Precise knowledge of the charge and rigidity dependence of the secondary cosmic ray fluxes and the secondary-to-primary flux ratios is essential in the understanding of cosmic ray propagation. We report the properties of heavy secondary cosmic ray fluorine F in the rigidity R range 2.15 GV to 2.9 TV based on 0.29 million events collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. The fluorine spectrum deviates from a single power law above 200 GV. The heavier secondary-to-primary F/Si flux ratio rigidity dependence is distinctly different from the lighter B/O (or B/C) rigidity dependence. In particular, above 10 GV, the F/SiB/O ratio can be described by a power law Rδ with δ=0.052±0.007. This shows that the propagation properties of heavy cosmic rays, from F to Si, are different from those of light cosmic rays, from He to O, and that the secondary cosmic rays have two classes.

Properties of Heavy Secondary Fluorine Cosmic Rays: Results from the Alpha Magnetic Spectrometer / Aguilar, M.; Cavasonza, L. A.; Allen, M. S.; Alpat, B.; Ambrosi, G.; Arruda, L.; Attig, N.; Barao, F.; Barrin, L.; Bartoloni, A.; Basegmez-Du Pree, S.; Battiston, R.; Behlmann, M.; Beranek, B.; Berdugo, J.; Bertucci, B.; Bindi, V.; 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, G. R.; 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.; Delgado, C.; Della Torre, S.; Demirkoz, M. B.; Derome, L.; Di Falco, S.; Di Felice, V.; Diaz, 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.; Gamez, C.; Garcia-Lopez, R. J.; Gargiulo, C.; Gast, H.; Gervasi, M.; Giovacchini, F.; Gomez-Coral, D. M.; Gong, J.; Goy, C.; Grabski, V.; Grandi, D.; Graziani, M.; Haino, S.; Han, K. C.; Hashmani, R. K.; He, Z. H.; Heber, B.; Hsieh, T. H.; Hu, J. Y.; Incagli, M.; Jang, W. Y.; Jia, Y.; Jinchi, H.; Kanishev, K.; Khiali, B.; Kim, G. N.; Kirn, T.; 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, J. H.; Li, Z. H.; Liang, J.; Light, C.; Lin, C. H.; Lippert, T.; Liu, J. H.; Liu, Z.; Lu, S. Q.; Lu, Y. S.; Luebelsmeyer, K.; Luo, J. Z.; Luo, X.; Lyu, S. S.; Machate, F.; Mana, C.; Marin, J.; Marquardt, J.; Martin, T.; Martinez, G.; Masi, N.; Maurin, D.; Menchaca-Rocha, A.; Meng, Q.; Mikhailov, V. V.; Mo, D. C.; Molero, M.; Mott, P.; Mussolin, L.; Negrete, J.; 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.; Qin, X.; Qu, Z. Y.; Quadrani, L.; Rancoita, P. G.; Rapin, D.; Conde, A. R.; Robyn, E.; Rosier-Lees, S.; Rozhkov, A.; Rozza, D.; Sagdeev, R.; Schael, S.; Schulz Von Dratzig, A.; Schwering, G.; Seo, E. S.; Shakfa, Z.; Shan, B. S.; Siedenburg, T.; Solano, C.; Song, J. W.; Song, X. J.; Sonnabend, R.; Strigari, L.; Su, T.; Sun, Q.; Sun, Z. T.; Tacconi, M.; Tang, X. W.; Tang, Z. C.; Tian, J.; Ting, S. C. C.; Ting, S. M.; Tomassetti, N.; Torsti, J.; Tuysuz, C.; Urban, T.; Usoskin, I.; Vagelli, V.; Vainio, R.; Valencia-Otero, M.; Valente, E.; Valtonen, E.; Vazquez Acosta, M.; Vecchi, M.; Velasco, M.; Vialle, J. P.; Wang, C. X.; Wang, L.; Wang, L. Q.; Wang, N. H.; Wang, Q. L.; Wang, S.; Wang, X.; Wang, Y.; Wang, Z. M.; Wei, J.; Weng, Z. L.; Wu, H.; Xiong, R. Q.; Xu, W.; Yan, Q.; Yang, Y.; Yashin, I. I.; Yi, H.; Yu, Y. M.; Yu, Z. Q.; Zannoni, M.; Zhang, C.; Zhang, F.; Zhang, F. Z.; Zhang, J. H.; Zhang, Z.; Zhao, F.; Zheng, C.; Zheng, Z. M.; Zhuang, H. L.; Zhukov, V.; Zichichi, A.; Zuccon, P.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 126:8(2021), p. 081102. [10.1103/PhysRevLett.126.081102]

Properties of Heavy Secondary Fluorine Cosmic Rays: Results from the Alpha Magnetic Spectrometer

