Properties of Neon, Magnesium, and Silicon Primary Cosmic Rays Results from the Alpha Magnetic Spectrometer

We report the observation of new properties of primary cosmic rays, neon (Ne), magnesium (Mg), and silicon (Si), measured in the rigidity range 2.15 GV to 3.0 TV with $1.8×10^6$ Ne, $2.2×10^6$ Mg, and $1.6×10^6$ Si nuclei collected by the Alpha Magnetic Spectrometer experiment on the International S...

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Detalles Bibliográficos
Autores principales: Aguilar, M, Ali Cavasonza, L, Ambrosi, G, Arruda, L, Attig, N, Barao, F, Barrin, L, Bartoloni, A, Başeğmez-du Pree, S, Battiston, R, Becker, U, Behlmann, M, Beischer, B, Berdugo, J, Bertucci, B, Bindi, V, de Boer, W, Bollweg, K, Borgia, B, Boschini, M J, Bourquin, M, Bueno, E F, Burger, J, Burger, W J, Burmeister, S, Cai, X D, Capell, M, Casaus, J, Castellini, G, Cervelli, F, Chang, Y H, Chen, G M, Chen, H S, Chen, Y, Cheng, L, Chou, H Y, Chouridou, S, Choutko, V, Chung, C H, Clark, C, Coignet, G, Consolandi, C, Contin, A, Corti, C, Cui, Z, Dadzie, K, Dai, Y M, Delgado, C, Della Torre, S, Demirköz, M B, Derome, L, Di Falco, S, Di Felice, V, Díaz, C, Dimiccoli, F, von Doetinchem, P, Dong, F, Donnini, F, Duranti, M, Egorov, A, Eline, A, Feng, J, Fiandrini, E, Fisher, P, Formato, V, Freeman, C, Galaktionov, Y, Gámez, C, García-López, R J, Gargiulo, C, Gast, H, Gebauer, I, Gervasi, M, Giovacchini, F, Gómez-Coral, D M, Gong, J, Goy, C, Grabski, V, Grandi, D, Graziani, M, Guo, K H, Haino, S, Han, K C, Hashmani, R K, He, Z H, Heber, B, Hsieh, T H, Hu, J Y, Huang, Z C, Incagli, M, Jang, W Y, Jia, Yi, Jinchi, H, Kanishev, K, Khiali, B, Kim, G N, Kirn, Th, Konyushikhin, M, Kounina, O, Kounine, A, Koutsenko, V, Kuhlman, A, Kulemzin, A, La Vacca, G, Laudi, E, Laurenti, G, Lazzizzera, I, Lebedev, A, Lee, H T, Lee, S C, Li, J Q, Li, M, Li, Q, Li, S, Li, T X, Li, Z H, Light, C, Lin, C H, Lippert, T, Liu, Z, Lu, S Q, Lu, Y S, Luebelsmeyer, K, Luo, J Z, Lyu, S S, Machate, F, Mañá, C, Marín, J, Marquardt, J, Martin, T, Martínez, G, Masi, N, Maurin, D, Menchaca-Rocha, A, Meng, Q, Mo, D C, Molero, M, Mott, P, Mussolin, L, Ni, J Q, Nikonov, N, Nozzoli, F, Oliva, A, Orcinha, M, Palermo, M, Palmonari, F, Paniccia, M, Pashnin, A, Pauluzzi, M, Pensotti, S, Phan, H D, Piandani, R, Plyaskin, V, Poluianov, S, Qi, X M, Qin, X, Qu, Z Y, Quadrani, L, Rancoita, P G, Rapin, D, Reina Conde, A, Rosier-Lees, S, Rozhkov, A, Rozza, D, Sagdeev, R, Schael, S, Schmidt, S M, Schulz von Dratzig, A, Schwering, G, Seo, E S, Shan, B S, Shi, J Y, Siedenburg, T, Solano, C, Sonnabend, R, Song, J W, Sun, Q, Sun, Z T, Tacconi, M, Tang, X W, Tang, Z C, Tian, J, Ting, Samuel C C, Ting, S M, Tomassetti, N, Torsti, J, Tüysüz, C, Urban, T, Usoskin, I, Vagelli, V, Vainio, R, Valente, E, Valtonen, E, Vázquez Acosta, M, Vecchi, M, Velasco, M, Vialle, J P, Wallmann, C, Wang, L Q, Wang, N H, Wang, Q L, Wang, S, Wang, X, Wang, Z X, Wei, J, Weng, Z L, Wu, H, Xiong, R Q, Xu, W, Yan, Q, Yang, Y, Yi, H, Yu, Y J, Yu, Z Q, Zannoni, M, Zhang, C, Zhang, F, Zhang, F Z, Zhang, J H, Zhang, Z, Zhao, F, Zheng, Z M, Zhuang, H L, Zhukov, V, Zichichi, A, Zimmermann, N, Zuccon, P
Lenguaje:eng
Publicado: 2020
Materias:
Astrophysics and Astronomy
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.124.211102
http://cds.cern.ch/record/2724788
Descripción
Sumario:We report the observation of new properties of primary cosmic rays, neon (Ne), magnesium (Mg), and silicon (Si), measured in the rigidity range 2.15 GV to 3.0 TV with $1.8×10^6$ Ne, $2.2×10^6$ Mg, and $1.6×10^6$ Si nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. The Ne and Mg spectra have identical rigidity dependence above 3.65 GV. The three spectra have identical rigidity dependence above 86.5 GV, deviate from a single power law above 200 GV, and harden in an identical way. Unexpectedly, above 86.5 GV the rigidity dependence of primary cosmic rays Ne, Mg, and Si spectra is different from the rigidity dependence of primary cosmic rays He, C, and O. This shows that the Ne, Mg, and Si and He, C, and O are two different classes of primary cosmic rays.

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