Inst. High Energy Phys.) ; Zeissler, S (KIT, Karlsruhe, IKP) ; Zhang, J H (Southeast U., Nanjing) ; Zhang, M T (SYSU, Guangzhou) ; Zhang, X B (SYSU, Guangzhou) ; Zhang, Z (SYSU, Guangzhou) ; Zheng, Z M (BeiHang U.) ; Zhuang, H L (Beijing, Inst. High Energy Phys.) ; Zhukov, V (JARA, Aachen ; RWTH Aachen U.) ; Zichichi, A (INFN, Bologna ; Bologna U.) ; Zimmermann, N (JARA, Aachen ; RWTH Aachen U.) ; Zuccon, P (MIT) ; Zurbach, C (U. Montpellier 2, LUPM)
Collaboration	AMS
Publication	2015
Number of pages	9
In:	Phys. Rev. Lett. 114 (2015) 171103
DOI	10.1103/PhysRevLett.114.171103
Subject category	Astrophysics and Astronomy ; Detectors and Experimental Techniques
Accelerator/Facility, Experiment	AMS RE1
Abstract	A precise measurement of the proton flux in primary cosmic rays with rigidity (momentum/charge) from 1 GV to 1.8 TV is presented based on 300 million events. Knowledge of the rigidity dependence of the proton flux is important in understanding the origin, acceleration, and propagation of cosmic rays. We present the detailed variation with rigidity of the flux spectral index for the first time. The spectral index progressively hardens at high rigidities.
Copyright/License	publication: © 2015-2024 The Author(s) (License: CC-BY-3.0)

Corresponding record in: Inspire