Rozza D.
Membro del Collaboration Group
;
2021

Abstract

Precise knowledge of the charge and rigidity dependence of the secondary cosmic ray fluxes and the secondary-to-primary flux ratios is essential in the understanding of cosmic ray propagation. We report the properties of heavy secondary cosmic ray fluorine F in the rigidity R range 2.15 GV to 2.9 TV based on 0.29 million events collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. The fluorine spectrum deviates from a single power law above 200 GV. The heavier secondary-to-primary F/Si flux ratio rigidity dependence is distinctly different from the lighter B/O (or B/C) rigidity dependence. In particular, above 10 GV, the F/SiB/O ratio can be described by a power law Rδ with δ=0.052±0.007. This shows that the propagation properties of heavy cosmic rays, from F to Si, are different from those of light cosmic rays, from He to O, and that the secondary cosmic rays have two classes.
Properties of Heavy Secondary Fluorine Cosmic Rays: Results from the Alpha Magnetic Spectrometer / Aguilar, M.; Cavasonza, L. A.; Allen, M. S.; Alpat, B.; Ambrosi, G.; Arruda, L.; Attig, N.; Barao, F.; Barrin, L.; Bartoloni, A.; Basegmez-Du Pree, S.; Battiston, R.; Behlmann, M.; Beranek, B.; Berdugo, J.; Bertucci, B.; Bindi, V.; 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, G. R.; 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.; Delgado, C.; Della Torre, S.; Demirkoz, M. B.; Derome, L.; Di Falco, S.; Di Felice, V.; Diaz, 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.; Gamez, C.; Garcia-Lopez, R. J.; Gargiulo, C.; Gast, H.; Gervasi, M.; Giovacchini, F.; Gomez-Coral, D. M.; Gong, J.; Goy, C.; Grabski, V.; Grandi, D.; Graziani, M.; Haino, S.; Han, K. C.; Hashmani, R. K.; He, Z. H.; Heber, B.; Hsieh, T. H.; Hu, J. Y.; Incagli, M.; Jang, W. Y.; Jia, Y.; Jinchi, H.; Kanishev, K.; Khiali, B.; Kim, G. N.; Kirn, T.; 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, J. H.; Li, Z. H.; Liang, J.; Light, C.; Lin, C. H.; Lippert, T.; Liu, J. H.; Liu, Z.; Lu, S. Q.; Lu, Y. S.; Luebelsmeyer, K.; Luo, J. Z.; Luo, X.; Lyu, S. S.; Machate, F.; Mana, C.; Marin, J.; Marquardt, J.; Martin, T.; Martinez, G.; Masi, N.; Maurin, D.; Menchaca-Rocha, A.; Meng, Q.; Mikhailov, V. V.; Mo, D. C.; Molero, M.; Mott, P.; Mussolin, L.; Negrete, J.; 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.; Qin, X.; Qu, Z. Y.; Quadrani, L.; Rancoita, P. G.; Rapin, D.; Conde, A. R.; Robyn, E.; Rosier-Lees, S.; Rozhkov, A.; Rozza, D.; Sagdeev, R.; Schael, S.; Schulz Von Dratzig, A.; Schwering, G.; Seo, E. S.; Shakfa, Z.; Shan, B. S.; Siedenburg, T.; Solano, C.; Song, J. W.; Song, X. J.; Sonnabend, R.; Strigari, L.; Su, T.; Sun, Q.; Sun, Z. T.; Tacconi, M.; Tang, X. W.; Tang, Z. C.; Tian, J.; Ting, S. C. C.; Ting, S. M.; Tomassetti, N.; Torsti, J.; Tuysuz, C.; Urban, T.; Usoskin, I.; Vagelli, V.; Vainio, R.; Valencia-Otero, M.; Valente, E.; Valtonen, E.; Vazquez Acosta, M.; Vecchi, M.; Velasco, M.; Vialle, J. P.; Wang, C. X.; Wang, L.; Wang, L. Q.; Wang, N. H.; Wang, Q. L.; Wang, S.; Wang, X.; Wang, Y.; Wang, Z. M.; Wei, J.; Weng, Z. L.; Wu, H.; Xiong, R. Q.; Xu, W.; Yan, Q.; Yang, Y.; Yashin, I. I.; Yi, H.; Yu, Y. M.; Yu, Z. Q.; Zannoni, M.; Zhang, C.; Zhang, F.; Zhang, F. Z.; Zhang, J. H.; Zhang, Z.; Zhao, F.; Zheng, C.; Zheng, Z. M.; Zhuang, H. L.; Zhukov, V.; Zichichi, A.; Zuccon, P.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 126:8(2021), p. 081102. [10.1103/PhysRevLett.126.081102]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/245778
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